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Ordered Mesoporous Carbon Functionalized with Polythionine for Electrocatalytic Application
Author(s) -
Qi Bin,
Peng Xiaojuan,
Fang Jue,
Guo Liping
Publication year - 2009
Publication title -
electroanalysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.574
H-Index - 128
eISSN - 1521-4109
pISSN - 1040-0397
DOI - 10.1002/elan.200804489
Subject(s) - amperometry , biosensor , electrochemistry , mesoporous material , electrocatalyst , materials science , electron transfer , carbon fibers , electrode , reproducibility , glassy carbon , chemical engineering , inorganic chemistry , chemistry , nanotechnology , catalysis , chromatography , cyclic voltammetry , organic chemistry , composite material , composite number , engineering
A polythionine (PTH) functionalized ordered mesoporous carbon (OMC) material (PTH/OMC) was presented. The electrochemistry kinetic characteristics of this material are investigated and compared with pure OMC. The results showed that compared with OMC, PTH/OMC possesses a much higher electron transfer rate. For the application of this material, an electrocatalytic based NADH biosensor was constructed on glassy carbon electrode (GCE). Instead of 0.592 V on bare GCE and 0.206 V on OMC/GCE, the amperometric detection of NADH could be effectively performed on the present biosensor with operation potential be set at 0.0 V. In addition, the sensor showed good reproducibility and stability.