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首页> 外文期刊>Electrocatalysis >Electrocatalytic Properties of Co-Mo Alloys Electrodeposited from a Citrate-Pyrophosphate Electrolyte
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Electrocatalytic Properties of Co-Mo Alloys Electrodeposited from a Citrate-Pyrophosphate Electrolyte

机译：柠檬酸焦磷酸盐电解质电沉积钴钼合金的电催化性能

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摘要

The electrocatalytic activity of electrodeposits of cobalt and Co-Mo alloys in the electroreduction reaction of hydrogen evolution in an acid, neutral and alkaline media has been studied in this work. To deposit coatings, a nontoxic citrate-pyrophosphate electrolyte was used, which was proposed earlier. It has been found that the alloys having the same chemical composition but a different phase composition can exhibit different electrocatalytic activity. The best electrolyte for the making of catalytically active Co-Mo alloys, for which the decrease in hydrogen evolution overpotential as compared with pure cobalt is about 400 mV at 30 mA cm~(-2) in alkaline solution, is solution with the cobalt and molybdenum concentration ratio 10:1.
机译：在这项工作中，已经研究了钴和钴钼合金电沉积在氢在酸性，中性和碱性介质中的电还原反应中的电催化活性。为了沉积涂层，使用了较早提出的无毒的柠檬酸盐-焦磷酸盐电解质。已经发现具有相同化学组成但具有不同相组成的合金可以表现出不同的电催化活性。与碱性溶液相比，在30 mA cm〜（-2）的条件下，与纯钴相比，氢释放超电势的降低约为400 mV，是制造催化活性Co-Mo合金的最佳电解质。钼的浓缩比为10：1。

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