Electrochemical reduction and hydrogenation of Co oxides

S. R. Chung, K. W. Wang, S. R. Sheen, C. T. Yeh, T. P. Perng

研究成果: 雜誌貢獻期刊論文同行評審

13 引文 斯高帕斯(Scopus)

摘要

The electrochemical hydrogenation properties of CoO and Co3 O4 powders were investigated and compared to those of hexagonal close-packed Co. The discharge capacity was measured in KOH aqueous solution under a controlled current density 500 mAg. The maximum reversible discharge capacities of Co, CoO, and Co3 O4 were 415 mAhg (2 h charging), 389 mAhg (2 h charging), and 426 mAhg (5 h charging), equivalent to CoH0.91, CoH0.85, and CoH0.93, respectively. Because CoO and Co3 O4 are mostly reduced to Co in the initial charge stage, the discharge capacities of both oxides are mainly from dehydrogenation of CoHx.

原文???core.languages.en_GB???
頁(從 - 到)A155-A158
期刊Electrochemical and Solid-State Letters
10
發行號7
DOIs
出版狀態已出版 - 2007

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