Detection of Hydrogen Peroxide at Mesoporous Platinum Microelectrodes

Mesoporous (HI-ePt) platinum microelectrodes electrodeposited from the hexagonal (HI) 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 me...

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Bibliographic Details
Published inAnalytical chemistry (Washington) Vol. 74; no. 6; pp. 1322 - 1326
Main Authors Evans, Stuart A. G, Elliott, Joanne M, Andrews, Lynn M, Bartlett, Philip N, Doyle, Peter J, Denuault, Guy
Format Journal Article
LanguageEnglish
Published Washington, DC American Chemical Society 15.03.2002
Subjects
Analytical chemistry
Chemistry
Electrodes
Exact sciences and technology
General, instrumentation
Hydrogen
Performance evaluation
Hydrogen peroxide
Reproducibility
Amperometry
Microelectrode
Measurement accuracy
Chemical sensor
Liquid crystals
Porous material
Mesoporosity
Optimization
Electrochemical detector
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Summary:Mesoporous (HI-ePt) platinum microelectrodes electrodeposited from the hexagonal (HI) 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.
Bibliography:istex:DC316CC7E44583DEB62B8EC49339D211C8116266
ark:/67375/TPS-QJ6LJ7FJ-L
ObjectType-Article-1
SourceType-Scholarly Journals-1
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ISSN:0003-2700
1520-6882
DOI:10.1021/ac011052p