An electrochemical cell for the electrolysis of liquid water or water vapor includes a proton-conducting electrolyte (3) made of aluminosilicate, sandwiched between a porous metal anode (2) and a porous electronic conducting cathode (4). Preferably, the porous metal anode (2) is a sintered stainless alloy comprising at least 18% chromium. Also, a method of manufacturing such a cell includes at least: manufacturing the proton-conducting aluminosilicate electrolyte (3) and deposition of said electrolyte (3) on the porous metal anode (2) by hydrothermal method, and depositing the electronic conducting porous cathode (4) on the electrolyte (3) to form the electrochemical cell (1). The electrochemical cell can be used for, amongst other compounds, the reduction of oxidized compounds, such as the oxidized compounds constituted, for example, by carbon dioxide.

An electrode set for chemical reaction includes a substrate, and electrodes for reduction and oxidation reactions alternately arranged on the same surface of the substrate.

The present invention relates to a two-stage process for production of drop-in fuels/alcohols (methanol, ethanol or butanol) from volatile fatty acids produced either synthetically from fossil resources or as metabolic intermediates in acidification step of anaerobic digestion process from waste biomass and organic materials.

Various embodiments include a method for the partial electrochemical hydrogenation of alkynes of the chemical formula (I) to alkenes,

##STR00001## wherein R and R are selected from inorganic and/or organic radicals, the method comprising: hydrogenating the compound of the chemical formula (I) on a copper-containing electrode.

Electrocatalysts composed of single atoms dispersed over porous carbon support were prepared by a lithium-melt method. The new catalysts demonstrated high selectivity, high Faradic efficiency and low overpotential toward to the electrocatalytic reduction of carbon dioxide to fuels.

The invention is directed to a metal hollow fiber electrode, to a method of electrolyzing carbon dioxide in an aqueous electrochemical cell, to a method of converting carbon dioxide, to a method of preparing a metal hollow fiber, to a use of a metal hollow fiber electrode. The metal hollow fiber electrode comprises aggregated copper particles forming an interconnected three-dimensional porous structure, wherein said metal comprises copper.

A method for generating hydrocarbons using a solid oxide electrolysis cell (SOEC) and a Fischer-Tropsch unit in a single microtubular reactor is described. This method can directly synthesize hydrocarbons from carbon dioxide and water. The method integrates high temperature co-electrolysis of H.sub.2O and CO.sub.2 and low temperature Fischer-Tropsch (F-T) process in a single microtubular reactor by designation of a temperature gradient along the axial length of the microtubular reactor. In practice, methods disclosed herein can provide direct conversion of CO.sub.2 to hydrocarbons for use as feedstock or energy storage.

A method of electrochemically reducing CO.sub.2 to form at least one alcohol, preferably ethanol. The method includes (a) contacting an electrode system with an aqueous solution comprising at least one electrolyte and CO.sub.2, wherein the electrode system comprises a working electrode, a counter electrode, and a reference electrode, wherein the working electrode comprises a base electrode and a coating of a composite comprising graphene nanosheets and Cu.sub.2O nanoparticles disposed on a surface of the base electrode, and (b) applying a negative potential to the working electrode to reduce the CO.sub.2 and form the at least one alcohol.

An organic hydride production apparatus includes: an electrolyte membrane having proton conductivity; a cathode that includes a cathode catalyst layer used to hydrogenate a hydrogenation target substance using protons to produce an organic hydride and also includes a cathode chamber; an anode that includes an anode catalyst layer used to oxidize water to produce protons and also includes an anode chamber; and a gas introduction unit that introduces, into the anolyte at a certain position, a certain gas used to remove at least one of the hydrogenation target substance and the organic hydride that have passed through the electrolyte membrane and been mixed into the anolyte.

Electrochemical cells for the reductive amination of furfural-based molecules are provided. Also provided are methods of using the electrochemical cells to carry out the electrochemical reductive amination reactions. Using the cells and methods, furfural-based molecules can be converted into amines via the conversion of their formyl groups to amine groups.