固/液界面电化学体系与XPS联用系统对Pt/Sb和Pt/Bi电极表面化学状态的比较研究

The System Combined Electrochemistry and Electron Spectroscopy and the Investigation of Surface Chemical States of Pt/Sb and Pt/Bi Electrode

摘要: 利用已建立的固/液界面电化学体系Electrochemistry(EC)与超高真空电子能谱Ultra High Vacaum X-ray Photoelectron Spectroscopy(UHVXPS)联用系统详细研究了Pt电极表面欠电位沉积Underpotential deposition(UPD)Sb、Bi的表面化学状态特征,结果表明Sb、Bi虽同为VA族元素,但二者在Pt电极表面的UPD特征却有很大差异.

Abstract: The Pt electrode surface underpotential deposition Sb and Bi chemical properties using system of combining electrochemistry and electron spectroscopy was studied. The results show that though Sb and Bi are the elements of group VA, both of their UPD properties on Pt electrode surface are of great diffrence.