59results about How to "Strong donating ability" patented technology

The invention relates to a material and technology for storing hydrogen, in particular to a novel metal ammonia borane compound hydrogen storage material and a preparation method thereof. The novel metal ammonia borane compound hydrogen storage material is prepared by taking the mixture of ammonia borane NH3BH3 and metal M or metal hydride NHy as an initial raw material and performing ball milling on the raw material in an inert protective atmosphere or a reactive hydrogen atmosphere. The molecular formula of the novel metal ammonia borane compound hydrogen storage material is MxNH(3-nx)BH3, wherein x is more than 0 and less than or equal to 1, and n is more than or equal to 1 and less than or equal to 3. The mole ratio of NH3BH3 to M or NHy in the phase composition of the raw material is 1-50:1. The preparation method provided by the invention has high efficiency and simple and easy operation. The novel metal ammonia borane compound hydrogen storage material provided by the invention has the advantages of high hydrogen storage capacity, low hydrogen production temperature, fast hydrogen production dynamics, no impurities, no gaseous pollutants and the like and has the application prospective of automobile-mounted hydrogen storage.

The invention provides a novel Michler ketone-cyan organic dye and a synthetic method thereof. The dye derives from Michler ketone, and has the structural formulae which represent Michler ketone-cyan organic dye compounds 1, 2, 3, 4 and 5, respectively. Each molecule of the dye comprises two nitrogen containing groups, namely, the structural feature of double electron-donating groups. Accordingly, the molecules can be oxidized and deacidized easily, and have better capability of donating electrons and the capability of trapping electrons from electrolyte more quickly. The dye extends the design thought of organic photosensitizers, and enriches the research content of dye sensitization solar batteries, thereby having very important significances for improving the photoelectric transformation efficiency of organic solar batteries and reducing the cost of batteries both in theory and practice. The synthetic step is short, the process is simple; the cost is low and the yield is high.

The invention relates to the field of hydrogen storage material and hydrogen production, in particular to a multi-level ammonia borane compound hydrogen storage material and preparation and composite hydrogen release method thereof. The mixture of ammonia borane NH3BH3 and multi-metal hydride M1Mm2nHx is used as the starting material, and the multi-level ammonia borane compound hydrogen storage material is prepared by ball milling or auxiliary heat treatment in an inertia protection atmosphere or reactive hydrogen atmosphere, wherein the molecular formula of the multi-level ammonia borane compound hydrogen storage material is M1mM2n(NH2BH3)x, wherein 0<m<=4, 0<n<=4 and 1<=x<=10; the starting material comprises the phases of NH3BH3 and M1mM2nHx at a molar ratio of (1-10):1. The multi-level ammonia borane hydrogen storage material provided by the invention has obvious advantages of relatively high hydrogen storage capacity, low hydrogen release temperature, no impurity gas pollutant and the like. The composite hydrogen release technology provided by the invention effectively integrates the synthesis reaction and decomposition reaction of the multi-level ammonia borane so that the hydrogen storage system can realize high-capacity and fast hydrogen release in a proper temperature, and has application prospect in vehicular hydrogen storage.

The invention relates to a hydrotalcite-like type iron-promoted nickel-based catalyst for hydrogen preparation through autothermal reforming of acetic acid and a preparation method and provides a high-activity novel catalyst resisting oxidation, sintering and carbon deposition to solve the problem that existing catalysts are inactivated due to the structure change as well as oxidation and sintering of active components of the catalysts in the autothermal reforming process of acetic acid. The chemical component of the catalyst is (ZnO)a(NiO)b(AlO1.5)c(FeO1.5)d, wherein a ranges from 0.75 to 3.25, b ranges from 0.25 to 0.75, c ranges from 0 to 1.0 and d ranges from 0 to 1.0. The Zn-Al type carbonate hydrotalcite-like structure is prepared with a co-precipitation method to serve as a precursor, and an active component nickel and an auxiliary iron are introduced and enter the position of the hydrotalcite-like structure through isomorphous substitution of zinc for nickel and isomorphous substitution of aluminum for iron; a compound oxide obtained through sintering effectively inhibits possible migration, accumulation, oxidation and sintering of the active component nickel under the high-temperature reaction condition, and the activity and the stability of the catalyst are improved.

The invention discloses a vegetable protein friction nano-generator and an application thereof. The friction generator comprises a triboelectric negative layer and a protein membrane. The protein membrane and the triboelectric negative layer are stacked face to face, the respective back surface is adhered or plated with an electrode, or only the back surface of the protein membrane or the back surface of the triboelectric negative layer is provided with a grounded electrode. Protein powder is dissolved in water or an aqueous solution of ethanol, and then a plasticizer is added. The protein isdenatured by heat treatment to acquire a more extended structure required for film formation. Finally, the solvent is evaporated and dried acquire the protein membrane with uniform texture and good transparency and flexibility. The friction generator is used for growth applications of crops. According to the invention, plant protein is innovatively used as a triboelectric material; the friction nano-generator is used as a biodegradable mulch film; a space electric field promoting system is created for agriculture; and the friction nano-generator can be further used for the growth of crops.

The invention relates to a 1,2,3-triazole functionalized N-heterocyclic carbene binuclear nickel compound and a preparation method thereof and belongs to the field of organometallic chemistry. According to the 1,2,3-triazole functionalized N-heterocyclic carbene binuclear nickel compound, 1,2,3-triazole functionalized N-heterocyclic carbene is taken as a ligand, and the mole ratio of N-heterocyclic carbene to nickel is 1 to 1; the 1,2,3-triazole functionalized N-heterocyclic carbene binuclear nickel compound has a molecular structural formula shown in specification, wherein R1 is imidazole or benzimidazole, R2 is one of benzyl, n-butyl and phenyl, and X is either PF6 or BF4. The preparation method of the 1,2,3-triazole functionalized N-heterocyclic carbene binuclear nickel compound is simple, the binuclear nickel carbene compound is stable to air and moisture, and the distance among nickel atoms is relatively short, so that the compound has a metal-metal effect; by using the catalyst, cross-coupling reaction can be efficiently realized, and a variety of biphenyl derivatives can be obtained in the yield of being higher than 90%; the compound has very good functional group compatibility, is environment-friendly and can be extensively applied to fine chemical industry and pharmaceutical industry.

The invention discloses N,N'-diphenyl-N,N'-di(9,9-dimethyl fluorene-2-yl)-N-hexyl-(4,4'-diamine phenyl) carbazole and a synthetic method thereof and belongs to the field of organic synthesis. According to the synthetic method, 2,7-dibromo-carbazole is used as a raw material and subjected to N-alkylation and a Suzuki coupled reaction to synthesize 2,7-di(4-bromophenyl)-N-hexyl carbazole; 2-bromo-9,9-dimethyl fluorene and aniline are used as raw materials and subjected to a Buchwald-Hartwig coupled reaction to synthesize 9,9-dimethyl-N-phenyl fluorine-2-amine; lastly, 2,7-di(4-bromophenyl)-N-hexyl carbazole and the 9,9-dimethyl-N-phenyl fluorine-2-amine are used as raw materials and subjected to a Buchwald-Hartwig coupled reaction to synthesize a target compound. The target compound has good heat stability and glass transition temperature and is suitable for hole transport materials of organic light-emitting devices.

The invention belongs to the field of fine chemical engineering, and discloses naphthalimide two-photon fluorochrome and a preparation method and application thereof. The naphthalimide two-photon fluorochrome is a naphthalimide compound of which the 4-bit is coupled with low molecular weight PEI (polyethyleneimine) and the N-bit is substituted by alkane or aliphatic amine disclosed in the formula. The naphthalimide two-photon fluorochrome has the advantages of two-photon adsorption characteristics, good water solubility, good biocompatibility, small toxicity and short dyeing time, can be used for cell nucleus and lysosome imaging and can realize nonstationary living cell dyeing and imaging, and no leakage phenomena appear when imaging is carried out in a cell.

The invention discloses a lignin-based triaminotriethylamine salt waste incineration fly ash heavy metal stabilizer and a preparation method and application thereof, and belongs to the technical fieldof environmental protection technologies and municipal solid waste incineration fly ash treatment. The relative molecular weight of the stabilizer is 3000-20000, and the stabilizer is specifically lignin-based triaminotriethylamine sodium salt or lignin-based triamino triethylamine potassium salt. The method comprises the following steps: firstly, carrying out oxidative degradation on alkaline lignin, exposing a reaction site, carrying out a Mannich reaction on an oxidized aminating agent and the lignin, inoculating amido to the lignin, wherein a condensation reaction increases the molecularweight and enlarges the chelate ring, and introducing C=S double bonds through an esterifying agent to obtain the lignin-based triaminotriethylamine derivative. The method can effectively reduce the leaching concentration of heavy metals such as Pb and Cd in the fly ash, promotes the conversion of the heavy metals into a form with low biotoxicity, is low in energy consumption, high in heavy metalstabilization efficiency and good in volume reduction effect, and is suitable for industrial application of harmless treatment on municipal solid waste incineration fly ash.

The invention discloses a triphenylamine organic dye with a gradient power supply group. The organic dye has a chemical structural formula shown in the specifications, wherein R is the alkyl group of C1 to C12; Ar1 and Ar2 are aromatic heterocyclic groups of C4 to C20 or aromatic cyclic groups of C6 to C20 which contain S or O; and a triphenylamine compound can be applied to an organic dye-sensitized solar cell serving as a photosensitizer. The triphenylamine organic dye with the gradient power supply group is applied to the dye-sensitized solar cell so as to solve the problem of difficult popularization of a ruthenium-based bipyridyl composition dye sensitizer due to high price. A dye molecule has the structural characteristics of a plurality of power supply groups and gradient power supply, is easy to undergo oxidation and reduction reactions, has high electron supplying capability and can be reduced and regenerated by capturing electrons from an electrolyte. The organic dye has the advantages of easy preparation method, simple process, low cost and contribution to popularization and application.

The invention relates to a nickel-magnesium-chromium mesoporous composite oxide catalyst for auto-thermal reforming of acetic acid to produce hydrogen. The invention aims to solve the problem that inthe prior art, during the acetic acid auto-thermal reforming process, the structure of a conventional catalyst changes, the active components are oxidized and sintered, and thus the catalyst is deactivated, and provides a novel catalyst having the advantages of stable structure, sintering resistance, carbon deposition resistance, oxidation resistance and high activity. The chemical formula of thecatalyst is (NiO)a(MgO)b(CrO1.5)c; wherein a is 0.08-0.12, b is 0.55-0.92, c is 0-0.33, and nickel oxide accounts for 12.0 to 20.0 wt.% of the catalyst, magnesium oxide accounts for 40.0 to 88.0 wt.%of the catalyst, and chromium oxide accounts for 0 to 40.0 wt.% of the catalyst. A catalyst precursor is prepared by a co-precipitation method, chromium is introduced into the catalyst and is taken asan auxiliary agent; after burning, a stable mesoporous composite oxide catalyst, which comprises a MgCr2O4 and NiCr2O4 spinel structure and a Mg-Ni-Cr-O solid solution, is formed; the reducing performance and stability of the active components are enhanced; at the same time, the hydrogen yield of acetic acid auto-thermal reforming, sintering resistant performance, and carbon deposition resistantperformance are all strengthened.

The invention provides a narrow-band gap polymer based on benzobis (thiadiazole) or thiadiazole quinoxaline as well as a preparation method and application of the narrow-band gap polymer. The invention discloses a narrow-band gap polymer based on benzobithiadiazole or thiadiazole quinoxaline. The narrow-band gap polymer is obtained by polycondensation of an electron acceptor and an electron donor or polycondensation of different electron acceptors. The preparation method comprises the following steps: mixing raw materials including an electron acceptor and an electron donor or different electron acceptors and ligands, a catalyst and an organic solvent, and heating to react to obtain a product. The narrow-band-gap polymer can be used for organic light-emitting diodes, polymer solar cells, organic photovoltaics, organic light detectors and photo-thermal conversion devices. According to the narrow-band gap polymer provided by the invention, the special optical and potential electrochemical properties can help to develop better n-type and bipolar polymer semiconductors and conductors.

The invention relates to the technical field of OLEDs and provides a compound with TADF properties, a display panel comprising the compound and a display device comprising the compound. The compound has a structure shown as formula (1), wherein A1 and A2 are used for representing hydrogen atoms, phosphorus-containing oxygen substituent groups, sulfone substituent groups, aryl boron substituent groups and other electron acceptor groups; L1 and L2 are each independently selected from single bond, phenylene group, thienyl group, naphthylene group, anthranylene group, phenanthrylene group, and pyrenylene group; Ar1 and Ar2 are independently selected from hydrogen atoms, phenyl groups, thienyl groups, naphthyl groups, anthryl groups, phenanthrene groups, pyrenyl groups, phosphorus-containing oxygen group substituent groups, sulfone substituent groups, aryl boron substituent groups and other groups. A fused carbazole structure of the compound has very strong electron donating ability and thermal stability. When the fused carbazole structure is used as an electron donor to be combined with an appropriate acceptor material to form a bipolar main body material to be applied to light-emitting layers, good energy transfer can be realized between the bipolar main body material and a dopant, so that the light-emitting efficiency of devices is improved.

The invention relates to a zinc-nickel-zirconium mesoporous composite oxide catalyst for hydrogen production by autothermal reforming of acetic acid. Directed at the problem that catalyst structure change and the oxidation and sintering of active components can cause catalyst deactivation in existing catalysts during the autothermal reforming reaction of acetic acid, the invention provides a new catalyst characterized by stable structure, sintering resistance, carbon deposition resistance, oxidation resistance, and high activity. The chemical composition of the catalyst is (ZnO)a(NiO)b(ZrO2)c,wherein a is 0.60-2.25, b is 0.40-0.75 and c is 1.00. The invention adopts Ni as the active component, uses ZnO and ZrO2 as the carrier, and adopts coprecipitation method to prepare the Ni/ZnO-ZrO 2composite oxide catalyst, which effectively inhibits the formation of ketene, acetone and other by-products in the reaction process, improves the yield and selectivity of hydrogen, and improves the carbon deposition resistance, sintering resistance and oxidation resistance of the catalyst.

A method for accurately and rapidly predicting catalytic active sites of heteroatom-doped amorphous carbon belongs to the technical field of surface catalysis, and comprises the following steps: constructing a heteroatom-doped aromatic carbon cluster model and performing geometric configuration optimization; calculating Mulliken electronegativity x of the heteroatom doped aromatic carbon cluster after geometric configuration optimization by adopting a density functional theory; calculating an electrophilic well function value f-of each carbon atom in the heteroatom-doped aromatic carbon cluster by adopting a wave function analysis method; calculating a ratio f <->/x of an electrophilic Fuji function value of each carbon atom in the heteroatom-doped aromatic carbon cluster after geometric configuration optimization to Mulliken electronegativity; and calculating a reaction path of the primarily screened active site catalytic element, obtaining a free energy barrier according to a calculation result, and screening sites with high catalytic activity. The invention provides a descriptor for accurately predicting the catalytic activity of the amorphous carbon-based catalyst, guides the design and construction of the amorphous carbon-based catalyst, and directly describes the essential process of dynamic electron transfer in the catalytic reaction.

The invention provides a silafluorene-containing aromatic amine compound and an organic electroluminescent device thereof, and relates to the technical field of organic photoelectric materials. The aromatic amine compound containing silicon fluorene has the characteristics of strong electron donating ability, high hole mobility, high glass transition temperature, high thermal stability and low probability of crystallization when heated and cooled. When the compound is applied to a covering layer or a hole transport layer of an OLED device, the light extraction efficiency, the service life and the luminous efficiency of the OLED device can be effectively improved, and the problems of low refractive index, low glass transition temperature, poor thermal stability, easiness in aggregation and crystallization and the like in the existing material can be solved.

The invention discloses a frictional electricity generator based on vegetable protein and a preparation method thereof. The frictional electricity generator comprises a frictional electricity negativelayer and a protein film which are stacked face to face, wherein the back surfaces of the frictional electricity negative layer and the protein film are respectively bonded or plated with an electrode, or only the back surface of the protein film or the back surface of the frictional electricity negative layer is provided with a grounded electrode. The preparation method comprises the following steps: dissolving protein powder into water or an aqueous ethanol solution, then adding a plasticizer, and carrying out thermal treatment until protein is denatured so as to obtain a more extended structure required for film formation; and evaporating a solvent, and carrying out drying so as to obtain the protein film with uniform texture and good transparency and flexibility. According to the invention, the vegetable protein is creatively utilized as a frictional electricity material, and a nanometer frictional electricity generator is used as a biodegradable mulching film, so a space electricfield promoting system is created for agriculture, and is further used for the growth of a crop.