Influence of Additives on the Dendrite of Zinc Electrode in KOH Solution

doi:10.3724/SP.J.1095.2012.00171

Chinese Journal of Applied Chemistry

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Influence of Additives on the Dendrite of Zinc Electrode in KOH Solution

HU Lianyue, ZHANG Shengtao^*, HUANG Xiaohong, TAN Jianhong, WU Yongying

(College of Chemistry and Chemical Engineering,Chongqing University,Chongqing 400044)

Received:2011-04-25 Revised:2011-06-02 Published:2012-03-10 Online:2012-03-10

Abstract

Abstract: The influences of 6-nitrobenzimidazole, benzimidazole and Pb2+ on zinc dendrite in KOH solution(4 mol/L) were investigated by means of current-time technique. The results showed that 6-nitrobenzimidazole, benzimidazole and Pb2+ could effectively inhibit the formation of zinc dendrites, and enhance the charging capacity of zinc electrode. It showed a high charging efficiency and effective inhibition to the growth of zinc dendrites when the charging was performed at a cathodic overpotential η=-200 mV in 0.05 g/L Pb2+ alkaline solution with the addition of 6-nitrobenzimidazole or benzimidazole.

Key words: Zinc dendrite, Pb2+, 6-Nitrobenzimidazole, Benzimidazole, Overpotential

CLC Number:

O646.6

HU Lianyue, ZHANG Shengtao*, HUANG Xiaohong, TAN Jianhong, WU Yongying. Influence of Additives on the Dendrite of Zinc Electrode in KOH Solution[J]. Chinese Journal of Applied Chemistry, DOI: 10.3724/SP.J.1095.2012.00171.

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Influence of Additives on the Dendrite of Zinc Electrode in KOH Solution

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