Direct Electrochemistry of Catalase on Single Wall Carbon Nanotubes Modified Glassy Carbon Electrode

Direct electrochemistry of catalase (Ct) has been studied on single wall carbon nanotubes (SWNTs) modified glassy carbon (GC) electrode. A pair of well-defined nearly reversible redox peaks is given at --0.48 V (vs. SCE) in 0.1 mol/L phosphate solution (pH 7.0).The peak current in cyclic voltammogra...

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Bibliographic Details
Published in中国化学快报（英文版） Vol. 16; no. 4; pp. 501 - 504
Main Authors Qiang ZHAO, Lun Hui GUAN, Zhen Nan GU, Qian Kun ZHUANG
Format Journal Article
LanguageEnglish
Published College of Chemistry and Molecular Engineering, Peking University, Beijing 100871 01.04.2005
Subjects
Carbon nanotubes
cyclic voltammetry
modified electrode
catalase
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Summary:Direct electrochemistry of catalase (Ct) has been studied on single wall carbon nanotubes (SWNTs) modified glassy carbon (GC) electrode. A pair of well-defined nearly reversible redox peaks is given at --0.48 V (vs. SCE) in 0.1 mol/L phosphate solution (pH 7.0).The peak current in cyclic voltammogram is proportional to the scan rate. The peak potential of catalase is shifted to more negative value when the pH increases. Catalase can adsorb on the SWNTs modified electrode.
ISSN:1001-8417