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Gold-platinum alloy nanowires as highly sensitive materials for electrochemical detection of hydrogen peroxide

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WOS被引频次:44
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成果类型:
期刊论文
作者:
Zhou, Yibo;Yu, Gang;Chang, Fangfang;Hu, Bonian;Zhong, Chuan-Jian
通讯作者:
Yu, G.(yuganghnu@163.com)
作者机构:
[ Hu, Bonian ] Department of Materials and Chemical Engineering, Hunan Institute of Technology, Hengyang 421008, China
[ Chang, Fangfang ; Zhou, Yibo ; Yu, Gang ] State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
[ Zhong, Chuan-Jian ] Department of Chemistry, State University of New York at Binghamton, Binghamton, NY 13902, United States
通讯机构:
[Yu, G] Hunan Univ, Coll Chem & Chem Engn, State Key Lab Chemo Biosensing & Chemometr, Changsha 410082, Hunan, Peoples R China.
语种:
英文
关键词:
Alternating current - Bimetallic compositions - Electrocatalytic activity - Electrocatalytic response - ELectrochemical detection - Fast response time - Gold-platinum alloy - High sensitivity - Hydrogen peroxide sensor - Low detection limit - Microelectrode devices - Mono-dispersed - Response mechanisms - Sensing characteristics - Sensing material - Sensitive materials - Synergistic activity
期刊:
Analytica Chimica Acta
ISSN:
0003-2670
年:
2012
卷:
757
页码:
56-62
文献类别:
WOS:Article;EI:Journal article (JA)
所属学科:
ESI学科类别:化学;WOS学科类别:Chemistry, Analytical
入藏号:
WOS:000312514800007;EI:20125015781145;PMID:23206396
基金类别:
National Natural Science Foundation of China [51271074]; Hunan Provincial National Natural Science Foundation of China [10JJ3016]; Development Program of Key Disciplines in Hunan Province; National Science Foundation [CHE 0848701]
机构署名:
本校为其他机构
院系归属:
材料与化学工程学院
摘要:
The exploitation of the unique electrical properties of nanowires requires an effective assembly of nanowires as functional materials on a signal transduction platform. This paper describes a new strategy to assemble gold-platinum alloy nanowires on microelectrode devices and demonstrates the sensing characteristics to hydrogen peroxide. The alloy nanowires have been controllably electrodeposited on microelectrodes by applying an alternating current. The composition, morphology and alloying structures of the nanowires were characterized, revealing a single-phase alloy characteristic, highly monodispersed morphology, and controllable bimetallic compositions. The alloy nanowires were shown to exhibit electrocatalytic response characteristics for the detection of hydrogen peroxide, exhibiting a high sensitivity, low detection limit, and fast response time. The nanowire's response mechanism to hydrogen peroxide is also discussed in terms of the synergistic activity of the bimetallic binding sites, which has important implications for a better design of functional nanowires as sensing materials for a wide range of applications. (C) 2012 Elsevier B.V. All rights reserved.
参考文献:
Aravamudhan S, 2007, SENSOR ACTUAT B-CHEM, V127, P29, DOI 10.1016/j.snb.2007.07.008
Cao X, 2010, SENSOR ACTUAT B-CHEM, V147, P730, DOI 10.1016/j.snb.2010.03.087
Cheng Y, 2011, J CRYST GROWTH, V334, P181, DOI 10.1016/j.jcrysgro.2011.08.024
Cherevko S, 2009, SENSOR ACTUAT B-CHEM, V142, P216, DOI 10.1016/j.snb.2009.07.023
Chu X, 2007, TALANTA, V71, P2040, DOI 10.1016/j.talanta.2006.09.013

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