期刊
JOURNAL OF POWER SOURCES
卷 174, 期 1, 页码 176-179出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jpowsour.2007.08.082
关键词
ethanol; electro-oxidation; EU3+; CO
It is reported for the first time that the slow electrochemical kinetics process for the electro-oxidation of ethanol can be promoted by changing the electrochemical environment. The electro-oxidation of ethanol at a Pt electrode in the presence of Eu3+ cations was studied and an enhancement effect was exhibited. Cyclic voltammetry experiment results showed that the peak current density for the electro-oxidation of ethanol was increased in the presence of EU3+ in the ethanol solution. A preliminary discussion of the mechanism of the enhancement effect is given. This is based on a CO stripping experiment, which shows that either the onset potential or the peak potential of CO oxidation is shifted negatively after adding Eu3+ to the solution. (c) 2007 Elsevier B.V. All rights reserved.
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