Detection of hydrogen peroxide at mesoporous platinum microelectrodes

被引:346
作者
Evans, SAG
Elliott, JM
Andrews, LM
Bartlett, PN
Doyle, PJ
Denuault, G [1 ]
机构
[1] Univ Southampton, Dept Chem, Southampton SO17 1BJ, Hants, England
[2] Univ Reading, Dept Chem, Reading RG6 6AD, Berks, England
[3] Unilever Res, Port Sunlight Lab, Wirral L63 3JW, Merseyside, England
关键词
D O I
10.1021/ac011052p
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
Mesoporous (H-I-ePt) platinum microelectrodes electrodeposited from the hexagonal (H-1) lyotropic liquid crystalline phase are shown to be excellent amperometric sensors for the detection of hydrogen peroxide over a wide range of concentrations. Good reproducibility, high precision, and accuracy of measurements are demonstrated. Mesoporous microelectrodes retain the high rates of mass transport typical of conventional microelectrodes, and their high real surface area greatly enhances their catalytic activity. This unique combination of properties overcomes the limitations of previous amperometric hydrogen peroxide sensors and yields outstanding qualitative and quantitative results.
引用
收藏
页码:1322 / 1326
页数:5
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