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Citation: Zeng Yue, Yao Shi-Bing, Zhou Shao-Min. In Situ Surface Raman Spectroscopy Study of Electrodeposition Mechanism of Ni-P Alloys[J]. Acta Physico-Chimica Sinica, ;2000, 16(02): 175-179. doi: 10.3866/PKU.WHXB20000215 shu

In Situ Surface Raman Spectroscopy Study of Electrodeposition Mechanism of Ni-P Alloys

1.
State Key Laboratory for Physical Chemistry of the Solid Surface,Department of Chemistry,Xiamen University,Xiamen 361005

Received Date: 5 April 1999
Available Online: 15 February 2000

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.
- In situ Raman Spectroscopy,
- Electrodeposition,
- Ni-P alloy,
- Codeposition mechanism
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