Catalytic formation of hydrogen in electrolysis of chromium(II) chloride
It was determined that in the electrolysis of chromium(II) chloride the electrodeposits containing chromium and chromium(II) oxide which are formed on the cathode surface accelerate catalytically the reaction Cr2++H+ Cr3++1/2 H2. As a result of superposition of the chemical reaction on the electrochemical process the absolute hydrogen yield in the electrolysis reaches 3500–4500%.
KeywordsOxide Hydrogen Chloride Chromium Electrochemical Process
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- 1.D. P. Zosimovich, N. E. Nechaeva, and N. F. Zorich, “Role of bivalent ions in chromium chloride electrolysis,“ Hydroelectrometallurgy of Chlorides [in Russian], Nauk. Dumka, Kiev (1964), pp. 103–112.Google Scholar
- 2.N. E. Nechaeva, “Effect of the SO4 2− anion on the cathodic process in chromium chloride electrolysis,“ Ukr. Khim. Zh., 52, No. 1, 25–29 (1976).Google Scholar
- 3.N. E. Nechaeva, D. P. Zosimovich, and N. F. Zorich, “Preparation of chromium(II) chloride crystal hydrate,” Ukr. Khim. Zh., 30, No. 10, 1109–1110 (1964).Google Scholar
- 4.N. E. Nechaeva, D. P. Zosimovich, and E. E. Kupchik, “Study of the polarization of a chromium cathode in chloride solutions,” Ukr. Khim. Zh., 38, No. 4, 314–318 (1972).Google Scholar
- 5.O. Esin and A. Levin, “Cathode polarization in zinc deposition from solutions of simple salts,” Zh. Obshch. Khim., 6, No. 9, 1539–1548 (1936).Google Scholar