Nitrate reduction on Pt(111) surfaces modified by Bi adatoms

被引：71

作者：

Figueiredo, Marta C. ^{[1
]}

Souza-Garcia, Janaina ^{[1
]}

Climent, Victor ^{[1
]}

Feliu, Juan M. ^{[1
]}

机构：

[1] Univ Alicante, Inst Electroquim, E-03080 Alicante, Spain

来源：

ELECTROCHEMISTRY COMMUNICATIONS | 2009年 / 11卷 / 09期

关键词：

Platinum electrodes; Nitrate reduction; Electrocatalysis; Bi modified surfaces; Adatoms; IRREVERSIBLY ADSORBED BISMUTH; SINGLE-CRYSTAL SURFACES; SITU FTIR SPECTROSCOPY; ZERO TOTAL CHARGE; ELECTROCATALYTIC REDUCTION; HYDROGEN ADSORPTION; PLATINUM; ELECTRODES; EVOLUTION; NO3;

D O I：

10.1016/j.elecom.2009.07.010

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

This work presents the effect of Bi modification of Pt(1 1 1) electrodes on the electroreduction of nitrate anions by using voltammetric and FTIR experiments. On Pt(1 1 1) nitrate consumption occurs at potentials lower than 0.35 V, but with Pt(1 1 1)/Bi this process is shifted to significantly higher potentials (0.6-0.7 V). In the latter surface N2O was observed as the main product in solution. Different forms of adsorbed NO were detected on the adatom covered surfaces as well as on clean Pt(1 1 1). (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：1760 / 1763

页数：4

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