现场表面拉曼光谱研究Ni-P合金电沉积机理

被引:3
作者
曾跃
姚士冰
周绍民
机构
[1] 湖南师范大学化学系!长沙,固体表面物理化学国家重点实验室!厦门大学化学系,厦门,固体表面物理化学国家重点实验室!厦门大学化学系,厦门
关键词
现场拉曼光谱; 电沉积; Ni-P合金; 共沉积机理;
D O I
暂无
中图分类号
O646 [电化学、电解、磁化学];
学科分类号
081704 ;
摘要
Codeposition mechanism of phosphorus with nickel on an Ni Ag alloy electrode has been investigated by means of in situ surface enhanced Raman spectroscopy(SERS) and electrochemical method to obtain new information about the phosphorus incorporation mechanism during electrodeposition of Ni P alloys.The intermediate,Ni(PH3)n,in the electrodeposition of Ni P alloy was detected with in situ surface Raman spectroscopy for the first time. The experimental results showed that in the solution without NiSO4,hypophosphite was reduced only to Ni phosphine compound,while in the case where NiSO4 coexisted in the solution,the Ni phosphine compound,as an intermediate,was oxidized by Ni2+to elemental phosphorus in alloys with nickel acting as the catalyst.
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页码:175 / 179
页数:5
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