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Electrodeposition and Thermal Treatment of Ni+W+Si and Ni+W+Mo+Si Composite Coatings
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Aims of Electrocatalysis
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Hydrogen Evolution Reaction on Nickel-Phosphorus+Titanium Oxides Composite Electrocoatings
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Comparison of Electrocatalytic Activity of the Composite Ni-P+NiO and Ni-P+Ni(OH)₂ Coatings for Hydrogen Evolution
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HomeSolid State PhenomenaSolid State Phenomena Vol. 228Hydrogen Evolution Reaction on...

Hydrogen Evolution Reaction on Nickel-Phosphorus+Titanium Oxides Composite Electrocoatings

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Abstract:

One way to obtain hydrogen of high purity on an industrial scale is the electrolysis of water. New electrode materials with the catalytic ability to reduce the energetic barrier of the process have been looked for for many years. The possibility of tailoring the catalytic properties of the electrode material by obtaining it through electrolysis is of particular interest. These electrode materials include materials based on the amorphous nickel matrix containing TiO₂ as its crystalline phase and non-stoichiometric titanium oxides which, thanks to their coexistence in the layer, make up effective oxidation-reduction pairs that catalyse the evolution of hydrogen. The following study is a critical analysis of the parameters characterizing the Ni-P+Ti oxides composite layers for hydrogen evolution. It includes a discussion on the correlation between the chemical and phase composition, morphology, surface development and roughness of the composite layer and its activity in the process of hydrogen evolution. It was found out that the Ni-P+Ti oxides layers can be recommended as cathode electrode materials for the electrolysis of water.

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Periodical:

Solid State Phenomena (Volume 228)

Pages:

187-199

DOI:

https://doi.org/10.4028/www.scientific.net/SSP.228.187

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Online since:

March 2015

Authors:

Bożena Łosiewicz*

Keywords:

Composite Electrocoatings, Hydrogen Evolution Reaction, Ni-P+Ti Oxides

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© 2015 Trans Tech Publications Ltd. All Rights Reserved

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