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| Surface interrogation mode of scanning electrochemical microscopy for oxidation study of adsorbed CO generated from serine on platinum |
| Chun Cui Huang, Qian Wang, De Bo Xiang, Hui Bo Shao |
| Key Laboratory of Cluster Science, Ministry of Education of China, School of Chemistry, Beijing Institute of Technology, Beijing 100081, China |
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Abstract 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 (Br2) 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 Br2 giving a positive response. Dosing CO (ads) from serine instead of purging CO gas expands the newly introduced reaction of Br2 with CO (ads) and further enhances the hope to get rid of CO (ads) on Pt for fuel cells.
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Received: 11 May 2011
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| Fund:This work was supported by the Project of Base for Introducing Talents of Discipline to Universities (111 project), Ministry of Education of China and China State Administration of Foreign Experts Affairs (No.B07012).We greatly appreciate the support of the National Natural Science Foundation of China (No.21173023). |
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Corresponding Authors:
Hui Bo Shao,E-mail address:hbs@bit.edu.cn
E-mail: hbs@bit.edu.cn
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| About author:: 10.1016/j.cclet.2011.07.017 |
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