An electrode, having a catalytic coating containing ruthenium and at least one other element selected from the group of alkaline earth metals, suitable to be used in industrial electrochemical processes for hydrogen evolution and to a method for the production of the same. The catalytic coating has 93-99 wt-% of ruthenium and 1-7 wt-% of alkaline earth metals, referred to the metals.

An electrode, having a catalytic coating containing ruthenium and at least one other element selected from the group of alkaline earth metals, suitable to be used in industrial electrochemical processes for hydrogen evolution and to a method for the production of the same. The catalytic coating has 93-99 wt-% of ruthenium and 1-7 wt-% of alkaline earth metals, referred to the metals.

An apparatus is provided for generating hydrogen and oxygen through alkaline electrolysis. A process is also provided for generating hydrogen and oxygen through alkaline electrolysis using the apparatus. The apparatus and process are advantageously applied in apparatuses and systems for the accumulation of hydrogen using demineralized water and electric energy, also coming from renewable sources.

An apparatus is provided for generating hydrogen and oxygen through alkaline electrolysis. A process is also provided for generating hydrogen and oxygen through alkaline electrolysis using the apparatus. The apparatus and process are advantageously applied in apparatuses and systems for the accumulation of hydrogen using demineralized water and electric energy, also coming from renewable sources.

A reverse water-gas shift catalyst that can be used at a high temperature is obtained, and a production method thereof is obtained. The reverse water-gas shift catalyst is obtained by at least supporting one or both of nickel and iron as a catalytically active component on a carrier containing a ceria-based metal oxide or a zirconia-based metal oxide as a main component, and a ratio of the carrier to the entire catalyst is 55% by weight or more.

A reverse water-gas shift catalyst that can be used at a high temperature is obtained, and a production method thereof is obtained. The reverse water-gas shift catalyst is obtained by at least supporting one or both of nickel and iron as a catalytically active component on a carrier containing a ceria-based metal oxide or a zirconia-based metal oxide as a main component, and a ratio of the carrier to the entire catalyst is 55% by weight or more.

Disclosed is a method for preparing a metal-carbon composite. The method includes synthesizing a planarized ligand compound via planarization-modification of a polyphenol-based ligand compound; synthesizing a metal-organic composite via hydrothermal synthesis of a mixed solution of the planarized ligand compound and metal ions; drying the metal-organic composite to prepare precursor powders; and carbonizing the precursor powders.

Disclosed is a method for preparing a metal-carbon composite. The method includes synthesizing a planarized ligand compound via planarization-modification of a polyphenol-based ligand compound; synthesizing a metal-organic composite via hydrothermal synthesis of a mixed solution of the planarized ligand compound and metal ions; drying the metal-organic composite to prepare precursor powders; and carbonizing the precursor powders.

Disclosed is a method for manufacturing an electrode for alkaline water electrolysis, the method including: dissolving a metal salt in a solvent, followed by synthesis, to prepare a wet powder; performing an oxidative heat treatment on the wet powder; and performing a reductive heat treatment on the oxidatively heat treated powder.

Disclosed is a method for manufacturing an electrode for alkaline water electrolysis, the method including: dissolving a metal salt in a solvent, followed by synthesis, to prepare a wet powder; performing an oxidative heat treatment on the wet powder; and performing a reductive heat treatment on the oxidatively heat treated powder.