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The anodic dissolution of magnesium in chloride and sulphate solutions

文献类型:期刊论文

作者G. Song ; A. Atrens ; D. St John ; X. Wu ; J. Nairn
刊名Corrosion Science
出版日期1997
卷号39期号:10-11页码:1981-2004
关键词magnesium EIS corrosion electrochemical dissolution negative difference effect impedance plane displays stability conditions steady-state corrosion behavior mg
ISSN号0010-938X
中文摘要The electrochemical behaviour of magnesium was studied in representative chloride and sulphate solutions including NaCl, Na2SO4, NaOH and their mixed solutions, HCl, and H2SO4: (1) by measuring electrochemical polarisation curves, (2) by using electrochemical impedance spectroscopy (EIS), and (3) by simultaneous measurement of hydrogen gas evolution and measurement of magnesium dissolution rates using inductively coupled plasma atomic emission spectrophotometry (ICPEAS). These experiments showed that a partially protective surface film played an important role in the dissolution of magnesium in chloride and sulphate solutions. Furthermore, the experimental data were consistent with the involvement of the intermediate species Mg+ in magnesium dissolution at film imperfections or on a film-free surface. At such sites, magnesium first oxidised electrochemically to the intermediate species Mg+, and then the intermediate species chemically reacted with water to produce hydrogen and Mg2+. The presence of Cl- ions increased the film free area, and accelerated the electrochemical reaction rate from magnesium metal to Mg+. (C) 1997 Elsevier Science Ltd.
原文出处://WOS:000071426300017
公开日期2012-04-14
源URL[http://ir.imr.ac.cn/handle/321006/38083]  
专题金属研究所_中国科学院金属研究所
推荐引用方式
GB/T 7714
G. Song,A. Atrens,D. St John,et al. The anodic dissolution of magnesium in chloride and sulphate solutions[J]. Corrosion Science,1997,39(10-11):1981-2004.
APA G. Song,A. Atrens,D. St John,X. Wu,&J. Nairn.(1997).The anodic dissolution of magnesium in chloride and sulphate solutions.Corrosion Science,39(10-11),1981-2004.
MLA G. Song,et al."The anodic dissolution of magnesium in chloride and sulphate solutions".Corrosion Science 39.10-11(1997):1981-2004.

入库方式: OAI收割

来源:金属研究所

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