DEMS study of ammonia oxidation on platinum basal planes

被引：104

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.

引用

页码：331 / 338

页数：8

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