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69 results about "Nickel(II) acetate" patented technology
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Nickel(II) acetate is the name for the coordination compounds with the formula Ni(CH₃CO₂)₂·x H₂O where x can be 0, 2, and 4. The green tetrahydrate Ni(CH₃CO₂)₂·4 H₂O is most common. It is used for electroplating.
Preparation method of nickel electrode made of piezoelectric composite material
InactiveCN102337526ALow costReduce the temperatureLiquid/solution decomposition chemical coatingNickel saltChemical plating
The invention discloses a preparation method of a nickel electrode made of a piezoelectric composite material. The nickel electrode is prepared by using a chemical plating method. The preparation method comprises steps of roughening, sensitizing and activating the piezoelectric composite material, and putting the piezoelectric composite material in a nickel plating liquid to be plated with nickelto obtain the nickel electrode, wherein the activating solution used in the activation procedure is a palladium salt activating solution or nickel salt activating solution, the palladium salt activating solution is prepared by dissolving PdCl2 in certain hydrochloric acid, the PdCl2 content is 0.3-0.5 g / L and the content of the concentrated HCl is 9.9-11 ml / L; the nickel salt activating solution is prepared by dissolving nickel acetate and sodium borohydride in absolute methanol, the content of the nickel acetate is 64-68 g / L, and the content of the sodium borohydride is 64-68 g / L. The invention has the advantages of high nickel plating speed, easiness in regulating and controlling the thickness of a plating layer, uniform and dense thickness of the plating layer of a nickel plate, strongcombination force of the plating layer, good uniformity and wearing resistance, remarkable erosion resistance, excellent welding property and long service life, so that the application demand of the composite material is met.
Owner:UNIV OF JINAN
Method for preparing manganese, nickel codoped bismuth ferrite film by sol-gel process
The invention discloses a method for preparing manganese, nickel codoped bismuth ferrite film by a sol-gel process. The method comprises the steps of weighing material ferric nitrate, bismuth nitrate, manganese acetate and nickel acetate according to a general formula BiFe(1-2x)MnxNixO3 (x is smaller than or equal to 0.05 and greater than or equal to 0.0125); adding glacial acetic acid to agitate for 30 minutes at 80 DEG C; and adding ethylene glycol monomethyl ether to agitate for 180 minutes at room temperature to prepare into a liquid precursor of which the concentration is 0.1-0.2mol / L. The final sample is obtained by preparing a wet film on indium tin oxide / glass or a platinum substrate by a spin-coating method, pre-annealing, finally annealing the film, and repeating the pre-annealing and film annealing processes for 10-20 times. The method has the characteristics that the impurity phase in bismuth ferrite can be effectively restrained; the grain size and the root-mean-square roughness of the film surface are reduced; the insulating property, ferroelectric properties, the ferromagnetic property and the optical property of the sample are improved; and the method is simple in production technology, good in reproducibility, and low in cost.
Owner:XINJIANG UNIVERSITY
Manganese oxide/nickel micro-sphere with porous structure, and preparation and application thereof
ActiveCN106876682AReduce carryShape is easy to controlCell electrodesSecondary cellsMANGANESE ACETATEElectrolytic agent
The invention discloses a manganese oxide / nickel micro-sphere with a porous structure, and a preparation method and application thereof. The preparation method comprises the steps of adopting manganese acetate and nickel acetate as a manganese source and a nickel source, adopting urea as a precipitator, adopting water and ethylene glycol as solvents, firstly adopting a hydrothermal method for synthesizing a carbonate precursor of manganese and nickel, and then calcining under an argon atmosphere to obtain the manganese oxide / nickel micro-sphere with the porous structure. Manganese and nickel elements in the micro-sphere are distributed uniformly, the sphere is formed by self-assembly of nanoparticles, meanwhile, a lot of staggered nanosheets exist on the surface of the sphere, each nanosheet is formed by overlapping two layers of thinner nanosheets, a gap exists between the layers, and the specific surface area is larger. The porous structure assembled by secondary particles is not only beneficial for full contact of an electrolyte and an active substance, but also effectively adapt to volume expansion of a material in a charging and discharging process, so that the electrochemical performance of the manganese oxide / nickel micro-sphere when being used as a lithium ion battery cathode material is greatly improved. The preparation method provided by the invention is easy and convenient to operate, controllable in reaction conditions, and easy for scale-up experiment.
Owner:CENT SOUTH UNIV
Cobalt titanate@nickel oxide core-shell photocatalytic material as well as preparation method and application thereof
ActiveCN110813298AImprove separation efficiencyEfficient degradationWater/sewage treatment by irradiationWater treatment compoundsPhotocatalytic reactionHexamethylenetetramine
The invention discloses a cobalt titanate@nickel oxide graded core-shell photocatalytic material as well as a preparation method and application thereof. The cobalt titanate@nickel oxide graded core-shell photocatalytic material is formed by uniformly growing ultrathin nickel oxide nanosheets on a cobalt titanate sub-micron band. The preparation method comprises the following steps: firstly, obtaining cobalt titanate precursor fiber by utilizing electrostatic spinning technology, and calcining to obtain the cobalt titanate sub-micron band; and carrying out oil bath reaction on the obtained cobalt titanate sub-micron band in an aqueous solution containing nickel acetate, hexamethylenetetramine and sodium citrate, and calcining to obtain the cobalt titanate@nickel oxide graded core-shell photocatalytic material. The obtained cobalt titanate@nickel oxide graded core-shell photocatalytic material has a large specific surface area, and can provide more active sites for photocatalytic reaction. Meanwhile, the photocatalyst has the advantages of being large in photoresponse range, high in photo-induced electron-hole separation efficiency, high in photocatalysis capacity, good in cyclingstability and the like, tetracycline can be efficiently degraded, and the application prospect in the aspect of photocatalytic degradation of antibiotics is promising.
Owner:QILU UNIV OF TECH
Doped carbon material catalyst as well as preparation method and application thereof
InactiveCN111359615AOvercome the disadvantage of low yieldAvoid hydrolysisCatalyst activation/preparationMetal/metal-oxides/metal-hydroxide catalystsPtru catalystPolyvinyl alcohol
The invention provides a doped carbon material catalyst as well as a preparation method and application thereof, and belongs to the fields of material preparation and electro-catalysis. The Ni-doped carbon material is prepared by an electrostatic spinning and a calcining method, and is prepared from at least the following raw materials: a nickel source, which is one or more of nickel acetate, nickel chloride and nickel nitrate; an organic additive, which is one or more of polyacrylamide, polyvinylpyrrolidone and polyvinyl alcohol; and glacial acetic acid. An H-type reactor is used for separating a cathode chamber from an anode chamber; two chambers are separated by a proton exchange membrane, the prepared Ni-doped carbon material catalyst is prepared into an electrode plate, the electrodeplate is filled in the cathode chamber, nitrite in water is electrochemically reduced into ammonia by the catalyst under a constant potential condition, and the catalyst has the advantages of normal temperature, normal pressure, no need of introducing H2 in the reaction process, and simple operation.
Owner:FUZHOU UNIV
Preparation method of reduced graphene oxide/nickel oxide composite wave absorbing material
InactiveCN104004496AChange electromagnetic parametersLow dielectric constantOther chemical processesReflection lossArgon atmosphere
The invention discloses a reduced graphene oxide / nickel oxide composite wave absorbing material. Nickel oxide nanoparticles with the particle size of 1-100nm are uniformly distributed on a graphene nanosheet. The composite wave absorbing material has superior microwave absorbing performances: the lowest optimum reflection loss is -55.5dB, and the highest absorption frequency band below -10dB is 6.7GHz. The composite wave absorbing material has a light weight, and can meet the characteristics of light weight and high strength of wave absorbing materials. The invention discloses a preparation method of the composite wave absorbing material. The preparation method comprises the following steps: dissolving nickel acetate in a graphene oxide solution, freeze-drying, and carrying out high temperature pyrolysis on the obtained freeze-dried sample in argon atmosphere to prepare the wave absorbing material. The preparation method has the advantages of simplicity, environmental protection and low cost.
Owner:北京军通新材科技有限公司
Preparation method for solid acid catalyst r-AI203
InactiveCN101837294AHigh purityExtended service lifeOrganic-compounds/hydrides/coordination-complexes catalystsMetal/metal-oxides/metal-hydroxide catalystsSolid acidNitrogen gas
The invention provides a preparation method for catalyst r-AI203 in the productive process of methyl alcohol, which sequentially comprises the following steps that: under the temperature condition of 500 DEG C to 550 DEC temperature condition, a reacting furnace is used for roasting r-AI203 carrier for 4-5 hours; nickel acetate, ammonium molybdate and hexamine is dissolved in ammonia water with 30% of percentage concentration to prepare clear impregnating liquid, is stirred and soaked in the room temperature for 2-4 hours, filtered and dried, dried in the vacuum for 5-8 hours in the temperature of 60 DEG C-100 DEG C, compressed and mould by a tablet machine, sieved and filtered; and then the r-AI203 carrier is baked in a reacting furnace which is risen to 450 DEG C to 550 DEG C; the baked r-AI203 is for four hours to obtain a catalyst in the nitrogen containing 1% of oxygen according to the volume percent, wherein the mass percents of the nickel and the molybdenum in the active components are respectively 25-10% and 6-25%; and the nickel and the molybdenum exist in the coexisting form of the Ni2M03N and less oxides. The catalyst prepared by the method is characterized by long service life and good activity and heat stability; the dehydration reaction selectivity is above 99%; the catalyst can increase the conversion rate of dimethyl ether to methanol and the purity of the methanol, well solves the problem that in the process of producing methanol production with sulphate process, the device is corroded and the residual liquid is seriously polluted.
Owner:BAZHOU DONGCHEN IND & TRADE
Preparation method of N-doped Cu-modified nickel-based activated carbon catalyst and application of N-doped Cu-modified nickel-based activated carbon catalyst in nitrocyclohexane hydrogenation reaction
PendingCN111420693AReduce pollutionLow costCatalystsHydrocarbon preparation catalystsCyclohexanonePtru catalyst
The invention discloses a preparation method of an N-doped Cu-modified nickel-based activated carbon catalyst and application of the N-doped Cu-modified nickel-based activated carbon catalyst in nitrocyclohexane hydrogenation reaction. The preparation method comprises the following steps: performing acid modification on activated carbon, taking the modified activated carbon as a carrier, performing N doping and nickel-copper loading at the same time, and applying the obtained N-doped Cu-modified nickel-based activated carbon catalyst to nitrocyclohexane hydrogenation reaction. Cu is used for modification, nickel acetate is used as a nickel source, the cost is low, pollution is small, equipment corrosion is avoided, non-noble metal nickel is used as an active component, melamine and urea are used as nitrogen sources, and activated carbon is used as a carrier, so that the cost can be obviously reduced. The obtained catalyst is used in nitrocyclohexane hydrogenation reaction, the conversion rate of nitrocyclohexane and the selectivity of cyclohexanone-oxime can be improved under relatively mild reaction conditions, and therefore the purpose that high-quality cyclohexanone-oxime is produced through the low-cost catalyst is achieved.
Owner:XIANGTAN UNIV
Preparation of COF-316/CAT-1 composite material and photocatalytic carbon dioxide reduction
ActiveCN113275041AImprove reducibilityOrganic-compounds/hydrides/coordination-complexes catalystsCatalytic reactionsNickel(II) acetateNickel acetate
The invention relates to preparation of a COF-316 / CAT-1 composite material and photocatalytic carbon dioxide reduction. The invention provides a novel COF-316 / CAT-1 composite material to solve the problems of low electron transfer efficiency and poor photocatalytic carbon dioxide reduction efficiency caused by small contact area and no bond connection of two heterogeneous materials in a traditional core-shell composite material. The preparation method comprises the steps of adding COF-316 into a nickel acetate aqueous solution, chelating metal ions by a stirring method, filtering, washing and drying, adding into an aqueous solution of nickel acetate and 2, 3, 6, 7, 10, 11-hexahydroxy triphenylbenzene, and coordinating under a heating condition to form the COF-316 / CAT-1 composite material. The preparation process is simple, and the material compounding efficiency is high. Compared with a traditional core-shell composite material, the composite material provided by the invention has more excellent photocatalytic carbon dioxide reduction performance, and the carbon dioxide reduction rate of the composite material can reach 261.93 [mu] mol.g <-1 >. h <-1 > and is 1.85 times that of the traditional core-shell composite material.
Owner:HARBIN UNIV OF SCI & TECH
Low-temperature CO-SCR denitration Cu-Ni/AC catalyst and preparation method thereof
InactiveCN112316946AImprove denitrification activityNitrogen selectivity is goodGas treatmentDispersed particle separationActivated carbonPtru catalyst
The invention discloses a low-temperature CO-SCR denitration Cu-Ni / AC catalyst which comprises a carrier and active components, the carrier is coconut shell activated carbon (AC), and the active components are copper and nickel oxides. The mass ratio of the copper element to the nickel element to the AC in the low-temperature CO-SCR denitration Cu-Ni / AC catalyst is (0.02-0.1): (0.01-0.05): 1. Theinvention also discloses a preparation method of the catalyst. The preparation method comprises the following steps of: respectively dissolving copper nitrate and a nickel acetate reagent with deionized water to obtain a mixed precursor solution, impregnating the coconut shell activated carbon in a formula ratio, and carrying out loading and drying to obtain a primary product; and roasting the dried primary product for 4 hours under the protection of nitrogen at 450 DEG C to obtain the low-temperature CO-SCR denitration Cu-Ni / AC catalyst. The low-temperature CO-SCR denitration Cu-Ni / AC catalyst disclosed by the invention has the characteristics of high denitration activity, good nitrogen selectivity and wide denitration temperature range. The Cu-Ni / AC catalyst provided by the invention hasthe advantages of simplified preparation process, low energy consumption, good dispersity of active components, environment-friendliness and no pollution.
Owner:KUNMING UNIV OF SCI & TECH
Preparation method of nickel oxide/poly(3,4- ethylenedioxythiophene) compound electrochromic film
The invention relates to a preparation method of nickel oxide / poly(3,4- ethylenedioxythiophene) compound electrochromic film. The preparation method comprises following steps: adding nickel acetate tetrahydrate and urea into absolute ethanol to prepare a reaction solution, putting FTO conductive glass, which has been washed by ultrasonic, into a hydrothermal reactor filled with the reaction solution, controlling the temperature in the range of 160 and 180 DEG C, maintaining the temperature for 6 to 12 hours, cooling to the room temperature, washing, burning so as to obtain FTO conductive glass with a NiO layer, dissolving 4- ethylenedioxythiophene monomers into a propylene carbonate solution of lithium perchlorate to obtain deposition liquid, then putting the FTO conductive glass with a NiO layer into the deposition liquid to play as a work electrode, taking a platinum slice as the counter electrode, then performing electro-deposition reactions so as the obtain the product. The preparation method has the advantages of simple technology and low cost, structure design in the micro-nano grade of the inorganic / organic compound electrochromic materials can be achieved, so the respective advantages of the organic and inorganic electrochromic materials can be fully utilized.
Owner:DONGHUA UNIV
NiCo/C@CNT double-conductive network hierarchical structure material, and preparation method and application thereof
ActiveCN110669474AEasy to operateLow reaction temperatureOther chemical processesMagnetic/electric field screeningCobalt acetatePhysical chemistry
The invention provides a NiCo / C@CNT double-conductive network hierarchical structure material, and a preparation method and an application thereof. Nickel acetate tetrahydrate and cobalt acetate tetrahydrate which are used as metal sources and 2,5-dihydroxyterephthalic acid which is used as an organic ligand undergo a refluxing reaction at 80-110 DEG C for a period of time in ultrapure water usedas a reaction solvent to obtain orange-yellow precipitate, and the obtained product is centrifuged, washed and dried, and finally is calcined at 500-800 DEG C in an inert atmosphere for 1-4 h to obtain the NiCo / C@CNT double-conductive network wave-absorbing material. The hierarchical structure is formed after carbon nanotubes are generated in situ, so that the NiCo / C@CNT double-conductive networkhierarchical structure material has an excellent electromagnetic wave-absorbing performance as a wave-absorbing material.
Owner:SHAANXI UNIV OF SCI & TECH
Method of making NiO and Ni nanostructures
The alpha form of nickel (II) hydroxide is formed by dissolving a compound of nickel (II), such as nickel acetate, in a water miscible dihydric alcohol (diol), such as ethylene glycol, propylene glycol and suitable oligomers, and adding a suitable base such as sodium carbonate. The α-Ni(OH)2 precipitate is separated from the diol-based mother liquor and dried. This stable α-Ni(OH)2 can be calcined at temperatures in the range of about 573K to about 1073K to form nanometer-size particles of NiO having, for example, fibrous shapes. And the small particles of NiO can be reduced with hydrogen to form small, fibrous nickel particles. Both the NiO particles and Ni particles have utility as catalysts and offer utility in applications requiring electronic and / or magnetic properties.
Owner:DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI +1
Ni (OH) 2 nanosheet sensor for non-enzymatic glucose detection as well as preparation method and application of Ni (OH) 2 nanosheet sensor
ActiveCN113406170ALow priceNo pollution in the processMaterial electrochemical variablesNickel substrateNickel(II) acetate
The invention belongs to the technical field of glucose detection sensor materials, and discloses a Ni (OH) 2 nanosheet sensor for non-enzymatic glucose detection as well as a preparation method and application of the Ni (OH) 2 nanosheet sensor. The method comprises the following steps: dissolving nickel acetate in deionized water to obtain a deposition solution; immersing a foamed nickel substrate into a nickel acetate solution, performing depositing under constant current density to obtain a Ni (OH) 2 nanosheet, and treating the Ni (OH) 2 nanosheet by using argon plasma with constant power to obtain the sensor. The preparation method disclosed by the invention is simple, the Ni (OH) 2 nanosheet is synthesized in one step by utilizing an electro-deposition method, the efficient detection of the glucose concentration is realized, and the performance is further improved through a plasma treatment technology. The Ni (OH) 2 nanosheet is applied to the field of glucose detection, and is high in current response, wide in detection range and good in selectivity.
Owner:SOUTH CHINA UNIV OF TECH
Three-dimensional porous NiO/NF active material, preparation method and application thereof, and device for removing heavy metal ions in wastewater by electrocoagulation method
InactiveCN112142166ALow costSimple and fast operationWater contaminantsWater/sewage treatmentElectrocoagulationNickel(II) acetate
The invention provides a three-dimensional porous NiO / NF active material as well as a preparation method and application thereof. The three-dimensional porous NiO / NF active material takes reticular porous foamed nickel NF as a structural framework, NiO nanosheets vertically grow on the surface of the foamed nickel NF, and no stack exists among the NiO nanosheets. The preparation method comprises the following steps: jointly adding foamed nickel subjected to acid treatment, nickel acetate, urea and ammonium fluoride into a reaction kettle, and carrying out sealed heating reaction to obtain Ni(OH)2 / NF; and subjecting the obtained Ni(OH)2 / NF to a high-temperature heating reaction in an oxygen atmosphere to obtain the NiO / NF active material. The NiO / NF active material can be used as an anode.On the basis, the invention further provides a device for removing heavy metal ions in wastewater through an electrocoagulation method. The wastewater discharged in the industry can be treated in a fixed-point interception mode, a water area polluted by the heavy metal ions can be treated in an intelligent robot treatment mode, and selective fixed-point treatment is achieved.
Owner:TAIYUAN UNIV OF TECH
Technology for producing nickel acetate through ion exchange method
ActiveCN105461542AHigh strengthIncrease contentOrganic compound preparationCarboxylic acid salt preparationIon exchangeNickel(II) acetate
The invention discloses a technology for producing nickel acetate through an ion exchange method. According to the ion exchange method for producing nickel acetate, ion exchange resin, ion exchange columns, glacial acetic acid, alkali and deionized water are involved. The method comprises the production steps of transition, adsorption and elution of ion exchange resin and the like. According to the implementation scheme, the technology route for producing nickel acetate is simple, cost is low, and continuous production can be achieved.
Owner:JIANGXI NUCLEAR IND XINGZHONG NEW MATERIALS
Preparation method and application of NiO hollow nanospheres
ActiveCN112357978ALarge specific surface areaIncrease working temperatureNanotechnologyNickel oxides/hydroxidesNickel(II) acetateNickel acetate
The invention discloses a preparation method of NiO hollow nanospheres, which comprises the following steps: by using biomass pectin as a soft template, carrying out self-crosslinking reaction with nickel acetate, and carrying out subsequent sintering to prepare the NiO hollow nanospheres with the particle size of about 40-60nm, which are assembled by nanoparticles. The material is stable in structure, excellent in H2S gas sensitivity and low in working temperature, the 50ppmsensitivity of the material is 175.9, and the H2S gas sensitivity is far superior to that of reported H2S gas sensors.
Owner:HEIHE UNIV
Phosphorus-doped heterogeneous nickel-cobalt sulfide composite material and preparation method and application thereof
PendingCN112820549AImprove conductivityImprove electrochemical performanceHybrid capacitor electrodesHybrid/EDL manufactureSodium phosphatesThio-
The invention discloses a phosphorus-doped heterogeneous nickel-cobalt sulfide composite material and a preparation method and application thereof. The preparation method comprises the following steps: placing foamed nickel in a methanol-water solution containing cobalt nitrate-surfactant, carrying out hydrothermal reaction, performing cooling, cleaning and drying after the reaction, and calcining the obtained foamed nickel for growing a cobalt precursor to obtain foamed nickel loaded with cobaltosic oxide; putting the foamed nickel into an ethanol solution containing nickel acetate and thioacetamide, carrying out a hydrothermal reaction, and performing cooling, cleaning and drying after the reaction to obtain a heterogeneous nickel-cobalt sulfide nano composite material; and then, putting the nickel-cobalt sulfide composite material at the downstream of an air flow, putting sodium hypophosphite at the upstream of the air flow, performing calcining in nitrogen, and naturally performing cooling to obtain the phosphorus-doped heterogeneous nickel-cobalt sulfide composite material. The material has excellent conductivity and excellent electrochemical performance, and shows excellent cycling stability and relatively high energy density when being applied to a supercapacitor as an active material.
Owner:GUANGZHOU UNIVERSITY
Preparation method for bamboo-like graphene tube/sulfur composite material
InactiveCN110867563AIncrease capacitySimple and fast operationCell electrodesGrapheneGraphene flakeLithium sulfur
The invention discloses a preparation method for a bamboo-like graphene tube / sulfur composite material. The method comprises the following steps of: firstly, evaporating a mixed solution of dicyandiamide, cobalt acetate tetrahydrate, nickel acetate tetrahydrate and ferric nitrate to dryness, carrying out high-temperature roasting reduction at 1000-1200 DEG C under the protection of nitrogen, adding dilute sulfuric acid for corrosion to obtain a bamboo-like graphene tube, mixing the bamboo-like graphene tube with sulfur, and carrying out hot melting sulfur volatilization reaction to obtain thebamboo-like graphene tube / sulfur composite material. The bamboo-like graphene tube is prepared by adopting a high-temperature roasting method; the preparation method is simple and convenient to operate and low in raw material cost, stacking of graphene sheet layers is avoided, the effect of physically constraining polysulfide can be achieved, the surface of the prepared graphene tube contains theiron-cobalt-nickel nanoparticles, the lithiation process of the lithium-sulfur battery can be catalyzed, and the prepared battery has the advantages of being high in capacity, good in rate capabilityand long in cycle life.
Owner:NANJING UNIV OF SCI & TECH
Preparation method of electrochromic nickel oxide film
PendingCN113105127AReduce irreversible aggregationIncreased Optical Modulation RatioColor/spectral properties measurementsNickel(II) acetateNickel acetate tetrahydrate
The invention discloses a preparation method of an electrochromic nickel oxide film, and belongs to the technical field of electrochromic devices and application. The method comprises the following steps: by taking nickel acetate tetrahydrate, tetrabutyl titanate, monoethanolamine, PVP powder and ethylene glycol monomethyl ether as raw materials, preparing a titanium-doped nickel oxide film precursor solution through a sol-gel method; and then spin-coating the titanium-doped nickel oxide film precursor solution on the surface of a substrate, and then carrying out annealing treatment to obtain the titanium-doped nickel oxide electrochromic film. The method is simple and easy to implement, obvious in effect and universal, and has wide application prospects in the field of nickel oxide-based ionic electrochromism.
Owner:GUANGDONG UNIV OF TECH
Preparation method of high-performance cabbage-shaped heterostructure electrode material
ActiveCN112863887ALow electrochemical performanceImprove electrochemical performanceHybrid capacitor electrodesHybrid/EDL manufactureHeterojunctionSodium molybdate
The invention belongs to the field of electrode material preparation, and particularly relates to a preparation method of a high-performance cabbage-shaped heterostructure electrode material. The method comprises the following steps of pretreating foamed nickel, dissolving 2-3 mmol of nickel acetate, 4-5 mmol of cobalt acetate, 2-3 mmol of sodium molybdate, 30-40 mmol of ammonium fluoride and 2-5 g of urea into 60-100 ml of water, stirring, reacting, cooling, cleaning and drying to obtain a prepared sample, dissolving 8-9 mmol of sodium sulfide in 60-70 ml of deionized water, magnetically stirring for 45 minutes, transferring the prepared sample into the solution, transferring into a reaction kettle, keeping the temperature at 80-90 DEG C for 12 hours, naturally cooling to room temperature, cleaning for three times by using absolute ethyl alcohol and deionized water, keeping the temperature of the prepared sample at 60 DEG C for 6 hours, and drying to obtain a finished product. The problems that the material morphology is not uniform, the synthesis method cannot be accurately controlled, the conductivity is poor, and the adhesion with a current collector is poor are solved.
Owner:SHENYANG POLYTECHNIC UNIV
4-formyl benzoic adamantanol ester condensation bromoaniline schiff base nickel complex synthesis and application
ActiveCN105294489AMaterial analysis by electric/magnetic meansImino compound preparationBenzoic acidNickel(II) acetate
The invention discloses 4-formyl benzoic acid adamantanol ester condensation bromoaniline Schiff base nickel complex synthesis and application. Adamantanol, 4-formyl benzoic acid, bromoaniline and nickel acetate are used as raw materials, and finally synthesized into a 4-formyl benzoic acid adamantanol ester condensation bromoaniline Schiff base nickel complex by means of 4-formyl benzoic acid adamantanol ester and 4-formyl benzoic acid adamantanol Claisen bromoaniline Schiff base intermediate. An esterification reaction and a condensation reaction are utilized for synthesizing the 4-formyl benzoic acid adamantanol ester condensation bromoaniline Schiff base nickel complex, and the synthesized 4-formyl benzoic acid adamantanol ester condensation bromoaniline Schiff base nickel complex has high electro-chemical activity and can serve as an electronic medium to be applied to a chemically-modified electrode.
Owner:GUILIN UNIVERSITY OF TECHNOLOGY
Lithium-ion battery NiCrxOy negative electrode material and preparation method thereof
ActiveCN105576234AReduce manufacturing costThe synthesis process is simpleCell electrodesHexamethylenetetramineNickel(II) acetate
The invention relates to a lithium-ion battery NiCrxOy negative electrode material, which comprises NiCrO3 and NiCr2O4, has a spinel structure, is a particle material, and has an average particle size of 100-200 nm. According to the present invention, nickel acetate or nickel nitrate is adopted as a nickel source, chromium nitrate nonahydrate is adopted as a chromium source, a hydrothermal method is used under the condition of a hexamethylenetetramine solvent to prepare a mixed material, the mixed material is dried, and the dried mixed material is subjected to high temperature sintering to obtain the lithium-ion battery NiCrO3 and NiCr2O4 negative electrode material; the preparation method has beneficial effects of simple synthesis process, easy operation, and low material preparation cost; the obtained sample has characteristics of high purity and good crystallinity; the prepared sample is granular, and has a particle size of about 100-200 nm; and the prepared material has characteristics of high capacity and good cycle property.
Owner:CHINA THREE GORGES UNIV
Preparation method of sodium ion transition metal oxide positive electrode material
ActiveCN112510190AWeaken the Jahn-Teller effectImprove structural stabilityCell electrodesSecondary cellsSodium acetateMANGANESE ACETATE TETRAHYDRATE
Owner:徐州浩华能源科技有限公司
Ternary composite electrode material for hybrid capacitor and application of material
ActiveCN112062166AEasy to embedEasy to come outHybrid capacitor electrodesNickel compoundsMANGANESE ACETATEFreeze-drying
The invention discloses a ternary composite electrode material for a hybrid capacitor and application of the material. The ternary composite electrode material is NixVyMnZO2, and a preparation methodof the material comprises the following steps: preparing a nickel acetate-manganese acetate mixed solution and a sodium carbonate-ammonia water mixed solution, dropwise adding the sodium carbonate-ammonia water mixed solution into the nickel acetate-manganese acetate mixed solution, uniformly conducting stirring, conducting standing, discarding the supernatant, conducting centrifugal treating, retaining precipitates, conducting drying and grinding, adding ammonium metavanadate and distilled water, conducting ultrasonic treating at room temperature, conducting quick freeze-drying in liquid nitrogen, conducting grinding again, conducting sintering in a muffle furnace at high temperature, conducting cooling along with the furnace, and conducting grinding and sieving to obtain a product. The preparation method is simple and convenient in condition, easy to control and reasonable in process, vanadium, nickel and manganese oxides are fully dispersed into a system, and the storage of lithiumions is enhanced, so that the electrode performance is improved.
Owner:BOHAI UNIV
Nickel-based metal organic framework derived nitrogen-phosphorus-oxygen co-doped nickel/carbon composite material as well as preparation method and application thereof
ActiveCN112885614AIncrease the reaction areaImprove wettabilityMaterial nanotechnologyHybrid capacitor electrodesCarbon compositesBenzoic acid
The invention belongs to the field of supercapacitor materials, and discloses a nickel-based metal organic framework derived nitrogen-phosphorus-oxygen co-doped nickel / carbon composite material as well as a preparation method and application thereof. The preparation method of the composite material comprises the following steps: dissolving phosphonitrilic chloride trimer and ethyl p-hydroxybenzoate in tetrahydrofuran, performing refluxing at 70-90 DEG C under anhydrous and anaerobic conditions, and carrying out rotary evaporation and performing drying to obtain a ligand precursor; adding the ligand precursor into a mixed solution of an alkaline solution and tetrahydrofuran, performing refluxing at 70-90 DEG C, and carrying out rotary evaporation to remove tetrahydrofuran to obtain a solution A; dropwise adding the solution A into dilute acid to obtain a precipitate, and performing drying to obtain a ligand; adding nickel acetate and the ligand into an organic solvent, and performing stirring at room temperature to obtain a solution B; and performing centrifuging, washing, drying in vacuum, and performing calcining at the temperature of 450-750 DEG C in a protective atmosphere. The composite material has a nano-particle structure and a large specific surface area, solves problems of poor conductivity, poor cycle performance and the like of a nickel-containing electrode, and is simple in method and mild in condition.
Owner:GUANGDONG UNIV OF TECH
Method for preparing regular mesoporous nickel based methanation catalyst
PendingCN107626314AImprove stabilityGood anti-knot effectGaseous fuelsCatalyst activation/preparationPtru catalystMethanation
The invention relates to a method for preparing a regular mesoporous nickel based methanation catalyst. The method comprises the following steps: by taking titanium dioxide and aluminum oxide as a composite carrier, taking nickel oxide as an active ingredient, taking nickel acetate as a nickel source, taking dibutyl phthalate and aluminum isopropoxide as raw materials of the composite carrier, andtaking a block polyether F-127 and a polyoxyethylene-polyoxypropylene-polyoxyethylene triblock copolymer P123 as a composite template agent, preparing uniformly dispersed sol-gel by hydrolysis, aging, and sintering, thereby obtaining the nickel based methanation catalyst with a mesoporous structure. The product is powdered granules and is mixed with raw gas so as to realize rapid methanation, regular mesopores can increase the dispersity and improve heat stability of the catalyst, and the product can effectively resist condensation accumulation in a high-temperature environment produced in the rapid reaction process. The preparation method is easy to operate, simple and rapid in process, reasonable in material ratio, detailed and accurate in data and excellent in product stability and anti-caking property and is a very ideal preparation method of the regular mesoporous nickel based methanation catalyst.
Owner:TAIYUAN UNIV OF TECH
Hydrosilylation reaction catalyst
PendingUS20180200703A1Easy to handleHigh activitySilicon organic compoundsOrganic-compounds/hydrides/coordination-complexes catalystsCyanide compoundPtru catalyst
A hydrosilylation reaction catalyst prepared from: a prescribed transition metal compound such as iron pivalate, cobalt pivalate, iron acetate, cobalt acetate, or nickel acetate; a ligand comprising t-butylisocyanide or another isocyanide compound; and a borane compound, Grignard reagent, alkoxysilane, or other prescribed promoter makes it possible to promote a hydrosilylation reaction under moderate conditions, and has exceptional handling properties and storage stability.
Owner:KYUSHU UNIV +1
A kind of preparation method of two-dimensional nanosheet
ActiveCN108640167BMild preparation conditionsSimple process and energy savingNickel oxides/hydroxidesMANGANESE ACETATENickel(II) acetate
The invention discloses a preparation method of 2D nanosheets. According to the preparation method, ammonium hydroxide is added to a mixed solution of manganese acetate and nickel acetate for a stirring reaction firstly, then an obtained precipitate is subjected to a high-temperature reaction, centrifugal separation, washing and drying, and 2D Mn0.11Ni0.89(OH)2 nanosheets are obtained, wherein thehigh-temperature reaction is performed at 110-130 DEG C. A hydrothermal method is adopted, preparation conditions are mild, and the process is simple and energy-saving. The 2D Mn0.11Ni0.89(OH)2 nanosheets have great application potential in the fields of capacitors, batteries and electrocatalysis.
Owner:安徽佳西电子科技有限公司
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