Electrochemical Characteristics of Poly(vinyl pyrrolidone) (PVP) and Poly(vinyl alcohol) (PVA) on Single-Crystal Pt Surfaces in Acidic Medium

被引:3
|
作者
Gasparotto, L. H. [1 ]
Gomes, J. F. [1 ]
Tremiliosi-Filho, G. [1 ]
机构
[1] Univ Sao Paulo, Inst Quim Sao Carlos, BR-13560970 Sao Paulo, Brazil
关键词
AQUEOUS H2SO4; ELECTRODES; PT(111); NANOPARTICLES; ADSORPTION; BENZENE;
D O I
10.1149/1.4704967
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
In the present paper we investigated the electrochemical behaviors of poly(vinyl pyrrolidone) (PVP) and poly(vinyl alcohol) (PVA) on Pt (111), (100) and (110) electrodes. Both polymers hampered the characteristic hydrogen UPD and anion adsorption/desorption on all investigated surfaces, with the processes on Pt(110) being the most affected by their presence. Several oxidation processes appeared in the positive potential sweep and the Pt(111) was found to be the most active for the oxidation processes.
引用
收藏
页码:259 / 266
页数:8
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