Surface interrogation mode of scanning electrochemical microscopy for oxidation study of adsorbed CO generated from serine on platinum

被引：7
作者：
Huang, Chun Cui [1 ]
Wang, Qian [1 ]
Xiang, De Bo [1 ]
Shao, Hui Bo [1 ]
机构：
[1] Beijing Inst Technol, Sch Chem, Key Lab Cluster Sci, Minist Educ China, Beijing 100081, Peoples R China
来源：
CHINESE CHEMICAL LETTERS | 2011年 / 22卷 / 12期
基金：
中国国家自然科学基金;
关键词：
SECM; Surface interrogation mode; Adsorbed carbon monoxide; Serine; Pt ultramicroelectrode; IN-SITU FTIR; AMINO-ACIDS; FORMIC-ACID; ADSORPTION; ELECTRODES; BEHAVIOR; ALANINE; GOLD;
D O I：
10.1016/j.cclet.2011.07.017
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
We report a new method for detection and oxidation of adsorbed carbon monoxide (CO((ads))) generated from serine on a polycrystalline platinum ultramicroelectrode (UME) by bromine (Br(2)) using in situ surface interrogation (SI) mode of scanning electrochemical microscopy (SECM). In the SI mode, tip and substrate are both Pt UMEs, and CO((ads)) on Pt substrate, generated from serine, can be oxidized by the tip-generated Br(2) giving a positive response. Dosing CO((ads)) from serine instead of purging CO gas expands the newly introduced reaction of Br(2) with CO((ads)) and further enhances the hope to get rid of CO((ads)) on Pt for fuel cells. (C) 2011 Hui Bo Shao. Published by Elsevier B.V. on behalf of Chinese Chemical Society. All rights reserved.
引用
收藏
页码：1481 / 1484
页数：4
相关论文
共 9 条
[1]  
AMEMIYA S, 2008, REV ANAL CHEM, V1, P1
[2]   Adsorption and electro-oxidation of carbon monoxide at the platinum-acetonitrile interface as probed by surface-enhanced Raman spectroscopy [J].
Cao, PG ;
Sun, YH ;
Yao, JL ;
Ren, B ;
Gu, RN ;
Tian, ZQ .
LANGMUIR, 2002, 18 (07) :2737-2742
[3]   Electrochemical behaviour of amino acids on Pt(h,k,l). A voltammetric and in situ FTIR study .2. Serine and alanine on Pt(111) [J].
Huerta, F ;
Morallon, E ;
Cases, F ;
Rodes, A ;
Vazquez, JL ;
Aldaz, A .
JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1997, 431 (02) :269-275
[4]   Electrochemical behaviour of amino acids on Pt(hkl).: A voltammetric and in situ FTIR study Part IV.: Serine and alanine on Pt(100) and Pt(110) [J].
Huerta, F ;
Morallón, E ;
Vázquez, JL ;
Aldaz, A .
JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1999, 475 (01) :38-45
[5]   Catalysts for direct formic acid fuel cells [J].
Rice, C ;
Ha, S ;
Masel, RI ;
Wieckowski, A .
JOURNAL OF POWER SOURCES, 2003, 115 (02) :229-235
[6]   Scanning Electrochemical Microscopy: Surface Interrogation of Adsorbed Hydrogen and the Open Circuit Catalytic Decomposition of Formic Acid at Platinum [J].
Rodriguez-Lopez, Joaquin ;
Bard, Allen J. .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2010, 132 (14) :5121-5129
[7]   Interrogation of Surfaces for the Quantification of Adsorbed Species on Electrodes: Oxygen on Gold and Platinum in Neutral Media [J].
Rodriguez-Lopez, Joaquin ;
Alpuche-Aviles, Mario A. ;
Bard, Allen J. .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2008, 130 (50) :16985-16995
[8]   Reaction of Br2 with Adsorbed CO on Pt, Studied by the Surface Interrogation Mode of Scanning Electrochemical Microscopy [J].
Wang, Qian ;
Rodriguez-Lopez, Joaquin ;
Bard, Allen J. .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2009, 131 (47) :17046-+
[9]   Surface-enhanced Raman spectroscopic studies of dissociative adsorption of amino acids on platinum and gold electrodes in alkaline solutions [J].
Xiao, XY ;
Sun, SG ;
Yao, JL ;
Wu, QH ;
Tian, ZQ .
LANGMUIR, 2002, 18 (16) :6274-6279
1