Abstract
The preparation of Ni - Mo - Fe, Ni - Mo - Cu, Ni - Mo - Zn, Ni - Mo - W, Ni - Mo - Co and Ni - Mo - Cr codeposit surface coatings on mild steel substrates by conventional electrodeposition techniques is carried out. The chemical composition and the micrographic surface features of these coatings are reported. The utility of these coatigs as cathodes in laboratory scale alkaline water electrolytic cells is assessed with polarization techniques. It is shown that the trend in their electrocatalytic activities follows this order: Ni - Mo - Fe > Ni - Mo - Cu > Ni - Mo - Zn > Ni - Mo - W - Ni - Mo - Co > Ni - Mo - Cr. The electrocatalytic activity of these coatings are very significant when compared with the data of performance realized on conventional mild steel cathodes used currently in industry. The results obtained experimentally are presented. A discussion in brief is also included to highlight their utility.
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