Dissociative adsorption dynamics of formaldehyde on a platinum electrode surface; One-dimensional domino?

被引:24
作者
Nakabayashi, S [1 ]
Sugiyama, N [1 ]
Yagi, I [1 ]
Uosaki, K [1 ]
机构
[1] HOKKAIDO UNIV,FAC SCI,DEPT CHEM,PHYS CHEM LAB,SAPPORO,HOKKAIDO 060,JAPAN
关键词
D O I
10.1016/0301-0104(95)00408-4
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
When a potentiostatically controlled polycrystalline platinum electrode is dipped into a sulfuric acid aqueous solution containing formaldehyde, the surface is covered by CO, which is formed as a result of the dissociative adsorption of formaldehyde. The kinetics of this dissociative adsorption process is investigated by the combination of the electrochemical and the laser desorption methods. The surface CO coverage is linearly increased as a function of time. This zeroth order kinetics is explained by the domino mechanism.
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页码:269 / 275
页数:7
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