46results about How to "Lower potential" patented technology

The invention relates to an aluminum oxide industrial waste residue treatment technology, in particular to a red mud synchronous dealkalization soil treatment method. According to the method, citric acid and calcium nitrate are adopted as treating agents to cooperatively treat the red mud, the sodium content requirement of planting soil is taken as the standard, the red mud is dealkalized to reduce the sodium content, meanwhile, the granularity of the dealkalized red mud is improved, the organic matter content of the dealkalized red mud is increased, and then the dealkalized red mud and normal soil are mixed in proportion to form the dealkalized red mud soil. The physicochemical indexes of the dealkalized red mud soil are as follows: the volume weight is 1.18-1.26 g / cm < 3 >, the organic matter content is 10.6-12.3%, the pH value is 7.2-7.35, the EC is 0.492-0.562 ms / cm, and the specific surface area is 51.49-59.80 m < 2 > / g. The dealkalized red mud soil obtained through the synergistic treatment of the citric acid and the calcium nitrate completely meets the physicochemical properties of the soil and the planting requirements of plants.

The invention discloses a multi-grain-boundary Cu-based catalyst for electrocatalytic reduction of low-concentration CO and a preparation method, and belongs to the field of catalyst preparation, and the preparation method comprises the following steps: (1) dissolving a certain amount of concentrated sulfuric acid, anhydrous cupric sulfate, sodium chloride, gelatin and the like in water at a certain temperature in sequence to prepare an electroplating solution; and (2) placing the electroplating solution in an electrolytic bath, and electrically depositing a certain amount of Cu on the gas diffusion layer under the conditions of certain temperature, voltage and current density by taking the foamy copper as an anode and the gas diffusion layer as a cathode to prepare the catalyst. The gas diffusion layer loaded multi-grain-boundary Cu-based catalyst provided by the invention can be used for efficiently electrocatalytically reducing low-concentration CO (5% CO / N2) under the conditions of normal temperature and normal pressure, reduction products are mainly ethanol, acetic acid and the like, and the total Faraday efficiency of CORR reaches 15.9% when the voltage is-0.83 V (vs.RHE).

The invention discloses a seawater electrolyzed water hydrogen production and energy cascade storage and utilization system which comprises an offshore steel frame platform. A seawater pump, a seawater purification device, a purified water storage tank, a water pump, an alkaline water electrolytic bath, a hydrogen purification and impurity removal device, a hydrogen storage tank, a hydrogen flow controller, a pyrolysis device, a gas purification and impurity removal device, a gaseous carbon dioxide storage tank, a carbon dioxide flow controller and a compressed carbon dioxide energy storage and heat exchange system are arranged on the offshore steel frame platform; the liquid carbon dioxide storage tank is arranged in the seabed below the offshore steel frame platform and connected with the compressed carbon dioxide energy storage and heat exchange system. Offshore wind power, photovoltaic energy and temperature difference energy are utilized for power generation, biomass is adopted for preparing seawater desalination wood and generating carbon dioxide, seawater is electrolyzed into hydrogen, the hydrogen and the carbon dioxide are synthesized and converted into green liquid fuel, and oxygen is used for supplying oxygen to an underwater system.

The invention relates to the technical field of microalgae harvesting, and provides a microalgae harvesting method based on refried oil, emulsified liquid is prepared by mixing the refried oil and Span80, the diameter of emulsified liquid microspheres formed by mixing Span80 serving as an emulsifier is about 20-40 microns, the emulsified liquid microspheres can collide and adhere to microalgae after being in contact with the microalgae, a floating bead-microalgae combination is formed on the outer surface of a floating bead, and the floating bead-microalgae combination is used for harvesting the microalgae. The formed floating bead-microalgae combination is suspended on the upper layer of the mixed liquid, collection of the floating bead-microalgae combination is completed, microalgae flotation is achieved, and the method has the advantages of being high in stability, high in recovery efficiency, low in input cost, low in recovery energy consumption and the like; the use amount of the emulsion is more accurate, the controllability of algae recovery is greatly improved, the use of the refrying oil provides a new thought for recycling waste resources, the problem of pollution caused by discharge of the refrying oil is effectively solved, the use of a chemical flocculant is effectively reduced by a floating bead flotation method based on the refrying oil emulsion, the possibility of secondary pollution of a water body is greatly reduced, and the method is suitable for industrial production. The environment-friendly requirement is met, and the commercialized industrial chain development is further perfected.

The invention aims to provide a preparation method and application of a NiCo-based Prussian blue analogue electro-catalytic material, and belongs to the technical field of nano materials and electrochemical catalysts.According to the Prussian blue analogue NiCo-PBAs / NF catalytic material prepared through a simple coprecipitation method, PBAs nano cube particles are stacked on an NF substrate to form a unique three-dimensional structure, and the Prussian blue analogue NiCo-PBAs / NF catalytic material can be used for preparing the NiCo-based Prussian blue analogue electro-catalytic material. The unique self-supporting nanocube structure is beneficial to mass transfer between active components and a substrate, electrochemical active sites are greatly improved, and chemical reaction energy barriers are reduced. The material can be used as a catalyst for SOR and HER reaction, is applied to hydrogen production by water electrolysis and industrial wastewater and waste gas treatment, and has very high catalytic activity and stability.

The invention relates to the field of battery material recovery, and provides a method for separating and regenerating waste lithium battery cathode graphite, which realizes high-efficiency low-damage separation of copper foil and graphite through a combined process of complex acid ultrasonic separation, anionic flocculant purification and ball-milling roasting, and simultaneously removes metal impurity residues in graphite. The whole process is environment-friendly, energy-saving, simple to operate, high in recovery efficiency and easy to industrially popularize.

The application relates to a scale-inhibiting alloy and a preparation method thereof and a scale-inhibiting sheet manufactured from the scale-inhibiting alloy. The scale-inhibiting alloy comprises the following components: 55wt%-70wt% of Cu, 15wt%-30wt% of Zn, 5wt%-15wt% of Ni, 0.5wt%-3wt% of Si, 1wt%-5wt% of P, 0.001wt%-0.05wt% of a modifying element, and the balance of inevitable impurities, wherein the modifying element is one or more of B, Ti and Zr. The scale-inhibiting alloy adds the Si element for strengthening, so as to improve the mechanical properties and corrosion resistance; the Zn element is added as a negative electrode and the P element is added as a positive electrode, the alloying forms alpha phase+beta phase+multi-element brittle compound phase, can well excite the active current, and prevents the generation of water scale. The scale-inhibiting alloy has low production cost, meets the comprehensive requirements of cost, processing performance, corrosion resistance, mechanical properties, health and market acceptance of water treatment products, and has a good application prospect.

The invention belongs to the technical field of anti-tumor drugs, and particularly relates to application of allicin in preparation of an anti-tumor drug sensitizer and a tumor chemotherapy pharmaceutical composition, an A549 cell strain, a paclitaxel drug-resistant cell model A549 / Taxol and a tumor-bearing mouse model are established, and in-vivo and in-vitro pharmacodynamic research finds that the allicin can effectively inhibit cell proliferation and has a good anti-tumor effect. The apoptosis is induced, and the drug resistance of paclitaxel is reversed. The compound inhibits P-gp expression, reduces drug efflux and destroys cell autophagy. Particularly, allicin inhibits cathepsin B (CTSB), destroys lysosome functions, blocks autophagy flux, reduces mitochondrial membrane potential and enhances sensitivity to paclitaxel. The combination of allicin and paclitaxel can significantly inhibit the growth of tumor nodules and reduce the number of tumor nodules, shows the potential of reversing the drug resistance of paclitaxel in vivo, can significantly improve the chemotherapy effect of NSCLC, and has potential clinical application value.

This invention discloses a low-corrosion chloride molten salt heat transfer and storage medium, method, and application, belonging to the field of molten salt thermal storage technology. The high-heat-capacity, low-corrosion carbonate molten salt heat transfer and storage medium of this invention is composed of 18%~22% potassium chloride, 6%~10% sodium chloride, 1%~3% aluminum powder, 1%~3% magnesium powder, 1%~3% zinc powder, with the remainder being zinc chloride. Its key feature is the introduction of metal powder into the molten salt, which not only achieves excellent thermal storage performance at 600℃~800℃, but also reduces corrosion by utilizing the potential regulation ability of dissolved metal ions and the formation of highly active [Al] from gaseous chloride products through physical and chemical adsorption. This low-corrosion chloride molten salt heat transfer and storage medium achieves excellent thermal storage performance and low corrosivity, and can be applied in solar thermal power generation and molten salt energy storage.

The invention discloses a high-performance stainless steel oxygen evolution electrode and its application. The electrode is prepared by the following steps: step 1: pre-treating the surface of the stainless steel to remove impurities on the surface; step 2: placing the stainless steel treated in step 1 in a chloride solution, using a constant current density method to use the stainless steel as an anode for anodic corrosion for 2 to 5 minutes, and then cleaning and drying the stainless steel to obtain an anodic corrosion stainless steel electrode; wherein the concentration of chloride in the chloride solution is 3 to 5 wt%, and the current density during anodic corrosion is 300 to 500 mA / cm 2 ; Step 3: placing the stainless steel electrode treated in step 2 in an alkaline solution, using the stainless steel as an anode for electrolysis, to obtain the stainless steel oxygen evolution electrode; wherein the concentration of the alkali in the alkaline solution is 1 to 2 mol / L, and the current density during electrolysis is 400 to 600 mA / cm 2 , the electrolysis time is 1 to 3 hours.

The invention discloses a preparation method of a high-cycling-stability biomass charcoal / magnesium composite material negative pole piece, and relates to a preparation method of a biomass charcoal / magnesium composite material negative pole piece. The problems that when biomass charcoal serves as an artificial protection interface of the magnesium metal surface, the circulation stability of a biomass charcoal / magnesium composite material is not high, and a battery is prone to failure in a short time in the working process are solved. The potassium hydroxide and the phosphoric acid are used for carrying out chemical activation treatment on the biomass charcoal, the natural biomass charcoal is subjected to modification treatment, the conjugate structure of the natural biomass charcoal is destroyed, the modified biomass charcoal playing an artificial SEI role in the magnesium ion battery solves the problem that an electrolyte / solvent is difficult to select, and the cycle stability in the working process of the battery is effectively improved. The raw materials are rich in source, the production cost is low, the process is simple, ecological safety is achieved, the performance can be greatly improved through simple modification treatment, and industrial production and application are met.

The present invention belongs to the technical field of magnesium batteries, and specifically relates to a magnesium negative electrode with a polymer protective layer. It is characterized in that the polymer is dissolved and then coated on the surface of the magnesium negative electrode after the oxide film is removed by scraping, spin coating or spraying, and the protected magnesium negative electrode is obtained after drying. The polymer protective layer prevents the direct contact between the magnesium negative electrode and the electrolyte, inhibits the side reactions during the charging and discharging process, reduces the corrosion and passivation of the surface of the magnesium negative electrode, and broadens the electrochemical window of the battery. At the same time, the polymer layer can reduce the magnesium deposition overpotential and improve the reversibility of magnesium deposition by regulating the solvation structure of magnesium ions, so that the magnesium negative electrode can undergo stable magnesium deposition and stripping, thereby improving the cycle life of the battery.

The application discloses the technical field of electroplating wastewater treatment high-value metal recovery system for electroplating wastewater, including electrolytic cell and electrolytic mechanism, electrolytic cell is connected with infusion tube, infusion tube is connected with electronic flowmeter, electrolytic cell top is detachably connected with cover body, cover body is provided with observation ring groove, cover body is fixedly connected with camera unit; The inside lower side of the electrolytic cell is provided with a sedimentation plate and a stirring unit, the sedimentation plate is in sliding fit with the inner side wall of the electrolytic cell, the bottom of the electrolytic cell is fixedly connected with a first weighing sensor, and the detection end of the first weighing sensor is in abutment with the bottom of the sedimentation plate; The electrolytic mechanism includes a controller, a driving unit, an adjusting unit and an electrolytic unit. The application reduces the generation of concentration polarization and activation polarization phenomenon in the process of electroplating wastewater metal treatment and recovery, recovers the wastewater metal in an efficient state, estimates the treatment and recovery effect of the wastewater metal, and improves the qualified rate of wastewater metal treatment and recovery.

The present invention discloses a methoxylated glabridin analogue, a preparation method and an application thereof. Experiments have shown that the methoxylated glabridin analogue MG01 has a dual-target agonist effect on ERβ / PGC-1α. In addition, MG01 has a good effect in treating Aβ 1‑42 In the constructed mouse hippocampal neuron cell HT-22 model, the cell activity damage can be significantly reduced. Methoxylated glabridin analogue MG01 inhibits Aβ 1‑42 MG01 can reverse the Aβ-induced decrease in mitochondrial membrane potential, increase in reactive oxygen species, and mitochondrial damage. 1‑42 The protein expression levels of induced mitochondrial biogenesis-related proteins PGC‑1α, NRF2, and TFAM indicate that MG01 activates ERβ / PGC‑1α, improves reactive oxygen species and mitochondrial function in cell models, exerts a neuroprotective effect, and thus prevents and treats Alzheimer's disease in women.

The invention relates to the technical field of electrochemistry, in particular to a composite anode and a preparation method and application thereof. An active oxygen evolution material and lead powder are mixed to obtain mixed powder, the mixed powder is laid on a substrate plate, the substrate plate is a lead polar plate or a metal plate grid, an isostatic pressing method or a hot pressing method or a spark plasma sintering method is adopted, the mixed powder is die-cast on the surface of the substrate plate, and the composite anode is obtained. The compact and stable ceramic surface is constructed on the surface of the substrate plate, generation of anode mud in the electrolysis process is reduced, then the tank cleaning frequency is reduced, and in the subsequent plate scraping process, an existing film layer structure cannot be damaged. The composite anode is suitable for the electrolytic process of electrolytic manganese, electrolytic zinc and electrolytic copper, and is also suitable for electrocatalytic degradation of organic matters in organic wastewater. Compared with a traditional lead anode plate, the composite anode does not generate anode mud in the electrolysis process, the service life is longer, and the potential of an oxygen evolution electrode is lower.

The invention belongs to the technical field of switching power supplies, and particularly discloses a level shift circuit for a switching converter, which is characterized in that the input end of a sampling input unit is connected with the grid electrode of an upper power tube in the switching converter, and the output end of the sampling input unit is connected with the input end of a speed increasing unit and the input end of a sampling output unit; the output end of the speed increasing unit and the output end of the sampling output unit are connected with the input end of the level input unit. The output end of the level input unit is connected with the input ends of the voltage limiting module, the anti-interference module and the level output unit. The voltage sampling module and the level input unit work at a high power rail, and the voltage limiting unit, the anti-interference unit and the level output unit work at a low power rail. The high-voltage level converter can operate in a high-voltage environment, realizes level conversion from a high-voltage domain to a low-voltage domain, and also has the characteristics of high speed, low power consumption and interference resistance. The method is suitable for level conversion from a high-voltage domain to a low-voltage domain.

The application discloses a small-molecule peptide and application, relates to the technical field of bioactive peptides, and aims to provide a new anti-inflammatory small-molecule peptide. The amino acid sequence of the small-molecule peptide is phenylalanine-leucine-leucine-proline-arginine (FLLPR). The application can significantly inhibit the overproduction of NO and ROS in macrophages induced by lipopolysaccharide, effectively reduce the release of proinflammatory cytokines interleukin-6 and interleukin-1 beta, and can be used for preparing a medicine for preventing, relieving or treating inflammation induced by lipopolysaccharide.

The invention belongs to the technical field of biological medicines, and particularly relates to a bisphenol compound for inducing ferroptosis and application thereof. According to the invention, HCC cells are treated by TMBPS, and lipid peroxide, Fe < 2 + >, malondialdehyde, reduced glutathione or oxidized glutathione, and mitochondrial morphology and potential in the HCC cells are detected. Target spots of TMBPS are predicted through a molecular docking method, and verification is carried out through quantitative real-time polymerase chain reaction, western blot and cell heat transfer experiments. The result of the embodiment shows that the TMBPS can induce ferroptosis of the HCC cells by increasing the levels of lipid peroxide, Fe < 2 + > and malondialdehyde in the cells and reducing the ratio of reduced glutathione or oxidized glutathione and the mitochondrial potential at the same time, and furthermore, the cell death triggered by the TMBPS in the HCC cells is related to ferroptosis and is mediated by inhibiting SLC7A11 expression.

The invention discloses a pterostilbene-modified cyclometal iridium (III) complex and a preparation method and application thereof. The cyclometal iridium (III) complex modified based on the natural product pterostilbene has good fat solubility, tumor cell uptake ability and anti-tumor cell proliferation ability, can effectively inhibit tumor cell proliferation, induce ROS generation, reduce mitochondrial membrane potential and induce tumor cell autophagy, thereby having good anti-tumor activity; therefore, the cyclometal iridium (III) complex of the invention has a better effect than cisplatin drugs under the premise of small toxic and side effects; based on the ability of the complex of the invention to inhibit tumor cell proliferation, damage tumor cell mitochondrial function and induce tumor cell autophagy, it has broad application prospects in the preparation of anti-tumor drugs and anti-tumor drug components.

The invention relates to the technical field of battery formation processes, in particular to a 2V high-magnification lead-acid storage battery formation method, which comprises the following steps of: putting a lead-acid storage battery which is quantitatively injected with acid into a constant-temperature water bath of which the temperature is controlled at 30-40 DEG C, and then performing formation, namely standing for 1 hour at the current of 0A; constant-current charging: the charging current is 0.05 CA, and the charging time is 4 hours; gradient charging: the charging current is gradually increased from 0.15 CA to 0.20 CA, and the charging time is 12 hours; charging and discharging for multiple times by adopting a gradient current value; installing an exhaust valve, and testing related indexes of the lead-acid storage battery; according to the formation method of the 2V high-magnification lead-acid storage battery, the difference between the batteries is balanced, the voltage and the internal resistance between the batteries are balanced, and the formation period is only 62 hours.

Methods and apparatus are described that support efficient handover of data paths corresponding to communication sessions between different non-3GPP access networks, such as networks including WiFi access points, using network core functions. The present invention describes a novel enrollment process that exchanges UE and AMF capability information at an early stage in the enrollment process. An initial registration request message from a UE over a 3GPP or N3GPP access network may, but does not need to indicate whether the UE supports path switching for MA PDU sessions between N3GPP access paths. A registration accept message sent to the UE identifies an access and mobility management function (AMF) selected to support a first UE communication session, and includes AMF path switch capability information indicative of a path switch support capability of the identified AMF, such that the UE is aware of path switches supported by the AMF.

The invention discloses a flyback double-tube voltage conversion circuit, which comprises a primary circuit, a secondary circuit, an auxiliary circuit and a double-tube flyback transformer, and is characterized in that the double-tube flyback transformer comprises a double-tube flyback circuit, a primary winding and a secondary winding; by arranging the primary side circuit, the secondary side circuit, the auxiliary circuit and the double-tube flyback transformer, the auxiliary circuit can increase the potential of the first end of the primary side winding and reduce the potential of the second end of the primary side winding before the primary side winding is charged, so that the voltage between the first electrode and the second electrode of a power switch tube in the primary side circuit can be adjusted; therefore, the voltage between the first electrode and the second electrode is close to 0 before the power switch tube is conducted, thereby facilitating the realization of soft switching. Meanwhile, the double-transistor flyback circuit in the double-transistor flyback transformer has the advantages of being high in conversion efficiency, low in requirement for voltage resistance of a power switch tube and the like, and therefore the double-transistor flyback transformer can be well suitable for application scenes with high input voltage.

The invention relates to an MOSFET device based on F ion gate modulation and a preparation method thereof. The device comprises a substrate layer, a first N-type GaN layer, a second N-type GaN layer, a P-type GaN layer and a third N-type GaN layer which are sequentially arranged from bottom to top. The gate groove extends into the second N-type GaN layer from the two ends of the upper surface of the third N-type GaN layer; the side, close to the third N-type GaN layer, of the gate groove is a gate region, and the side, away from the third N-type GaN layer, of the gate region is a modulation region. The gate structure extends to the gate region from the upper surface of the third N-type GaN layer; a source recess; a source electrode; a drain electrode; and the F ion implantation region is located in the modulation region and extends into the second N-type GaN layer from the bottom of the gate groove. The F ion injection region is arranged in the modulation region, electrons on the surface of the third N-type GaN layer are exhausted, the electric field concentration phenomenon of the device is relieved, the breakdown voltage of the device is improved, and the voltage resistance of the device is ensured.

The invention discloses preparation and application of ROS (reactive oxygen species) sensitive liposome nanoparticles (Quu-NPs) for mitochondrial delivery of quercetin. DSPE and PEG2000 are used as main framework materials of the functional liposome, an ROS response group TK-COOH and a mitochondrial targeting molecule TPP-COOH are introduced to prepare the functional liposome, and the functional liposome, soybean lecithin and cholesterol are used as a shell of the liposome according to a proper proportion to wrap a lipophilic component quercetin. The material has good biocompatibility and fat solubility, the bioavailability and solubility of the quercetin can be effectively improved, the quercetin is enriched in mitochondria, controlled release of the quercetin is achieved according to the ROS level, the peak valley phenomenon and toxic and side effects of systemic administration are avoided, and the mitochondrial dysfunction resistance of the quercetin is effectively enhanced.

The invention belongs to the technical field of medicines, and particularly relates to preparation of an HA-PEI-miR-146a nano composite material and an anti-inflammatory application of the HA-PEI-miR-146a nano composite material in periodontal treatment. The invention designs a preparation method of a HA-PEI-miR-146a composite material, the HA-PEI-miR-146a composite material utilizes the characteristics of weakening potential, easy endocytosis, good stability and targeting property, low toxic and side effects, high biocompatibility, reduction of phagocytosis of an in-vivo immune system and the like of HA-PEI, and the HA-PEI-miR-146a composite material is combined with miR-146a with an anti-inflammatory effect, so that the HA-PEI-miR-146a composite material is prepared. And the cell permeability of the miR-146a is improved by virtue of the HA-PEI. Finally, the HA-PEI-miR-146a nano composite material disclosed by the invention has the advantages of easiness in transfection and good transfection effect, so that the miR-146a plays a role in inhibiting inflammation in periodontal clinical treatment.

The invention relates to an electrolyte for a lithium metal battery as well as a preparation method and application of the electrolyte, belongs to the technical field of lithium metal batteries, and particularly relates to a Gemini quaternary ammonium salt additive which takes a carbon-carbon double bond or a carbon-carbon triple bond as a bridging group and is applied to the electrolyte for the lithium metal battery. The Gemini quaternary ammonium salt additive containing bridging groups which are carbon-carbon double bonds or carbon-carbon triple bonds is used, additive molecules can be adsorbed on the surface of dendritic crystals, growth of the lithium dendritic crystals is inhibited, the risk of short-circuit failure of the battery is reduced, and the service life of the battery is remarkably prolonged.

The present invention relates to the field of semiconductor technology, and specifically discloses a power semiconductor device, including a semiconductor substrate, which is divided into a cell area and a terminal protection area, wherein the semiconductor substrate includes a first conductive type substrate and a first conductive type epitaxial layer, and a second conductive type body area is arranged on the surface of the first conductive type epitaxial layer; a first type of groove is arranged in the second conductive type body area located in the cell area, and the bottom of the first type of groove extends into the first conductive type epitaxial layer; at least one second type of groove is arranged in the second conductive type body area located in the terminal protection area near the cell area; the groove depth of the second type of groove is less than the groove depth of the first type of groove, and the groove opening width of the second type of groove is less than the groove opening width of the first type of groove. The present invention also discloses a method for manufacturing a power semiconductor device. The power semiconductor device provided by the present invention improves the withstand voltage reliability of the power semiconductor device.

The invention discloses a method for regulating and controlling dissolved oxygen and potential dechlorination through cooperation of ultrasonic waves and a sulfite solution, and relates to the technical field of solution purification and impurity removal. Comprising the following steps: dissolving sulfite with deionized water to obtain a sulfite solution; respectively heating the sulfite solution and the chlorine-containing solution to be treated; after heating is finished, slowly adding the sulfite solution into the chlorine-containing solution to be treated at a constant speed, stirring and reacting, and simultaneously adopting ultrasonic wave for synergistic reaction; after the reaction is finished, carrying out vacuum filtration to obtain filtrate and filter residues; copper ions in the solution are reduced into cuprous ions by the sulfite ions, and cuprous chloride precipitates are generated by the cuprous ions and chloride ions, so that the removal of chlorine is realized. The dissolved oxygen content and the oxidation-reduction potential of the system are reduced by means of ultrasonic synergistic enhancement, temperature rise and the like, and cuprous chloride is prevented from being dissolved inversely while the reducing capacity of the sulfite solution is enhanced. Ultrasonic waves play multiple roles in the process, including reaction resistance reduction, mass transfer acceleration, reaction temperature maintenance, reaction interface updating and the like.

The invention discloses a self-supporting FeCo alloy phosphide electrocatalyst as well as a preparation method and application thereof. The preparation method of the electrocatalyst comprises the following steps: S1, pretreating a conductive substrate; s2, preparing a FeCo precursor stacked by an iron-cobalt hydroxide from the conductive substrate, an iron source and a cobalt source through a hydrothermal method; and S3, performing chemical vapor deposition on the catalytic base layer by using a phosphorus source to prepare the self-supporting FeCo alloy phosphide electrocatalyst, wherein the self-supporting FeCo alloy phosphide electrocatalyst is in a nano sheet shape or a pine needle shape. The catalyst has the advantages of low overpotential, good stability, low cost, simple preparation method and the like.

The invention discloses a coating anode of a perovskite intermediate layer, the surface of the coating anode is usually subjected to oxidation reaction, the coating anode can be applied to the field of electrolytic manufacturing, coating titanium anodes with different purposes are formed according to different coating components, and particularly relates to the coating anode of the perovskite intermediate layer. The electrode needs to be subjected to the working procedures of machining, surface treatment, key middle layer coating, active coating coating and sintering and the like, and the titanium anode capable of achieving different purposes such as electrolytic copper foil production and electrolytic chlorine production is finally obtained. Compared with the design of a traditional anode, the compact oxide film is constructed between the active catalytic layer and the substrate, and the preparation method has the advantages that the preparation method is simple, a thermal decomposition method is used as a basis, complicated and precise equipment is not needed, and the production cost is low; the structure is tightly combined with the base material and the catalyst layer, the adhesion is good, and the actual service life is long; the conductivity is good, the chemical corrosion resistance is high, and the corrosion of electrolyte to a base material is prevented, so that low potential is realized.