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Raney nickel is a relatively inexpensive and highly active nonnoble metal catalyst for hydrogen electrodes in alkaline fuel cells. Mund et al. (1977) have found that its catalytic activity is increased by doping involving transition metals, such a titanum, iron, and molybdenum. The present investigation is concerned with the preparation of hydrogen electrodes catalyzed with chromium-doped Raney nickel and the measurement of their polarization characteristics. On the basis of the obtained results, it is concluded that chromium is a good dopant for Raney nickel which is employed for hydrogen electrodes. Chromium improves and stabilizes the polarization characteristics of Raney nickel electrodes. It is found that chromium-doped Raney nickel is more active than the titanium-doped catalyst. 6 references.
T. Kenjo (Fri,) studied this question.