Noble metal rhodium hydrogen evolution electrocatalyst and application

Abstract

The invention belongs to the field of water electrolysis hydrogen evolution catalytic materials, and particularly relates to a noble metal rhodium hydrogen evolution electrocatalyst and application. According to the invention, a rhodium oxide nickel-based phosphate carbon carrier is prepared by a two-step electro-deposition mild synthesis method, and has low Rh content. An electrochemical experiment result shows that the rhodium oxide nickel-based phosphate carbon carrier shows excellent HER electrochemical performance, and the performance of the rhodium oxide nickel-based phosphate carbon carrier can be comparable with that of a commercial Pt / C catalyst.

Description

technical field [0001] The invention belongs to the field of hydrogen evolution catalytic materials for electrolysis of water, in particular to a noble metal rhodium hydrogen evolution electrocatalyst and its application. Background technique [0002] The environmental consequences of fossil fuel consumption and carbon dioxide emissions have forced major efforts to develop a new renewable material at a scale sufficient to replace fossil fuels and meet the growing global energy consumption demands. Exploring effective production strategies to synthesize molecular hydrogen has become an upsurge. Aided by highly active non-noble metal electrocatalysts, electrolyzed water is emerging as a promising candidate for the production of low-cost, high-purity hydrogen. The theoretically described Gibbs free energy of hydrogen adsorption is related to (ΔG H ) usually correlates with catalyst activity. Today, however, platinum (Pt) and its alloys have a ΔG close to zero H , has the hi...

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Problems solved by technology

However, as far as is known from the literature reported at this stage, there are few studies on the synthesis of Rh-based electrocatalysts by mild methods.

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