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

doi:10.1016/j.cclet.2011.07.017

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^*

^*Corresponding author for this work

Ministry of Education in China

Research output: Contribution to journal › Article › peer-review

7 Citations (Scopus)

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 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.

Original language	English
Pages (from-to)	1481-1484
Number of pages	4
Journal	Chinese Chemical Letters
Volume	22
Issue number	12
DOIs	https://doi.org/10.1016/j.cclet.2011.07.017
Publication status	Published - Dec 2011
Externally published	Yes

Keywords

Adsorbed carbon monoxide
Pt ultramicroelectrode
SECM
Serine
Surface interrogation mode

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10.1016/j.cclet.2011.07.017

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

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 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.",

keywords = "Adsorbed carbon monoxide, Pt ultramicroelectrode, SECM, Serine, Surface interrogation mode",

author = "Huang, \{Chun Cui\} and Qian Wang and Xiang, \{De Bo\} and Shao, \{Hui Bo\}",

year = "2011",

month = dec,

doi = "10.1016/j.cclet.2011.07.017",

language = "English",

volume = "22",

pages = "1481--1484",

journal = "Chinese Chemical Letters",

issn = "1001-8417",

publisher = "Elsevier B.V.",

number = "12",

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TY - JOUR

T1 - Surface interrogation mode of scanning electrochemical microscopy for oxidation study of adsorbed CO generated from serine on platinum

AU - Huang, Chun Cui

AU - Wang, Qian

AU - Xiang, De Bo

AU - Shao, Hui Bo

PY - 2011/12

Y1 - 2011/12

N2 - 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 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.

AB - 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 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.

KW - Adsorbed carbon monoxide

KW - Pt ultramicroelectrode

KW - SECM

KW - Serine

KW - Surface interrogation mode

UR - https://www.scopus.com/pages/publications/80054802446

U2 - 10.1016/j.cclet.2011.07.017

DO - 10.1016/j.cclet.2011.07.017

M3 - Article

AN - SCOPUS:80054802446

SN - 1001-8417

VL - 22

SP - 1481

EP - 1484

JO - Chinese Chemical Letters

JF - Chinese Chemical Letters

IS - 12

ER -

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

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