DEMS study of ammonia oxidation on platinum basal planes

被引：111
作者：
Vidal-Iglesias, FJ
Solla-Gullón, J
Feliu, JM
Baltruschat, H
Aldaz, A
机构：
[1] Univ Alicante, Dept Quim Fis, Alicante 03080, Spain
[2] Univ Alicante, Inst Univ Electroquim, Alicante 03080, Spain
[3] Univ Bonn, Inst Phys & Theoret Chem, D-53117 Bonn, Germany
来源：
JOURNAL OF ELECTROANALYTICAL CHEMISTRY | 2006年 / 588卷 / 02期
关键词：
ammonia oxidation; DEMS; platinum single crystal electrodes;
D O I：
10.1016/j.jelechem.2006.01.009
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
The oxidation of ammonia has been studied using Differential Electrochemical Mass Spectrometry on the three Pt basal planes. The observed products N-2, NO and N2O were obtained for the three platinum single crystals. The sensitivity of the ammonia oxidation towards Pt(100) sites is highlighted as well as the presence of a poison formed during the oxidation that blocks the surface. This species seems to inhibit the N-2 formation at lower potentials than for NO and N2O. (c) 2006 Elsevier B.V. All rights reserved.
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收藏
页码：331 / 338
页数：8
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