Electrocatalytic Cobalt–Molybdenum Alloy Deposits
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- Category: Molybdenum knowledge
- Published on 02 July 2013
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Electrodeposition of molybdenum alloys with iron group metals is of renewed interest. The electrodeposits are used as cathode materials in fuel cells.
Electodeposition of Co–Mo alloy from triammonium citrate bath is described. To get a bright Co–Mo alloy deposit the optimum plating bath conditions are CoSO4 0.3 M, (NH4)2MoO4 0.25 M, triammonium citrate 0.2 M, pH 8, c.d at 303 K.
Hardness of the alloy deposit increased with molybdenum content and annealing. Increase of Mo content in the alloy favoured electrocatalytic property for hydrogen evolution reaction.
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