Co-adsorption of Irreversibly Adsorbing Sb and Te on Pt(111)

Bulletin of the Korean chemical society

Jisheng Zhao¹  Choong Kyun Rhee¹  Taegon Kim¹  Bonseong Ku¹  Changhoon Jung¹ 

关键词: Pt(111);    Sb;    Te;    Irreversible adsorption;    Voltammetry;   

DOI  :  

学科分类：化学（综合）

来源: Korean Chemical Society

【 摘 要 】

Presented is a voltammetric study of co-adsorption of irreversibly adsorbing Sb and Te on Pt(111). When a layer of Sb and Te was formed via simultaneous adsorption, the reduction peak of Te was observed at 0.30 V in the initial cathodic scan. In contrast, sequential adsorption of Sb followed by Te adsorption led to a Te reduction peak at 0.50 V in the initial scan. As the voltammetric scan was continued, in addition, the voltammogram of the simultaneously co-adsorbed layer changed, while that of the sequentially co-adsorbed layer did not. These observations are discussed in terms of formation of a homogeneously mixed layer and a layer consisting of heterogeneously separated domains of Sb and Te. Also, the difference in the adsorption strength of Sb and Te was observed.

【 授权许可】

Unknown