45 results about "Metal dissolution" patented technology

The invention relates to a water treatment and membrane separation technology, and provides an integrated catalytic separation membrane, a preparation method thereof, and a water treatment method and system. According to the membrane, polyvinylidene fluoride is used as a continuous phase to form a porous matrix, and cerium dioxide is embedded and fixed in a mode of uniform dispersion in a membrane body in a phase inversion membrane forming process; in the presence of illumination and peroxysulfate, active species are generated through in-situ activation on a membrane-water interface, and membrane separation is completed synchronously. The water treatment method comprises the following steps: adding peroxymonosulfate or peroxydisulfate into a water body to be treated, and filtering through the membrane under illumination; the photothermal effect generated by organic matter degradation intermediates in operation inhibits membrane pollution and maintains flux. According to the invention, short-range coupling of active sites and mass transfer channels is realized, the medicament and energy utilization rate is improved, the coating stripping and metal dissolution risk is reduced, and the method is suitable for drinking water pretreatment, reclaimed water deep treatment and treatment of water containing natural organic matters / humic acid.

The invention discloses a tetrathiomolybdate intercalated ternary iron-magnesium-zinc layered double hydroxide catalyst, a preparation method thereof and an application of the tetrathiomolybdate intercalated ternary iron-magnesium-zinc layered double hydroxide catalyst in degrading azo dyes by activating peroxymonosulfate. According to the method, a carbonate intercalated ternary LDH precursor is synthesized through a hydrothermal reaction, interlayer anions are replaced with nitrate and tetrathiomolybdate through ion exchange, and the target catalyst is obtained. In the catalyst, a unique Fe-Mg-Zn ternary metal laminate and a MoS < 2-> intercalation structure cooperatively construct a multi-active center, and MoS < 2-> is used as an electron donor to promote cyclic regeneration of Fe < 3 + > / Fe < 2 + >. The catalyst keeps ultrahigh activity in a wide range of pH (potential of hydrogen) of 3-9, can completely degrade 10 mg / L of acid orange 7 within 5 minutes, and is stable in structure and low in metal dissolution risk. The problems of low activity, slow Fe < 3 + > reduction, metal ion dissolution and the like under neutral and alkaline conditions in an advanced oxidation technology based on peroxymonosulfate are solved, and the method has important application value in the field of printing and dyeing wastewater treatment.

The invention belongs to the technical field of inorganic nano materials and electro-catalysis, and particularly relates to a cobalt-based spinel oxide nano material as well as a preparation method and application thereof. The cobalt-based spinel oxide nano material comprises a conductive substrate and cobalt-based spinel oxide grown on the surface of the conductive substrate, the molecular formula of the cobalt-based spinel oxide is MxCo1-xO4, and M is transition metal or P-region metal and is selected from one or more of titanium, vanadium, chromium, manganese, iron, nickel, aluminum, cerium and neodymium. Multiple metal elements are doped into a cobaltosic oxide lattice, and the intrinsic structure of spinel is not changed by metal doping. Multiple metal elements are highly uniformly dispersed in the material, so that active sites are comprehensively regulated and controlled, the material shows excellent thermodynamic and chemical stability under harsh conditions of high temperature, large current, concentrated alkali and the like, is suitable for various electrolysis modes, has no metal dissolution risk in long-term operation, can effectively avoid the problems of membrane poisoning and membrane degradation, and has good application prospects. Wide application prospects are shown.

The invention relates to the technical field of wastewater treatment, in particular to an iron-based nano-enzyme coupled photocatalytic system and application thereof in organic wastewater degradation, and the iron-based nano-enzyme coupled photocatalytic system comprises the following components in percentage by weight: 10-20% of iron-based nano-enzyme, 15-25% of a modified photocatalyst, 25-35% of a porous carrier, 3-8% of an electron mediator, 1-3% of a pH regulator and 0.5-2% of a rare earth element dopant; the iron-based nano-enzyme is nitrogen-doped iron-copper-cobalt trimetal nano-enzyme, the molar ratio of Fe to Cu to Co is (6: 1: 1)-(8: 1: 1), the doping amount of N is 3-6at%, the particle size is 20-50nm, and the peroxidase activity is 120-150U / mg; the modified photocatalyst is graphene quantum dot-carbon dot co-modified titanium dioxide, the total loading capacity is 2-5 wt%, and the forbidden bandwidth is 2.8-3.0 eV; the porous carrier is a mesoporous silica-carbon nanotube-montmorillonite composite material. According to the invention, the synergistic degradation effect is excellent, refractory pollutants can be decomposed, and no toxic intermediates exist; the catalyst is suitable for high-salt and high-turbidity wastewater with different acidity and alkalinity, is good in stability, can be recycled, and is less in metal dissolution; the energy consumption is low, the operation is simple and convenient, the treated wastewater reaches the standard and can be recycled, and the environmental and economic benefits are remarkable.

The application discloses a method for recycling valuable metals in black powder in waste lithium batteries based on a Na2EDTA-malic acid mixed system, which comprises the following steps: 1) discharging, disassembling, crushing and screening the waste lithium batteries to obtain the black powder; 2) dispersing the black powder in a primary leaching liquid, adjusting the pH value of the primary leaching liquid to 3.0-4.5, and performing leaching in a water bath under stirring conditions, wherein the water bath temperature is controlled to be 50-90 DEG C, and the reaction is performed for 1-4 h, so that the metals in the black powder are dissolved into the liquid phase to form leaching slurry; and 3) performing liquid-solid separation on the leaching slurry obtained in the step 2) to obtain a leaching liquid containing Li, Ni, Co and Mn and leaching residue. The application has small corrosion, is green and environment-friendly, has high leaching efficiency, and is suitable for large-scale application.

The invention relates to the technical field of water treatment, and provides a composite material for water treatment, which comprises: a porous base material; the catalyst layer is formed on the surface of the porous base material; the biological affinity layer is formed on the surface of the catalyst layer; the enhancement layer is formed on the surface of the biological affinity layer, and the enhancement layer is graphene quantum dots. The invention further provides a preparation method of the composite material in the technical scheme and water treatment equipment. According to the composite material provided by the invention, through'metal oxide-biological affinity layer-graphene quantum dot 'ternary synergy, deep coupling of ozone oxidation and biodegradation is realized, the ozone removal rate is increased, the microbial biofilm formation rate is increased, the biofilm formation period is shortened to 3-5 days, and the biofilm density is increased by 30%; and the COD (Chemical Oxygen Demand) removal rate is relatively high. Moreover, the composite material provided by the invention is relatively stable, the metal dissolution rate in a high-humidity environment is less than or equal to 1%, and the service life is prolonged to more than 3 years.

The application relates to the technical field of electrolytic polishing, and discloses a stainless steel cavity surface treatment device with an electrolytic polishing function, which comprises an electrolytic machine and an electrolytic tank arranged on the electrolytic machine, and linear driving mechanisms are arranged on the two sides of the electrolytic machine and extend along the height direction of the electrolytic machine. The stainless steel cavity surface treatment device with the electrolytic polishing function is provided with a pumping pipe at the top end of a limiting pipe and is equipped with a pump body, so that the electrolyte in the stainless steel container can be pumped and circulated, the flowability and the updating speed of the electrolyte on the inner wall of the container are effectively improved, the bubble adhesion is reduced, the problem of uneven metal dissolution caused by slow electrolyte updating is avoided, the generation of surface defects such as pitting, mottling and scratches is reduced, the uniformity of the surface color of the workpiece is ensured, the quality of the electrolytic polishing is improved, and meanwhile, the electrolyte is filtered after being pumped through a return pipe and is then delivered back to the electrolytic tank, so that the electrolyte can be recycled.

The structure is simplified, and the molten metal flows more smoothly, allowing for efficient dissolution and heating. [Solution] The furnace body 10 has heating chambers 12 and 13 that communicate with an input port 11 for non-ferrous metal materials, and a tapping chamber 14 that can receive a portion of the molten metal heated to a predetermined temperature in the heating chambers 12 and 13 and from which the molten metal can be removed, and a rotating blade 20 for circulation that is provided in the center of the heating chambers 12 and 13 to circulate the molten metal, and a plurality of electric heaters 30 and 40 provided in the heating chambers 12 and 13 to raise the molten metal to a predetermined temperature.

The application discloses a lithium ion battery and a preparation method thereof. The positive electrode material contains boron elements, and the distribution amount of the element B meets the following characteristics: the content of boron in the positive electrode material is less than or equal to 20% of the total mass of boron elements, the content of boron elements in the negative electrode is less than or equal to 20% of the total mass of boron elements, and the content of B elements in the electrolyte is greater than or equal to 60% of the total mass of boron elements. The method improves the accumulation orientation of the transition metal layer, improves the charge density distribution of oxygen elements, cooperatively improves the stability of the negative electrode SEI film, reduces the electrolyte consumption and metal dissolution, and improves the mechanical compression resistance.

A composite lithium replenisher, its preparation method, and a secondary battery are disclosed. The composite lithium replenisher includes an active lithium unit and a functional unit. The active lithium unit contains a complexing group; the functional unit contains a self-healing group, which is connected to the active lithium unit. The composite lithium replenisher can self-repair through the self-healing group. This composite lithium replenisher can form a dense SEI film on the positive electrode surface, thereby inhibiting the problem of metal dissolution catalysis and reducing the electrolyte oxidation decomposition rate. The self-healing group can undergo reversible breakage-recombination during charge-discharge cycling, regulating and repairing the damaged SEI film after cycling, making the SEI film more stable, and inhibiting lithium dendrite growth and uncontrolled lithium deposition caused by local polarization. The synergistic effect of both improves the problem of metal dissolution catalysis during the delithiation process of the lithium replenisher, which further exacerbates the SEI film rupture.

The invention discloses a method for extracting metal salts and metals from polymetallic ores or polymetallic materials. The method comprises the following steps: 1) raw material pretreatment: crushing and grinding raw materials into particles; 2) full-wet dissolution extraction: leaching corresponding acid, a corresponding oxidant, a corresponding catalyst and water from the product obtained in the step 1) by using the required metal, stirring and heating to boiling until the required metal in the raw materials is dissolved in the liquid; (3) carrying out solid-liquid separation on the leached product in the previous step, and carrying out mother liquor cooling on the mother liquor subjected to the solid-liquid separation to separate metal elements which can be subjected to alum formation and metal elements which cannot be subjected to alum formation; and (4) sequentially separating out salts of metal elements capable of forming vitriol from the metals capable of forming vitriol according to a sequence from strong vitriol forming capability to weak vitriol forming capability of the metals. The problems that in the prior art, cost is high, and pollution to the environment is large are solved.

The invention relates to the technical field of analysis and detection, and discloses a rapid detection method for low-content silicon in magnesium and magnesium alloy. According to the method, a hydrogen peroxide solution with the concentration of 1-1.2 g / mL and hydrochloric acid with the concentration of 0.54-0.6 g / mL are used for dissolving a silicon-containing magnesium source. The hydrogen peroxide solution enhances oxidability and promotes metal dissolution, the dissolution speed of the sample can be effectively increased, a large amount of salt and new silicon element cannot be introduced into the solution to be detected, the pretreatment of the sample is simple and rapid, and the detection result is accurate; meanwhile, hydrogen peroxide is firstly added and then hydrochloric acid is added, so that the generation of silane is effectively inhibited, and the reaction with impurity ions in a magnesium source can be realized to prevent interference; the hydrogen peroxide is heated, boiled and decomposed at low temperature lower than 280 DEG C, so that the hydrogen peroxide is effectively removed, silicon compounds in the solution are prevented from being evaporated and polymerized, the acidity of the solutions is kept basically consistent, and the detection accuracy is further ensured.

The present application relates to a kind of methods for electrolytic purification of diamond, it relates to diamond purification technical field, the method for electrolytic purification of diamond includes raw material screening step, pretreatment step, electrolytic purification step, separation and purification step, wherein, electrolytic purification step includes the pretreated diamond particles are placed on anode, electrolyte temperature is 40-50 ℃, electrolyte flow rate is at 0.5-1.5 m / s speed to flush the diamond particles, and power electrolysis 8-12 h, current density is 20-30 mA / cm², while electrolysis is carried out ultrasonic treatment, and the ultrasonic frequency is 10-20 kHz, obtain mixed slurry. The diamond obtained by the electrolytic purification method of the present application can realize efficient dissolution of metal, improve metal dissolution efficiency, protect diamond structure and improve diamond purity.

A process of recovering at least one dissolved metal from metals laden water is provided which includes introducing oxygen nanobubbles into the metals laden water, wherein each nanobubble is a size in a range of from 1 nanometer to 900 nanometers; oxidizing the at least one dissolved metal with the oxygen nanobubbles; and precipitating out oxidized metal from the metals laden water for recovering a treated liquid stream and metal particulate. The metals laden water may be for example acid-mine drainage, process streams and wastewaters generated from mining and metals refining operations, process streams and wastewaters generated from metals recycling streams and any other process stream or wastewater generated by an industrial or naturally-occurring process in which metals are dissolved into water.

The present invention provides a metal melting method for a manufacturing process of metal components having a desired shape, using metallic materials unaffected by oxygen and the constituent materials of the crucible. [Solution] In the manufacturing of a metal member, the first step is to prepare a crucible having an opening formed on its bottom surface to control the cross-sectional shape of the metal member to be manufactured; the second step is to bring the bottom surface of the crucible having the opening below the freezing point of the metal material constituting the metal member, thereby creating a melt-containing state in which the molten metal material is contained within the crucible; and the third step is to draw out the molten metal material from the opening in the melt-containing state so that a solid-liquid interface is formed inside the opening, thereby manufacturing a metal member whose cross-sectional shape is the shape of the opening. In this manufacturing method, the melt-containing state is achieved by using high-frequency induction heating to create the molten metal material, and the crucible is a double crucible or a crucible whose entire body is lined or coated with metal.

The invention relates to the technical field of lithium ion batteries, in particular to a positive electrode material and a preparation method thereof, a positive plate, a lithium ion battery and electric equipment. The positive electrode material comprises a spinel lithium nickel manganese oxide matrix material and a coherent coating layer, the coherent coating layer comprises a first coating material and / or a second coating material; the chemical formula of the first coating material is LiALO4, the chemical formula of the second coating material is LiZ0. 5L1. 5O4, A comprises Fe and / or Co, L comprises at least one of Mn, Zr, Ti and Si, and Z comprises at least one of Mg, Zn and Cu. The coherent coating layer has high stability under the high voltage of 5V, can resist erosion of acidic substances in an electrolyte, avoids side reaction with the electrolyte, protects the surface structure of the spinel lithium nickel manganese oxide matrix material, reduces metal dissolution, and improves the specific capacity and the cycle retention rate of the positive electrode material.

Efficiently melts and heats non-ferrous metal materials. [Solution] The furnace body 10 has heating chambers 12 and 13 that communicate with an inlet 11 for non-ferrous metal material, a tapping chamber 14 that can receive a portion of the molten metal heated to a predetermined temperature in the heating chambers 12 and 13 and from which the molten metal can be removed, a circulation pump 20 provided in the heating chambers 12 and 13 to circulate the molten metal, a plurality of electric heaters 30 and 40 provided in the heating chambers 12 and 13 to heat the molten metal to a predetermined temperature, a cylindrical space 80 provided in the circulation path of the molten metal in the heating chambers 12 and 13, with an inlet 81 into which the molten metal discharged from the circulation pump 20 flows in and an outlet 82 formed at different height positions for the flowing molten metal to be discharged, a shaft 85 provided in the cylindrical space 80 and with blades 86 fixed to stir the molten metal inside and extending upward, a swivel device 91 that swivels the shaft 85 together with the blades 86, and a lifting device 92 that moves the shaft 85 up and down together with the blades 86.

This invention provides a straw-based magnesium-iron modified biochar and its industrial wastewater treatment method, belonging to the field of water treatment materials technology. The method includes: S1, mixing and impregnating straw powder with magnesium or iron salt solutions and conducting a hydrothermal reaction to promote metal ion penetration into the fiber interior and pre-complexation with oxygen-containing functional groups, obtaining a deeply modified precursor; S2, pyrolyzing the precursor under a protective atmosphere with limited oxygen, achieving in-situ simultaneous biomass carbonization and metal crystallization, thus firmly anchoring the metal active sites in the generated carbon skeleton. This invention effectively avoids metal agglomeration, endowing the material with a well-developed microporous-mesoporous structure and extremely low metal dissolution rate; it is not only resistant to acid leaching and desorption and has a long cycle life, but also specifically overcomes the "negative removal" defect of primary carbon in phosphorus removal, achieving highly efficient synergistic purification of total phosphorus, COD, and ammonia nitrogen in industrial wastewater.

The invention relates to a sandwich structure foam electrode for anion exchange membrane electrolyzed water and a preparation method thereof. The foam electrode with the sandwich structure has a sandwich type sandwich structure, is represented by a general formula M1M2M1-NC, and is specifically a three-layer foam metal combination body (M1M2M1) which is formed by clamping a foam metal M2 between two foam metals M1 and the surface of which is modified by a nitrogen-doped carbon (NC) material. Compared with the prior art, in the prepared M1M2M1-NC foam electrode with the sandwich structure, the foam metal serves as a structure substrate and a catalytic active site at the same time; the NC coating layer epitaxially grown on the surface can effectively relieve the problem of demetallization dissolution of a catalyst material while optimizing an electron transmission channel, and is beneficial to prolonging the service life of a catalytic electrode; in addition, the catalyst also has the advantages of high catalytic activity, good stability, simple and convenient preparation method, capability of effectively reducing the industrial application cost and the like.

Process for recovering a precious metal from a plating layer. This application relates to a process for recovering a precious metal present in a plating layer covering all or part of the surface of an object, comprising (i) contacting said object with an aqueous solution having a pH of 4 to 11 and comprising from 0.01 mol.L-1 to 1 mol.L-1 of dihydrogen phosphate and / or hydrogen phosphate ions, and from 0.1 mol.L-1 to 2 mol.L-1 of hypochlorite ions, such that at least a portion of the precious metal present in the plating layer dissolves in the aqueous solution, and (ii) separating the solution obtained at the end of step i) from the object, so as to recover, on the one hand, the object, and on the other hand, the aqueous solution containing the precious metal. Figure for abstract: none

The invention discloses a liquid metal dissolved oxygen content control system and method for a negative pressure system. The system comprises a gas distribution chamber, a gas source set, a negative pressure chamber, a gas circulating fan, a liquid metal container and a waste gas treatment system. The gas distribution chamber is connected with the gas source group through a pipeline; the air distribution chamber is communicated with an exhaust valve; the negative pressure chamber is communicated with the gas distribution chamber through a gas inlet pipeline; the negative pressure chamber is communicated with the covering gas space of the liquid metal container through a gas injection pipeline, the gas circulating fan is arranged on the gas injection pipeline, and a gas injection valve is further arranged on the gas injection pipeline; the covering gas space of the liquid metal container is connected with the negative pressure chamber through a pipeline to form a loop; the negative pressure chamber is sequentially connected with the pre-pumping purification device, the vacuum pump and the waste gas treatment system through an exhaust pipeline, and an exhaust valve is arranged on the exhaust pipeline. The liquid metal dissolved oxygen concentration can be accurately regulated and controlled, meanwhile, micro-negative-pressure stable operation of a liquid metal system is maintained, and high safety and reliability are achieved.

The invention discloses a method for strengthening rapid removal of coating metal of a waste plated plate, and belongs to the technical field of solid waste resource utilization. According to the method, the waste plated plate is placed in a composite external field environment of an ultrasonic field, an electric field and a temperature field to be subjected to acid washing or alkali washing, and a plated metal solution and a substrate are obtained. According to the method, the composite external field of the ultrasonic field, the electric field and the temperature field is used for strengthening the plating metal dissolution of the waste plating plate, and the method has the characteristics of simple process, high metal plating dissolution speed, high efficiency, good selectivity, low temperature and the like.

The utility model relates to the technical field of waste metal recovery, and provides a purification mechanism for waste metal recovery, which comprises a treatment tank, a cylindrical filter frame is arranged in the center of the inside of the treatment tank, a filter disc capable of sliding up and down is clamped in the cylindrical filter frame in a sliding manner, and a tank cover is arranged at the top end of the treatment tank. A connecting column is installed between the center of the bottom of the tank cover and the center of the filter disc, an upper port of the cylindrical filter frame is flush with an upper port of the treatment tank and connected with the treatment tank through side supports arranged front, back, left and right, an annular stirring turbine is arranged at the inner bottom of the treatment tank, and a rotary driving part is installed at the outer bottom of the treatment tank. A liquid outlet valve pipe is mounted in the center of the bottom of the treatment tank; stepping cylinders are mounted on the left and right tank walls outside the treatment tank. According to the waste metal recycling and purifying mechanism, key procedures such as metal dissolving, stirring and extracting are effectively integrated, the dissolving speed and the purifying efficiency of metal materials are improved, and waste metal materials can be conveniently placed and cleaned.

The application discloses a kind of for the electrocatalytic reduction CO2 produce multi-carbon product double-atom doped copper-based rare alloy catalyst and preparation method thereof.The catalyst is prepared by selective electrochemical dealloying and metal dissolution-redeposition reconstruction strategy, realizes the construction of multiple active sites of atomic dispersion;The catalyst has three-dimensional continuous nanoporous structure, which is composed of copper matrix and uniformly doped zinc and aluminum double atoms, and shows great potential in the field of energy and environment such as electrocatalytic reduction CO2 to produce multi-carbon product and energy storage.The catalyst with multiple active sites synergistic strategy prepared by the application shows excellent performance, and provides an effective way to improve the performance of CO2 reduction reaction by balancing the kinetics between CO2 activation and H2O dissociation, which has important significance for promoting the utilization of CO2 resources and the development of clean energy technology under the goal of carbon neutralization.

The application provides a porous aluminum carrier catalyst and a preparation method thereof. Mainly, aluminum nitrate and an additive are co-precipitated under the action of a dispersing agent to form an aluminum carrier with uniform distribution, then metal in the pore channel of the aluminum carrier is dissolved by acid etching to form a hole, the additive in the structure of the aluminum carrier is reserved as a synergistic active site, then a ruthenium active component is introduced by impregnation, and finally the corresponding catalyst is obtained after calcination. The dispersing agent increases the dispersity of the aluminum carrier, a porous aluminum carrier is obtained by in-situ use of part of the additive as a sacrificial template, and the additive reserved in the porous aluminum carrier synergistically acts through the limitation of the porous aluminum carrier, so that sintering of the ruthenium active component is avoided.

The present invention is in the field of metal dissolution suitable for biosensing applications. The present invention refers to a method and device for electrochemically controlled decomposition of metal particles using the biochemical properties of halides, which allows in-situ control and is suitable for the detection and quantification of analytes.

A process of recovering at least one dissolved metal from metals laden water is provided which includes introducing oxygen nanobubbles into the metals laden water, wherein each nanobubble is a size in a range of from 1 nanometer to 900 nanometers; oxidizing the at least one dissolved metal with the oxygen nanobubbles; and precipitating out oxidized metal from the metals laden water for recovering a treated liquid stream and metal particulate. The metals laden water may be for example acid-mine drainage, process streams and wastewaters generated from mining and metals refining operations, process streams and wastewaters generated from metals recycling streams and any other process stream or wastewater generated by an industrial or naturally-occurring process in which metals are dissolved into water.

The invention relates to the technical field of batteries, in particular to a nickel-manganese-based positive electrode material and a preparation method and application thereof. The nickel-manganese-based positive electrode material comprises a positive electrode substrate and an interface modification element M3, the positive electrode substrate comprises a lithium nickel manganese oxide substrate and doping elements M1 and M2 thereof, and the positive electrode substrate comprises a rock salt phase and a spinel phase; m1 is an affinity element of a rock salt phase, and the average concentration C1 of M1 in the rock salt phase and the average concentration C2 of M1 in a spinel phase meet C1 / C2gt; 2; m2 is an affinity element of a spinel phase, and the average concentration C3 of M2 in the spinel phase and the average concentration C4 of M2 in a rock salt phase meet C3 / C4gt; 2; and the interface modification element M3 is positioned on the interface and the inner and outer side areas of the positive electrode substrate. The positive electrode material has the characteristics of low metal dissolution, high conductivity, high structural stability and high capacity, and has excellent cycling stability at high temperature and high pressure.

The invention belongs to the technical field of inorganic nano materials and electro-catalysis, and particularly relates to a nickel-cobalt-based spinel oxide nano material as well as a preparation method and application thereof. The nickel-cobalt-based spinel oxide nano material comprises a conductive substrate and a nickel-cobalt-based spinel oxide grown on the surface of the conductive substrate, the nickel-cobalt-based spinel oxide contains nickel, cobalt, iron and manganese elements; the metal doping does not change the intrinsic structure of the spinel, and the spinel phase is still perfectly maintained. Meanwhile, multiple metal elements are highly and uniformly dispersed in the material, so that active sites are comprehensively regulated and controlled, excellent thermodynamic and chemical stability is shown under severe conditions of high temperature, large current, concentrated alkali and the like, the material is suitable for multiple electrolysis modes, no metal dissolution risk exists in long-term operation, the problems of membrane poisoning and membrane degradation can be effectively avoided, and the service life of the material is prolonged. Wide application prospects are shown.

Methods and devices for electrochemically controlled degradation of metals particles using halide biochemistry allowing in-situ control and being suitable for analyte detection and quantification.