152 results about "Redox Activity" patented technology

The invention discloses injectable hydrogel with redox activity and electroactivity as well as a preparation method and application of the injectable hydrogel, and belongs to the technical field of medical materials. The preparation method comprises the following steps: reacting methacrylic anhydride and polysaccharide molecules in a solvent to prepare a double-bond functional polymer; the preparation method comprises the following steps: firstly, pre-polymerizing dopamine in a solvent, and then adding MOF (Metal Organic Framework) to carry out polymerization reaction, so as to prepare dopamine modified MOF; reacting the dopamine modified MOF, EDOT and ferric salt in a solvent, and collecting the precipitate to prepare a nano filler; the preparation method comprises the following steps: jointly dispersing the double-bond functional polymer, active polypeptide, a photoinitiator and nano filler into a solvent, and carrying out photocuring cross-linking. The preparation condition is mild, gel forming is rapid, the method is simple, the prepared hydrogel has injectable performance and conductive performance, catalytic activity of natural enzyme can be simulated, active oxygen removal can be achieved in the early stage of myocardial ischemia, electrical conduction of infarction parts can be enhanced, and effective recovery of cardiac functions can be achieved.

The invention belongs to the field of perovskite solar cells, and particularly relates to application of a bulk phase and interface synergistic passivator in a perovskite solar cell. The invention provides a bulk phase / interface synergistic passivation innovative strategy, molecules with a tricyclic sulfur-nitrogen heterocyclic ring structure are introduced as a synergistic passivator, and defect global repair of each functional layer of a device is realized. The molecular design of the structural derivative taking phenothiazine as the core has the following advantages: skeleton characteristics: a conjugated tricyclic system forms an electron transport network through pi-pi stacking, endows molecules with excellent electron delocalization ability, and effectively regulates and controls carrier kinetics; the thioether group is used for dynamically repairing an ion migration channel through oxidation-reduction activity and inhibiting formation of deep-energy-level defects; and the secondary amine group is used as a hydrogen bond donor for anchoring uncoordinated halide ions and synchronously passivating surface and grain boundary defects.

The invention discloses a supported ozone catalyst for printing and dyeing wastewater treatment and a treatment process, and relates to the technical field of wastewater treatment, the supported ozone catalyst comprises an environmental response type porous medium, an active center and a biological enzyme modification layer; the environment-responsive porous medium is based on poly (N-isopropylacrylamide) grafted and modified mesoporous alumina, the initial aperture of the mesoporous alumina is 10-15nm, the grafting rate of poly (N-isopropylacrylamide) is 12-20%, and an active center is composed of a transition metal active center and quantum dots modified on the transition metal active center. The biological enzyme modified layer is obtained by carrying out deep biological modification on the surface of the catalyst by using laccase with oxidation-reduction activity. According to the invention, an environment-responsive porous medium is constructed by grafting mesoporous alumina with poly (N-isopropylacrylamide), so that the problems that a traditional fixed-aperture catalyst is low in mass transfer efficiency and poor in adaptability to working conditions, and the pollutant release efficiency is difficult to effectively improve under different temperature and pH conditions are solved.

The invention discloses an iron-based layered silicate material for efficiently removing variable-valence heavy metals and water treatment application of the iron-based layered silicate material, and belongs to the technical field of water treatment.The preparation method of iron-containing layered silicate minerals comprises the following steps that ferrous sulfate heptahydrate is dissolved in water, sodium dithionite and sodium orthosilicate are sequentially added, stirring is conducted, and a mixture is obtained; stirring, homogenizing and aging for two hours; the hydrothermal reaction kettle is used for reacting in a high-temperature and high-pressure environment; according to the iron-containing layered silicate mineral material, a unique layered structure similar to natural iron-containing layered silicate minerals and high adsorption performance are reserved, variable-valence heavy metal arsenic in a wastewater solution is synergistically and efficiently removed by means of the oxidation-reduction activity of the iron-containing layered silicate mineral material and induction of generation of Fenton-like reaction, and the iron-containing layered silicate mineral material is obtained. The method disclosed by the invention shows high treatment efficiency, environmental friendliness and remarkable economic benefits, and is expected to exert remarkable environmental benefits in the field of water treatment.

The invention discloses a covalent organic framework with oxidation-reduction activity and a bionic nano-channel structure as well as a preparation method and application of the covalent organic framework, and belongs to the technical field of environmental protection. According to the preparation method, 2, 4-dihydroxybenzene-1, 3, 5-tricarboxaldehyde and 2, 5-bis (allyloxy) terephthaloyl hydrazine are taken as raw materials, a two-dimensional covalent organic framework with oxidation-reduction activity is synthesized, and then a sulfonic acid group with negative charges is covalently grafted, so that a functional material with a bionic nano-channel structure is formed. The material has regular porous channels and rich functional sites, the porous channels provide efficient mass transfer paths and adsorption spaces for uranyl ions, and the functional sites realize specific recognition of the uranyl ions through oxidation-reduction reaction and electrostatic interaction, so that the material shows synergistic advantages of strong selectivity, high adsorption capacity and rapid adsorption kinetics on uranium. The method is simple and low in cost, and the prepared material is clear in structure, good in hydrophilicity, capable of efficiently adsorbing uranyl ions and good in application prospect.

The present application relates to the technical field of electrochemical sensor, and especially to a sludge-based biochar suspension for electrode modification, a preparation method and application thereof, wherein the sludge-based biochar is prepared by taking brewery residual sludge as raw material, and then the ash is removed by HF solution and oxidized by nitric acid solution, so that the sludge-based biochar generates more pores, the specific surface area is improved, and meanwhile, the surface has more functional groups, such as nitro group and carboxyl group, which is beneficial to electrodeposition of CoS with high conductivity and high redox activity on the surface.

The invention relates to the technical field of photocatalysts, and particularly discloses modified bismuth molybdate as well as a preparation method and application thereof. The preparation method comprises the following steps: preparing a homogeneous solution A containing a bismuth source; sO4 < 2-> and a molybdenum source are dispersed in a solvent according to the molar mass ratio of 1: 1-1: 10, and a homogeneous solution B is obtained; uniformly mixing the homogeneous solution A and the homogeneous solution B to obtain a solution C; and carrying out a hydrothermal method on the solution C to obtain the modified bismuth molybdate. By doping SO4 < 2-> into bismuth molybdate, the physicochemical properties of bismuth molybdate are optimized from multiple aspects, the photocatalytic activity of bismuth molybdate is improved, and excellent performance is achieved in the aspect of photocatalytic degradation of tetracycline in actual wastewater. The prepared modified bismuth molybdate not only can efficiently utilize visible light, but also is rich in oxygen vacancies on the surface, has high specific surface area, strong adsorbability and efficient photon-generated carrier separation efficiency, shows strong redox activity, and remarkably promotes pollutant degradation.

The invention relates to the technical field of microelectronic devices, in particular to a single-molecule memristor-rectifier device based on supramolecular assembly and a preparation method thereof. According to the preparation method, the guest molecule B is covalently connected with the tail end of the graphene electrode pair, so that stable and tight interface bonding between the supramolecular functional molecule and the electrode can be ensured; and then soaking the graphene electrode pair connected with the guest molecule B in a solution containing the host molecule A and the guest molecule C to form a supramolecular functional molecule between the graphene electrode pair. The guest molecule C in the supramolecular functional molecule has intrinsic oxidation-reduction activity, and the molecular structure of the guest molecule C can generate a reversible electron gain and loss process, so that controllable and reversible adjustment of charge distribution in the molecule is realized. Under the action of an electric field, through the reversible oxidation-reduction reaction of the guest molecule C, significant changes of intramolecular charge distribution and electron transmission characteristics are triggered, and finally reliable switching of high and low resistance states of the device is achieved.

The invention belongs to the technical field of precious metal recovery, and provides a method for efficiently recovering platinum group metal in a catalyst through photocatalysis and application thereof, and the method comprises the following steps: mixing a waste catalyst crushed material and metal powder, carrying out mechanochemical treatment, adding an acid solution, and reacting to obtain a modified waste catalyst; the modified waste catalyst and the leaching solution are mixed to obtain suspension liquid, then the suspension liquid is irradiated through ultraviolet-visible light for a photocatalytic reaction, filtering is conducted, and platinum group metal leaching liquid and leaching residues are obtained; and regulating the pH value of the platinum group metal leachate, adding an oxidizing agent, and extracting and separating the transition metal chloride by using an extracting agent to obtain the platinum group metal solution. According to the method, the platinum group metal particles are regulated and controlled while mechanical and chemical treatment activation is adopted, so that the platinum group metal particles generate the plasma resonance effect, strong redox active species generated by a photocatalyst under the illumination condition are converted into soluble compounds through complexation, and efficient leaching and recycling are achieved.

The invention relates to the field of sulfide solid-state batteries, and discloses a preparation method of a mixed conducting layer coated sulfide electrolyte and application of the mixed conducting layer coated sulfide electrolyte to an all-solid-state lithium-sulfur battery positive electrode. And carrying out ball milling on the obtained mixed material by using a planetary ball mill according to specific parameters, so as to obtain the sulfide electrolyte with the mixed conductive coating layer. The mixed conductive coating layer can be used as a solid-state lithium-sulfur battery positive electrode conductive additive; contact between the carbon material and the internal electrolyte can be limited, and decomposition of the internal electrolyte is prevented; the Young modulus is lower, so that all the components are in better contact; when being applied to a composite positive electrode of a solid-state lithium-sulfur battery, the composite positive electrode can generate oxidation-reduction activity in a battery charging and discharging process, so that the capacity of the battery is improved; on the basis of the four points, the composite positive electrode electrolyte is favorably inhibited from being decomposed, the interface contact of the solid-state battery is favorably improved, and the capacity of the battery is favorably improved.

The application discloses a kind of detection pesticide water amitraz integrated organic photoelectrochemical transistor sensor construction method.The application is integrated on the same fluorine-doped tin oxide conductive glass chip by laser etching technology to have the gate, source, drain three electrodes of organic photoelectrochemical transistor.In order to improve the activity and stability of grating material, the method of encapsulating Pd NPs in Cu-MOF and pyrolyzing is adopted, and Pd NPs / p-Cu-MOF is formed.Pyrolysis Cu-MOF with three-dimensional MOF structure as active carrier can load more Pd NPs, and the redox active copper metal elements contained therein will cause electron transfer between carrier and Pd NPs, so as to adjust the electronic state of metal active site and improve its catalytic performance.Schottky junction is formed between Pd NPs and p-Cu-MOF, which promotes the separation of electrons and holes.Pd NPs / p-Cu-MOF is used as photoactive gate material, and amino amitraz aptamer with carboxyl on the material is used as recognition element, so as to realize the OPECT sensing detection of ICP.

The invention is suitable for the technical field of environmental governance, and particularly relates to a Fe / Nv-PCN piezoelectric material preparation method, which comprises: in-situ synthesis of a PCN material: roasting urea to obtain the PCN material; synthesis of an Nv-PCN material: in a nitrogen atmosphere, roasting the PCN material to obtain the Nv-PCN material; ferric chloride (FeCl3. 6H2O) and ferrous sulfate (Fe2SO4. 7H2O) are used as iron sources to prepare Fe3O4 nano particles; the preparation method comprises the following steps: loading Fe3O4 nanoparticles on an Nv-PCN material by an in-situ coprecipitation method, cooling to room temperature after the reaction is finished, taking out, washing with deionized water and absolute ethyl alcohol in sequence, and drying in a closed state to obtain the Fe / Nv-PCN composite material. Through the synergistic effect of iron doping and nitrogen vacancy, the piezoelectric property and the catalytic activity are remarkably improved, the electron transmission capacity and the redox activity of the material are enhanced through iron doping, the energy band structure of the material is optimized through nitrogen vacancy, and the piezoelectric effect and the free radical generation efficiency are improved; the material has dual functions of adsorption and catalytic oxidation, and can degrade pollution for a long time.

The present disclosure provides a molecularly imprinted polymer (MIP) selective for a perfluoroalkyl and polyfluoroalkyl substance (PFAS), an article comprising such an MIP, methods of making the same, and methods of using the same. The MIP comprises moieties of a monomer having a first portion for an electrically conductive polymer chain and a second portion comprising a N-oxyl side group for redox activity. The MIP is obtained through polymerization of the monomer in the presence of the specific PFAS as a template. The MIP is configured to be selective to the PFAS for a measurement of a concentration of the PFAS.

The invention discloses application of ferrocenyl conjugated microporous polymers Fc-CMPs in a composite solid propellant and the composite solid propellant, the ferrocenyl conjugated microporous polymers Fc-CMPs are porous organic polymers which take ferrocenyl groups as conjugated functional units and are connected through covalent acetylenic bonds, and the ferrocenyl conjugated microporous polymers Fc-CMPs have excellent thermal stability and permanent porosity, and can be used for preparing the composite solid propellant. The material is solid powder, is insoluble in a traditional organic solvent and does not migrate, and a ferrocene unit serves as a constituent part of a polymer framework and an oxidation-reduction active site and is dispersed in a two-dimensional conjugated network structure of a composite solid propellant. When being used as a burning rate catalyst to be applied to AP decomposition, the ferrocene burning rate catalyst can obviously reduce the high-temperature decomposition peak temperature of AP, and solves the migration problem of a traditional ferrocene burning rate catalyst in a composite solid propellant system. The Fc-CMPs are applied to an AP decomposition catalysis scene for the first time, and a new direction is provided for development of a composite solid propellant burning rate catalyst.

The microorganism strain Pediococcus acidilactici TAK 589 CoccobEst is a new antimicrobial and antioxidant probiotic, CoccobEst inhibits the growth of the enteropathogens L. monocytogenes, E. coli, S. enteritidis, S. typhimurium, S. sonnei, S. aureus, E. faecalis and C. sakazakii, but does not inhibit lactobacilli of natural intestinal microbiota. The strain's antimicrobial properties are enhanced by periplasmic peptidoglycan hydrolases with proteolytic activity. CoccobEst is used as a zootechnieai feed additive to prevent bacterial infections in the gastrointestinal tract of farm animals and pets and to prevent and reduce diarrhea. CoccobEst has highly active antioxidant defense system, increasing the redox activity of glutathione and reducing oxidative stress in cells. Therefore, CoccobEst is used as a food supplement or functional food for humans to prevent bacterial infections of the gastrointestinal tract and to prevent and reduce oxidative stress. In addition, CoccobEst is used as a starter culture in fermentation of vegetables.

Compositions and methods for three-dimensional (3D) printing of a variety of products are described. The composition comprises (i) a photoredox component comprising an electron donor and a redox shuttle, and (ii) one or more photoinert materials. The disclosed compositions and methods related to 3D nanoprinting techniques mainly utilize physical processes of phase separation induced by molecular aggregation from light energy input. The driving force of molecular aggregation comes from a photoredox active component in the vicinity of one or more photoinert materials (e.g., molecules to undergo molecular aggregation). Preferably, the collision between the photoredox active component and one or more photoinert materials provides a general phase separation process. The photoredox active component acts as an active bath, allowing any submerged inert reagent to inherit the active properties of the photosensitizer.

The invention discloses a dual-mode detection kit for highly sensitive detection of ERalpha based on HRP-streptavidin. The dual-mode detection kit comprises the following raw materials: a glassy carbon electrode, 1-AP-CNHs, AuNPs, Sh-Apt, MCH, Bio-Ab, and HRP-streptavidin. The invention successfully constructs an electrochemical detection kit for detecting ERalpha with high sensitivity on the basis of the 1-AP-CNHs / AuNPs composite material. According to the invention, due to the redox activity of HRP-streptavidin, the HRP-streptavidin and H2O2 are subjected to redox reaction to generate a current signal; in addition, hydrogen peroxide can be catalyzed to generate. OH free radicals, and the free radicals can oxidize TMB to generate blue products, so that colorimetric reaction is initiated, and ERalpha can be detected more accurately. The electrochemical-colorimetric dual mode of the 3D 1-AP-CNHs / AuNPs composite material and the HRP-streptavidin for high-sensitivity detection of the ERalpha disclosed by the invention greatly improves the detection accuracy. The kit has the advantages of good selectivity, strong stability, high sensitivity, anti-interference performance, environmental protection and the like.

The invention discloses a sodium-rich positive electrode material, a preparation method thereof and a sodium ion battery, the component of the positive electrode material is represented as NaxM1yFe1 / 3Sb1 / 3O2, and the element M1 is one or more of inactive metal elements without oxidation-reduction activity, such as Li, Na, Mg, Zn, Ca and the like. Wherein 1 < = x < = 4 / 3, 0 < = y < = 1 / 3. The positive electrode material is rich in sodium ions and has a special superlattice structure, a sodium ion battery prepared from the positive electrode material is high in reversible capacity and relatively high in capacity retention ratio, the problem that the capacity of the positive electrode material in the sodium ion battery is not high is solved, and the energy density of the battery is improved.

The present invention relates to a fuel cell / electrolyzer oxygen electrode material, a preparation method and its application, the chemical formula of which is A 1‑x A ′ x B n O 3‑δ , wherein A is one of Pr, Nd, Gd, Ce, Sm, A′ is one or any two of Ba, Sr, Ca, B contains Co and other metals, and the other metals are one or more of Ni, Fe, Nb, wherein 0<x<1, 0.75≤n≤1, 0≤δ≤1. The oxygen electrode material is obtained by dissolving the metal oxide or metal salt in dilute nitric acid, adding a reaction reagent to prepare a precursor solution, and then heating, drying, grinding, and high-temperature sintering. The oxygen electrode material involved in the present invention can be a layered perovskite structure oxide or a composite oxygen electrode material. Alkaline earth metal doping at the A position reduces its cost and enhances its redox activity. At the same time, the introduction of other metals at the B position to reduce the proportion of Co helps to improve thermal expansion matching. It is an excellent low-temperature proton ceramic fuel cell / electrolyzer oxygen electrode material.

The present invention relates to a method for manufacturing a rechargeable high-energy battery having a composite cathode with anion redox activity, wherein the composite cathode contains lithium hydroxide as an electrochemically active component, the lithium hydroxide is mixed and contacted with an electronically or mixed-conductive transition metal and / or transition metal oxide to form an electronically or mixed-conductive network structure, this mixture is applied to a current conductor, and the resulting composite cathode is placed together with a separator, a lithium-conductive electrolyte, and a lithium-containing anode in a battery housing to obtain an electrochemical cell, and at least one initial forming cycle is performed on the electrochemical cell.

The invention belongs to the technical field of electro-catalysis, and particularly relates to a preparation method and application of a carbon dot loaded metal phthalocyanine composite material, and the specific preparation method comprises the following steps: mixing a carbon source, a nitrogen source and a metal salt, carrying out spray pyrolysis to obtain metal doped carbon dots, compounding the metal doped carbon dots and metal phthalocyanine into the carbon dot loaded metal phthalocyanine composite material, and preparing the carbon dot loaded metal phthalocyanine composite material. As a carrier, the carbon dots improve the dispersity of the metal phthalocyanine and prevent the metal phthalocyanine from being gathered, and the conductivity of the carbon dots promotes charge transfer of the metal phthalocyanine in catalysis or sensing; in addition, the electron storage and transfer capabilities of the carbon dots are combined with the redox active center of the metal phthalocyanine, so that the adsorption energy of a reaction intermediate can be optimized, and electron transfer is accelerated, thereby synergistically promoting the catalytic reaction. The preparation method is simple in process and low in cost, and the prepared composite material is regular in morphology and excellent in stability and can be effectively applied to the field of electro-catalysis, such as electro-catalysis nitric acid reduction and carbon dioxide reduction.

This invention belongs to the field of precious metal recycling technology and provides a method for efficient photocatalytic recovery of platinum group metals from catalysts and its application. The method includes the following steps: mixing spent catalyst pulverizer and metal powder, performing mechanochemical treatment, and then adding an acid solution for reaction to obtain a modified spent catalyst; mixing the modified spent catalyst with a leaching solution to obtain a suspension, then irradiating the suspension with ultraviolet-visible light for photocatalytic reaction and filtering to obtain a platinum group metal leaching solution and leaching residue; adjusting the pH of the platinum group metal leaching solution, adding an oxidant, and then using an extractant to extract and separate transition metal chlorides to obtain a platinum group metal solution. This invention employs mechanochemical activation while simultaneously regulating the platinum group metal particles to generate a plasma resonance effect. This invention utilizes the strongly redox active species generated by the photocatalyst under light conditions, which are then converted into soluble compounds through complexation, achieving efficient leaching and recovery.

The application discloses a kind of by mesoporous Fe 0 Nanometer material enhances the method for activity of gallic acid and application thereof.The present application fixes gallic acid (GA) with redox activity in mesoporous zero-valent iron nanoparticles (Fe 0 NPs), and then encapsulated by SiO2 outer layer containing disulfide bond (denoted as Fe 0 @GA-ss-SiO2NPs). With the help of intracellular glutathione, oxygen molecules are activated by electron transfer, and a large amount of O2 ·‑ And H2O2 are spontaneously generated, and the sustained high concentration of Fe 0 Fe 2+ Further catalyzes the decomposition of H2O2, and generates highly oxidized ·OH free radicals. At the same time, GA quinone derivatives produce 1 O2 by Russel mechanism. In vitro cell experiments confirm that the nanometer material can cause cancer cell ferroptosis, and exhibits high-efficiency cancer cell killing effect at ultra-low dose.

The invention belongs to the technical field of electrocatalysis, and discloses a chlorella electrode with redox activity and a preparation method and application thereof. Under a constant potential window, methylene blue, aniline and chlorella are synchronously subjected to electrochemical oxidation to generate free radicals, an electron transport chain between chlorella and methylene blue is constructed through a click reaction, meanwhile, an interpenetrating network structure copolymer is generated in the copolymerization process, and chlorella is wrapped and anchored on the surface of an electrode. According to the method, chlorella can be effectively dispersed, more active sites are exposed, the electron transfer efficiency is improved, and the stability of the electrode is enhanced under the interaction of the three. The obtained chlorella electrode with redox activity has an application prospect in the field of electrocatalytic reduction of carbon dioxide into high-added-value products.

The application provides a preparation method of a specific stoichiometric ratio of O3 type layered sodium ion battery positive electrode material. By finely controlling the ratio of Ni, Fe and Mn, the main redox activity is controlled in a specific electric pair range, the structure stability and the electrochemical performance can be improved, and the phase transition can be effectively inhibited. The performance improvement is attributed to the favorable electronic structure given by the specific component ratio, which promotes the Mn 3+ / Mn 4+ and Fe 2+ / Fe 3+ redox couples to participate in cooperation, thereby expanding the charge compensation window and improving the structure stability. The precursor material is obtained by a simple coprecipitation method, and the obtained material has good consistency and low cost after further high-temperature calcination. The prepared sodium ion battery positive electrode material has excellent performance and is suitable for large-scale production.

The present invention belongs to the field of organic cathode materials for lithium-ion batteries, and particularly relates to a triphenylene ketone-based two-dimensional covalent organic framework material, a preparation method thereof, and an application as a cathode material for lithium-ion batteries. The triphenylene ketone-based two-dimensional covalent organic framework material prepared by the present invention presents a fully conjugated single crystal structure, and is rich in a large number of electrochemically active conjugated carbonyl groups and carbon-nitrogen double bonds, which can provide high-density redox active sites. As an electrode active material in lithium-ion batteries, it exhibits high reversible specific capacity, excellent cycle stability and rate performance, and has potential application value in the aspect of organic electrode materials.

The application discloses a perovskite phase additive, a perovskite thin film, a solar cell and a preparation method, a battery assembly and a power utilization device thereof. The perovskite phase additive comprises a heterometallic substituted polyoxometalate. The perovskite thin film and the perovskite active layer of the solar cell are doped with the perovskite phase additive. The heterometallic substituted polyoxometalate utilizes adjustable energy levels, multi-site coordination and gradient redox activity, can realize the synergistic effect of defect passivation, crystallization regulation and stability improvement of the perovskite thin film, and thus improves the photoelectric efficiency and working stability of the device.

The invention discloses a layered sulfide sodium-ion battery positive electrode material and application, and belongs to the technical field of sodium-ion battery positive electrode materials, the layered sulfide sodium-ion battery positive electrode material comprises a two-dimensional layered compound Na2AgSbS3, and can also comprise a carbon-based material. The preparation method of the two-dimensional layered compound Na2AgSbS3 comprises the following steps: mixing a silver source, an antimony source, a sulfur source and a sodium source, dissolving to obtain slurry, uniformly dispersing the slurry, sealing, heating at 150-180 DEG C for 110-130 hours, and purifying the obtained product to obtain the two-dimensional layered compound Na2AgSbS3. The layered sulfide sodium ion battery positive electrode material disclosed by the invention is excellent in structural stability, rich in intrinsic sodium and high in first efficiency, has high-potential oxidation-reduction activity, is beneficial to rapid transportation of Na < + > due to a layered channel, and is high in electrolyte compatibility and wide in application prospect.

The invention discloses a layered nanosheet Cu4 (OH) 6FCl electrode material and a preparation method and application thereof.According to the layered nanosheet Cu4 (OH) 6FCl electrode material and the preparation method and application thereof, a simple and convenient ion co-deposition method is adopted, NH4F and CuCl2. 2H2O which can be easily obtained are used as precursors to be subjected to a standing reaction to synthesize a three-dimensional Cu4 (OH) 6FCl nanosheet, the 3D porous structure can ensure that redox active sites of the Cu4 (OH) 6FCl electrode material are completely exposed, and the Cu4 (OH) 6FCl electrode material can be used for preparing the three-dimensional Cu4 (OH) 6FCl nanosheet. Ion diffusion kinetics are enhanced, and effective charge storage is increased. Compared with traditional transition metal halides (CuF2 and CuCl2), the cathode of the lithium metal battery based on Cu4 (OH) 6FCl shows excellent high reversible capacity and excellent cycling stability. Meanwhile, the simple and convenient synthesis method used in the invention effectively avoids the use of toxic reagents which are harmful to the environment, saves the cost and is suitable for large-scale production. The method conforms to the development concept of environmental protection, and unification of economic benefits, social benefits and environmental benefits is comprehensively achieved.

The invention provides batteries, e.g., flow batteries, and methods of cycling the batteries that reduce loss of capacity. The loss of capacity of may be mitigated by employing a mixture of redox active species.