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.
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.
出处
《物理化学学报》
SCIE
CAS
CSCD
北大核心
2000年第2期175-179,共5页
Acta Physico-Chimica Sinica
基金
国家自然科学基金!(59605006)
关键词
现场拉曼光谱
电沉积
共沉积机理
镍磷合金
In situ Raman Spectroscopy, Electrodeposition, Ni P alloy, Codeposition mechanism
