4.6 Article

Effects of calcium lignosulfonate on the performance of zinc-nickel battery

期刊

ELECTROCHIMICA ACTA
卷 85, 期 -, 页码 554-559

出版社

PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.electacta.2012.08.111

关键词

Calcium lignosulfonate; Anticorrosion inhibitor; Surfactant; Cyclic voltammogram; Corrosion potential

资金

  1. National Natural Science Foundation of China [91023031]
  2. Innovation Fund for Technology Based Firms of China [10C26214104497]
  3. Production, Teaching and Research Integrated Project of Guangdong Province and Ministry of Education [2010B090400341]

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As a cathodic corrosion inhibitor and surfactant additive, the effects of calcium lignosulfonate (CLS) on the electrochemical behaviors of ZnO electrode were examined by polarization measurements, EIS (electrochemical impedance spectrum) and CV (cyclic voltammogram) electrochemical technique methods. Both of the corrosion current density and anodic Tafel slope for the ZnO with CLS additive (CZO) anode are smaller than those for the ordinary ZnO (OZO) anode, which indicates that the CLS has a good anticorrosion effect. Compared the CZO anode with the OZO anode, negative shift of the corrosion potential means CZO anode has a higher overpotential of hydrogen evolution. In order to explore the electrochemical corrosion performances of the zinc anodic process, further more studies such as morphological analysis, galvanostatic charge-discharge tests are also applied. (C) 2012 Elsevier Ltd. All rights reserved.

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