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Surface activated amorphous and supersaturated solid solution alloys for electrodes in the electrolysis of solutions and the method for their surface activation
Surface activated amorphous and supersaturated solid solution alloys for electrodes in the electrolysis of solutions and the method for their surface activation
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机译:溶液电解中用于电极的表面活化的非晶态和过饱和固溶体合金及其表面活化方法
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摘要
Electrode materials and method for their surface activation are described. Alloys consisting of at least one element of the group consisting of Nb, Ta, Ti and Zr, at least one element of the group consisting of Ru, Rh, Pd, lr and Pt, and balance being Ni are prepared by methods for preparation of amorphous alloys, and are amorphous or supersaturated solid solution. Their surfaces are activated to enhance electrocatalytic activity by enrichment of electrocatalytically active platinum group elements in the surface region in addition to surface roughening as a result of selective dissolution of Ni, Nb, Ta, Ti and Zr from the alloys during immersion in corrosive solutions. The surface-activated amorphous and supersaturated solid solution alloys possess high electrocatalytic activity and selectivity for a specific reaction as well as high corrosion resistance.
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