Methods for the production in an electrochemical cell of metal oxide deposited graphene and/or graphite nanoplatelet structures having a thickness of less than 100 nm, in a cell having a positive electrode which is graphitic and an electrolyte comprising an intercalating anion and a metal cation, wherein the metal is selected from ruthenium, manganese, iridium, tin, and silver. The methods comprising the step of passing a current through the cell to intercalate anions into the graphitic positive electrode so as to exfoliate the graphitic positive electrode and such that the metal ion undergoes electrodeposition in the form of the corresponding metal oxide to produce the metal oxide deposited graphene and/or graphite nanoplatelet structures.

The present invention provides electrodes comprising a core substrate, and internal layer coating, and an external layer coating and processes to prepare such electrodes.

The present invention provides electrodes comprising a core substrate, and internal layer coating, and an external layer coating and processes to prepare such electrodes.

The present invention relates to a carbon-supported and surface-engineered platinum nanocube catalyst having excellent ammonia oxidation activity, a method for preparing the same, and an ammonia decomposition device including the same.

The present invention relates to a carbon-supported and surface-engineered platinum nanocube catalyst having excellent ammonia oxidation activity, a method for preparing the same, and an ammonia decomposition device including the same.

A copper-palladium-loaded mesoporous silicon carbide-based catalyst, a preparation method, and an application thereof are provided. First, a mesoporous silicon carbide material is prepared by using mesoporous silica as a hard template; subsequently, the mesoporous silicon carbide material is mixed with a copper-palladium precursor mixed solution, and dried after the solvent is completely volatilized. The dried powder is successively subjected to calcination with N.sub.2 and reduction with H.sub.2 to finally obtain the copper-palladium-loaded mesoporous silicon carbide-based catalyst. The catalyst is made into an electrode, and the nitrate in water body is catalytically reduced by electrochemical method. The preparation method of the catalyst of the present invention is simple. The catalyst can realize high-efficiency catalytic denitrification at a low metal loading amount, with high selectivity of nitrogen. Moreover, the catalyst has the advantages of high activity, good stability, wide application range and low cost.

A copper-palladium-loaded mesoporous silicon carbide-based catalyst, a preparation method, and an application thereof are provided. First, a mesoporous silicon carbide material is prepared by using mesoporous silica as a hard template; subsequently, the mesoporous silicon carbide material is mixed with a copper-palladium precursor mixed solution, and dried after the solvent is completely volatilized. The dried powder is successively subjected to calcination with N.sub.2 and reduction with H.sub.2 to finally obtain the copper-palladium-loaded mesoporous silicon carbide-based catalyst. The catalyst is made into an electrode, and the nitrate in water body is catalytically reduced by electrochemical method. The preparation method of the catalyst of the present invention is simple. The catalyst can realize high-efficiency catalytic denitrification at a low metal loading amount, with high selectivity of nitrogen. Moreover, the catalyst has the advantages of high activity, good stability, wide application range and low cost.

Electrode membrane assembly having an oxygen evolution reaction electrodes, the electrode membrane assembly comprising nanostructured whiskers with at least one of metallic Ir or Ir oxide thereon. These oxygen evolution reaction electrodes when paired with suitable hydrogen evolution electrodes are useful, for example, in generating H.sub.2 and O.sub.2 from water.

The invention relates to a process for obtaining a electrode usable as a anode in electrolytic cells for the production of chlorine. The electrode thus obtained comprises a catalytic layer containing oxides of tin, ruthenium, iridium and titanium applied to a substrate of a valve metal.

An electrolyser (F) for generating hydrogen from water, the electrolyser comprising an electrode (102), the electrode (120) comprising nanoparticles selected from Group 1 nanoparticles or alloys or composites or mixtures thereof.