Reaction Mechanism of Li-CuO Cell (Ⅰ) ——Investigation of the Cathode Intercalation Reaction by Photoelectrochemical Method

Chem. J. Chinese Universities ›› 1993, Vol. 14 ›› Issue (9): 1261.

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Reaction Mechanism of Li-CuO Cell (Ⅰ) ——Investigation of the Cathode Intercalation Reaction by Photoelectrochemical Method

ZU Yan-Bing, DONG Qing-Hua

Department of Chemistry, Wuhan University, Wuhan, 430072

Received:1992-10-05 Revised:1993-03-20 Online:1993-09-24 Published:1993-09-24

Abstract

Abstract: The cathode intercalation reaction of Li-CuOcell was studied in-situ by photoelec-trochemical method.The changes of photocurrent of CuOelectrode reflected the intercalation process directly.It is found that Li⁺ ions start inserting into CuOlattice at 2.5 V(vs.Li/Li⁺) and act as the donor impurities, changing the semiconductor property of the cathode.Some succeeding reactions may take place at lower potential, leading to the formation of Cu₂O.

Key words: Photoelectrochemistry, Li-CuO cell, Intercalation reaction

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ZU Yan-Bing, DONG Qing-Hua . Reaction Mechanism of Li-CuO Cell (Ⅰ) ——Investigation of the Cathode Intercalation Reaction by Photoelectrochemical Method[J]. Chem. J. Chinese Universities, 1993, 14(9): 1261.

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Reaction Mechanism of Li-CuO Cell (Ⅰ) ——Investigation of the Cathode Intercalation Reaction by Photoelectrochemical Method

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