55results about "Electrogenerative processes" patented technology

The invention relates to the technical field of electrochemical catalysis, and particularly discloses a preparation method of a cobalt-based catalyst for synthesizing ammonia through electrocatalysis of nitrate. The method comprises the following steps: placing melamine on the upstream of ZIF-67 powder, carrying out two-step temperature-programmed pyrolysis treatment in a high-purity nitrogen protective atmosphere, and naturally cooling to obtain the cobalt-based catalyst which takes rhombic carbon as a substrate and on which Co-NC nanoparticles are anchored. In the prepared catalyst, nitrogen atoms are doped on the surfaces of cobalt clusters to form Co-NC sites, the local electronic structure of cobalt can be accurately regulated and controlled, and the Faraday efficiency and yield of electrocatalytic nitrate reduction synthesis of ammonia are effectively improved.

Systems and methods for generating hydrogen by electrolysis of water using electricity produced using a vortex generator that results in cavitation and implosion processes in a vortex. The vortex generator can produce conditions within the vortex generator that can allow deuterium molecules naturally occurring in water to acquire sufficient kinetic energy to overcome the Coulomb barrier so that their nuclei can get close enough to each other to undergo various nuclear reactions, discharging a large amount of nuclear energy at the microstate, imparting energy to the water, which can be used to drive a turbine to generate electricity, and the resulting electricity can be used at least in part for the electrolysis of water.

The invention relates to the technical field of new energy, in particular to a metal-water battery system capable of storing energy and asynchronously producing hydrogen and oxygen, the metal-water battery system comprises a bifunctional catalyst, an iron deposition / dissolution electrode and an acidic electrolyte, and the metal-water battery system is prepared by the following specific steps: S1, stainless steel such as 304 or 316 is subjected to molten salt electrolysis modification to prepare the bifunctional catalyst, and the bifunctional catalyst has OER and HER catalytic activity; s2, taking the modified stainless steel catalyst as a first anode, taking inert electrodes such as a copper sheet or a titanium sheet as a first cathode, and forming a first electrolysis system with an acidic ferrous sulfate solution; and S3, electrolysis is conducted through the first electrolysis system, oxygen evolution reaction is conducted on the first anode, and metal iron is deposited on the first cathode. According to the metal-water battery system considering energy storage and asynchronous production of hydrogen and oxygen, time-space separation of deposition / dissolution of iron and hydrogen-oxygen precipitation is regulated and controlled through the bifunctional catalyst, and safe energy storage and step-by-step production of hydrogen energy / oxygen are achieved; the method is suitable for renewable energy storage, hydrogen energy preparation and distributed energy supply scenes.

The invention discloses a system and a method for dehydrogenation of methyl cyclohexane by using a fuel cell. The system comprises an electrochemical dehydrogenation power generation unit which takes a solid oxide fuel cell as a reactor and is used for performing an electrochemical dehydrogenation reaction on methylcyclohexane to generate a dehydrogenation product containing toluene and simultaneously generating electric energy; the electrochemical hydrogenation unit takes a proton exchange membrane electrolytic tank as a reactor and is used for carrying out electrochemical hydrogenation reaction on toluene and hydrogen to generate methylcyclohexane; and in the material circulation loop, toluene generated by the electrochemical dehydrogenation power generation unit is at least partially conveyed to the electrochemical hydrogenation unit to serve as a reactant, and methylcyclohexane generated by the electrochemical hydrogenation unit is at least partially conveyed to the electrochemical dehydrogenation power generation unit to serve as a reactant. The electrochemical reaction path is used for replacing traditional thermocatalysis, the reaction efficiency is improved, the energy consumption is reduced, and the system is a green and efficient energy comprehensive utilization system.

The present invention relates to a device for releasing an insecticide suitable for controlling mosquito larvae. The device comprises a reservoir containing a preparation of at least one insecticide having larvicidal properties, wherein the reservoir comprises an outlet for releasing the preparation of the at least one insecticide. The device further comprises a gas-generating cell configured to build up a pressure by means of gas generation, wherein the device is configured such that pressure built up by the gas-generating cell causes movement of the preparation of the at least one insecticide out of the outlet of the reservoir. The invention also relates to method for controlling mosquito larvae, in particular by releasing a preparation of at least one insecticide having larvicidal properties, using a device according to the present invention.

The invention provides an electrolyser system (10) comprising a heat storage unit (14) and an electrolyser (16). The heat storage unit (14) comprises at least one heat source infeed. The electrolyser (16) comprises at least one electrolyser cell (20), a steam inlet and at least one off-gas outlet. The off-gas outlet is connected to the heat source infeed to heat the heat storage unit (14). The heat storage unit (14) is configured to use its stored heat to produce steam for feeding into the steam inlet and for generating electrical power, either one at a time or both at the same time. The invention also provides a system comprising an intermittent or variable electricity source (12) and an electrolyser system (10) as defined above. The intermittent or variable electricity source (12) can be configured to power the electrolyser (16) and to heat the heat storage unit (14) via a heating element, either both at the same time or individually.

A method for manufacturing a semiconductor optical electrode, said method including: a step for forming n-type gallium nitride 12 on a substrate 11; a step for forming indium gallium nitride 13 on the n-type gallium nitride 12; and a step for forming p-type nickel oxide 14 on the indium gallium nitride 13. In the step for forming the p-type nickel oxide, nickel oxide is sputtered in an atmosphere in which oxygen is mixed with a sputtering gas.

Disclosed is a method of dehydrogenation of hydrogen-containing compounds in a reactor comprising a catalytic chamber, an electrochemical chamber, and an H-conductive membrane, comprising dehydrogenating the hydrogen-containing compound to produce hydrogen atom equivalents and oxidizing the hydrogen atom equivalents on the anodic H-conductive membrane. The reaction between the protons and a molten electrolyte in the electrochemical chamber generates water, which is decomposed on a counter electrode producing hydrogen. The hydrogen can be used in hydrogenation reactions. Also disclosed is a method of reducing a substrate, for example, a substrate dissolved or dispersed in the molten electrolyte.

A method and apparatus for generating hydrogen gas by reacting a nanogalvanic alloy with water vapor. The apparatus comprises a water vapor source for supplying water vapor to a reaction chamber containing a nanogalvanic alloy. The nanogalvanic alloy reacts with the water vapor to produce hydrogen.

Herein discussed is an electrochemical reactor comprising a first electrode, wherein the first electrode is liquid when the reactor is in operation; a second electrode having a metallic phase and a ceramic phase, wherein the metallic phase is electronically conductive and wherein the ceramic phase is ionically conductive; and a membrane, wherein the membrane is positioned between the first and second electrodes and is in contact with the first and second electrodes, wherein the membrane is mixed conducting. Also discussed herein is a method of producing hydrogen or carbon monoxide comprising: (a) providing an electrochemical reactor having an anode, a cathode, and a membrane between the anode and the cathode, wherein the anode is liquid when the reactor is in operation and wherein the membrane is mixed conducting; (b) introducing a feedstock to the anode; (c) introducing a stream to the cathode, wherein the stream comprises water or carbon dioxide.

The present invention relates to a system and a process for producing synthetic fuels that are characterized in that they allow a load-flexible mode of operation when using fluctuating energy sources.

The present application relates to an electrochemical system and method for capturing carbon dioxide, regenerating pure carbon dioxide, and / or converting captured carbon dioxide to biomethane, syngas, formic acid, and combinations thereof. More specifically, the present application relates to an electrochemical cell having an air cathode-proton or cation exchange membrane and a non-biological or biological anode in which captured carbon dioxide is reduced to carbonate, which is then regenerated to pure carbon dioxide or transferred to another chemical production module. The regenerated carbon dioxide may be purified, compressed, or stored for later use. The present application includes volatile fatty acids derived from carbohydrate-rich waste. The present application also includes the ability to regenerate caustic absorbers used in initial carbon dioxide capture.

The present disclosure relates to an electrolysis system for generating hydrogen, the system comprising an electrolyzer comprising an electrolyte water inlet, a first gas outlet and a second gas outlet, an electrical generator configured to generate electricity, preferably for the electrolyzer, said electrical generator being connected to the first and / or second gas outlet of the electrolyzer and configured to be powered, at least in part, by gas flow provided via the first and / or second gas outlet, the system further comprising an electrolyte pump for supplying the electrolyzer with electrolyte water, wherein the electrical generator is a motor-generator comprising a first mode for generating electricity and a second mode for using electricity to drive the electrolyte pump.

This invention was developed for the technical field of energy production, in which electricity and hydrogen are of great and growing importance. The only input used to produce electricity and hydrogen is water, and the production process is electrochemical, which occurs in a device that is electrified by the water itself. The process is based on the reaction of hydrogen abstraction from water, accompanied by the formation of hydrogen peroxide or oxygen, which occurs in a humid / aqueous environment that contains two electrical conductors separated, but electrically connected to an electrical circuit, with one conductor having a surface with an acidic nature (CA) and the other conductor with a basic nature (CB) of the substances present on the surfaces of the two electrical conductors.

The invention belongs to the technical field of nitrogen oxide capture, and particularly relates to a device for direct capture-conversion power generation of ppm-concentration nitrogen oxides and application of the device. The device comprises a zinc sheet electrode, an electrolyte and a gas diffusion electrode; the gas diffusion electrode is obtained by coating hydrophobic carbon cloth with electrode slurry; the electrode slurry is formed by mixing an electrode material, conductive carbon and polyvinylidene fluoride in an organic solvent; the electrode material has a structure as shown in a formula (I), in the formula, the value of n is 20 to 100. Compared with the prior art, the problem that a noble metal catalyst adopted by a nitrogen oxide electrochemical reduction technology in the prior art is limited in treatment capacity on low-concentration nitrogen oxide is solved. According to the scheme, a nitrogen oxide direct capture-conversion power generation device is constructed, and effective capture and conversion of NO2 with different concentrations and even ppm-level concentrations can be achieved.

In the present disclosure, a method, device, and system for capturing carbon using the principle of a fuel cell are disclosed. More specifically, the carbon capture device includes an air cartridge into which a gas containing a carbon component flows, a fuel cartridge into which a fuel is injected, a fuel cell stack, a fuel supply line that supplies the fuel between the fuel cartridge and the fuel cell stack, and a control unit, and the fuel cell stack includes an anode part including a fuel electrode where an oxidation reaction of the fuel supplied from the fuel supply line occurs, a cathode part including an air electrode where a reduction reaction of the gas flowing from the air cartridge occurs, and an electrolyte part including an electrolyte that transfers metal ions generated by the oxidation reaction of the fuel between the anode part and the cathode part. Various other embodiments for capturing carbon to generate energy are disclosed.

The invention discloses a method for electrosynthesizing hydrogen peroxide by coupling anode aldehyde oxidation hydrogen production with cathode oxygen reduction, which comprises the following steps: in an electrosynthesis device provided with an anode reaction chamber and a cathode reaction chamber, adding an alkaline electrolyte containing an aldehyde group substance into an electrolytic tank, and carrying out electrocatalytic oxidation reaction at lower voltage. And electrolyte is introduced into the cathode reaction chamber, oxygen is introduced at the same time, and the reaction of oxygen reduction electrosynthesis of hydrogen peroxide is carried out. The anode reaction chamber and the cathode reaction chamber are separated by a polymer ion exchange membrane, and a fuel cell system capable of outputting electric energy is formed by anode low-potential oxidation and cathode oxygen reduction reaction. According to the invention, a reaction substrate containing an aldehyde group is subjected to high-selectivity and high-yield electrocatalytic oxidation at a low voltage into a carboxylic acid compound with a high additional value and generates hydrogen, the cathode synthesizes hydrogen peroxide through an oxygen reduction reaction, and chemicals with high additional values are generated at both the cathode and the anode of the electrocatalytic device; meanwhile, electric energy can be generated.

Disclosed are galvanic cells and methods for treating a molten salt by use of the galvanic cells. The galvanic cell can provide anti-corrosion treatment and improved corrosion resistance via electrochemical and chemical reactions involving a corrosive impurity in a molten salt. Reaction products of the chemical and electrochemical reactions include hydrogen gas that can carry hydrogen isotopes evolved in the molten salt. The system can also include removal of the hydrogen gas from the molten salt and separation and recovery of tritium contained therein.

To provide a water decomposition apparatus in which generated hydrogen is easily collected and which can be simply and compactly constituted as a whole.SOLUTION: A water decomposition device (1) includes an electrolytic bath (5) in which an electrolytic aqueous solution (3) is accommodated, an oxygen generation electrode (9) that is a photoelectrode including an n-type semiconductor layer (7) immersed in the electrolytic aqueous solution (3) in the electrolytic bath (5), and a hydrogen generation electrode (13) including a hydrogen storage alloy layer (11) immersed in the electrolytic aqueous solution (3) in the electrolytic bath (5).SELECTED DRAWING: Figure 1

A dissolvable engineered component fabricated using an aluminum-based nanogalvanic alloy and a method of manufacturing such a dissolvable engineered component.

Herein discussed is a method of co-producing carbon monoxide and hydrogen comprising: (a) providing an electrochemical reactor having an anode, a cathode, and a mixed-conducting membrane between the anode and the cathode; (b) introducing a first stream to the anode, wherein the first stream comprises a fuel; (c) introducing a second stream to the cathode, wherein the second stream comprises carbon dioxide and water, wherein carbon monoxide is generated from carbon dioxide electrochemically and hydrogen is generated from water electrochemically. In an embodiment, the anode and the cathode are separated by the membrane and are both exposed to reducing environments during the entire time of operation.

A method for generating power or producing hydrogen from a carbon source, the method including a chemical conversion step of making, in a chemical conversion unit, a mixture obtained by mixing a solution containing an intermediate medium with a carbon source to react at a temperature at which chemical exergy of the carbon source exceeds chemical exergy in a reduced state of the intermediate medium to reduce the intermediate medium while oxidizing the carbon source, an electrochemical conversion step of bringing the intermediate medium reduced at the chemical conversion step into contact with an anode of a battery structure in an electrochemical conversion unit including the battery structure, and bringing oxygen or air into contact with a cathode of the battery structure to generate power, or bringing water into contact to produce hydrogen, and a reuse step of returning a solution containing the intermediate medium after the electrochemical conversion step to the mixture, and an energy conversion system.

To provide an electrochemical installation operating at high temperatures, for the generation of electricity and / or gaseous compounds or for co-electrolysis, which is not bulky while remaining reliable and easy to operate.SOLUTION: An installation (10) includes a plurality of stacks (14) for carrying out electrochemical reactions, and a heating furnace (16) comprising a chamber (60) configured to receive the stacks (14), and a heating system (62). The installation (10) includes at least one rack (12) including: a self-supporting structure having a plurality of superimposed stages of the stacks (14); and / or a plurality of self-supporting structures defining a plurality of superimposed stages of the stacks (14). The chamber (60) can contain at least one rack (12), and the plurality of the stages of the stack (14) of the one rack or each rack (12) contained in the chamber (60) are configured to be heated together by the heating system (62).SELECTED DRAWING: Figure 2

The application discloses a kind of for Li + Recycled flow battery device and recycling method. The invention puts the waste LiFePO4 solid wrapped by porous PTFE filter membrane on the positive electrolyte side of the flow battery, so that the positive oxidation state electrolyte can penetrate through the filter membrane and fully contact and react with LiFePO4. The electrolyte of the positive electrode is oxidized into Li + And FePO4 by oxidation reaction, the generated Li + Enter the electrolyte and pass through the membrane to the negative side in the form of supporting electrolyte, while the membrane material has strong selectivity to Li + Ensure that other ions cannot pass through the membrane; The electrode surface of the negative electrode of the flow battery is coated with a hydrogen evolution catalyst, and a hydrogen evolution reaction occurs to recover hydrogen, achieving the dual purpose of Li + Recycling and electrolytic hydrogen production. FePO4 produced by the positive electrode and Li + The product obtained by calcination and other means is a new LiFePO4 electrode material and is used in lithium ion batteries.

An electrolyser system and method of electrode manufacture. The electrolyser system may comprise a first vessel in communication with an electrolyser stack, a power supply, an electrode, a separator, a membrane, and a second vessel in communication with the electrolyser stack. The electrode may comprise a catalytic material and a micro-porous and / or nano-porous structure. The method of electrode manufacture may comprise providing a substrate, contacting the substrate with an acidic solution, applying an electric current to the substrate, simultaneously depositing a main material and supporting material comprising a scarifying material onto the substrate, and leaching the scarifying material.

The present invention provides an electrolyzer system (10) comprising a thermal storage unit (14) and an electrolyzer (16). The thermal storage unit (14) comprises at least one heat source inlet. The electrolyzer (16) comprises at least one electrolytic cell (20), a steam inlet, and at least one exhaust gas outlet. The exhaust gas outlet is connected to the heat source inlet and heats the thermal storage unit (14). The thermal storage unit (14) is configured to use stored heat to generate steam for supplying the steam inlet and for generating electrical power, either one at a time or both simultaneously. The present invention also provides a system comprising an intermittent or variable electrical source (12) and the electrolyzer system (10) defined above. The intermittent or variable electrical source (12) can be configured to power the electrolyzer (16) and heat the thermal storage unit (14) via a heating element, either simultaneously or separately.

A fuel cell stack for capturing atmospheric carbon is provided. [Solution] The fuel cell stack includes a fuel electrode to which a liquid or gaseous metal fuel is supplied, an air electrode to which a gas mixture containing carbon dioxide and oxygen is supplied, and an electrolyte portion between the fuel electrode and the air electrode that transfers metal ions generated by an oxidation-reduction reaction of the metal fuel, and is characterized in that a carbon capture product containing a carbon component is generated at the air electrode based on the oxidation-reduction reaction of the gas mixture.

There is provided an electrochemical system for enhanced production of one or more chemicals and / or effects, the electrochemical system comprising an electrochemical cell and one or more assemblies for providing one or more excitations. There is also provided methods for same and methods for producing a magnetically catalyzed electrode. Also provided are kits for assembling, modifying or retrofitting an electrochemical system to incorporate application of excitations.