%0 Journal Article %T ELECTROCHEMICAL STUDY OF ACTIVE DISSOLUTION FOR ALUMINUM IN NEUTRAL NaCl SOLUTION
纯铝在NaCl溶液中活化溶解时电化学行为研究 %A 许刚 %A 曹楚南 %A 林海潮 %A 张鉴清 %J 腐蚀科学与防护技术 %D 1998 %I %X The electrochemical behavior of active dissolution of aluminum in 0.5 mol/L NaCl solution was studied by potentiodynamic method and potentiostatic hydrogen gathering measurement. When the solution was added with metal ions with high hydrogen evolution overpotential such as Zn 2+ , Sn 2+ , Ga 3+ and In 3+ , the active potential of aluminum moved negatively and the negative difference effect (NDE) of aluminum during anodized dissolution decreased, indicating the synergetic action of Zn 2+ and In 3+ . The mechanism of aluminum activation and NDE were investigated by EIS measurement. The results showed that aluminum negative difference effect was caused by the chemical reaction of low valence Al + in solution when the metal ions with high hydrogen evolution overpotential were added in the solution. %K Potentiodynamic method %K Potentiostatic hydrogen gathering %K Aluminum %K activation %K NDE %K EIS %K High hydrogen evolution overpotential metal ions
铝负差数效应 %K 动电位扫描 %K 恒电位集气 %K 活化溶解 %U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=AB188D3B70B071C57EB64E395D864ECE&jid=9F6E6EC8BA5BB62698F6640073DDD6E1&aid=AA8A19F2C16BAC16B44EFB693BE8AE10&yid=8CAA3A429E3EA654&vid=F3090AE9B60B7ED1&iid=B31275AF3241DB2D&sid=59906B3B2830C2C5&eid=BCA2697F357F2001&journal_id=1002-6495&journal_name=腐蚀科学与防护技术&referenced_num=11&reference_num=5