Electroreduction of nitromethane in aqueous solution. A surface indifferent electrocatalytic reaction

被引：12
作者：
Aixill, WJ
Mills, PB
Compton, RG
Prieto, F
Rueda, M
机构：
[1] Univ Oxford, Phys & Theoret Chem Lab, Oxford OX1 3QZ, England
[2] Univ Sevilla, Fac Pharm, Dept Chem Phys, Seville 41012, Spain
来源：
JOURNAL OF PHYSICAL CHEMISTRY B | 1998年 / 102卷 / 46期
关键词：
D O I：
10.1021/jp983532z
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：
The electroreduction of nitromethane in aqueous solution is shown to follow a mechanism of the heterogeneous ECEEE type on gold electrodes as also seen for platinum and other substrates. Moreover, the rate of the chemical step is surprisingly similar, to within less than an order of magnitude, on all surfaces studied. Kinetic isotope measurements show that the chemical step in the reaction sequence is approximately a factor of 2 slower in D2O than in H2O. A mechanism is proposed that accounts for the lack of surface sensitivity and for the observed isotope effect.
引用
收藏
页码：9187 / 9190
页数：4
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