C60 trianion-mediated electrocatalysis and amperometric sensing of hydrogen peroxide

被引：26

作者：

Liu, Wei ^{[1
]}

Gao, Xiang ^{[1
]}

机构：

[1] Chinese Acad Sci, Changchun Inst Appl Chem, Grad Sch, State Key Lab Electroanalyt Chem, Changchun 130022, Peoples R China

来源：

ELECTROCHEMISTRY COMMUNICATIONS | 2008年 / 10卷 / 09期

关键词：

amperometric sensor; electrocatalytic reduction; fullerenes; hydrogen peroxide; lipid film;

D O I：

10.1016/j.elecom.2008.06.031

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Heterogeneous electrocatalytic reduction of hydrogen peroxide (H2O2) by C-60 is reported for the first time. C-60 is embedded in tetra octyl ammonium bromide (TOAB) film and is characterized by scanning electron microscopy and cyclic voltammetry. Electrocatalytic studies show that the trianion of C-60 mediates the electrocatalytic reduction of H2O2 in aqueous solution containing 0.1 M KCl. Application of such film modified electrode as an amperometric sensor for H2O2 determination is also examined. The sensor shows a fast response within 1 s and a linear response is obtained (R = 0.9986) in the concentration range from 3.33 x 10(-5) to 2.05 x 10(-3) mol L-1 for H2O2, with the detection limit of 2 x 10(-5) mol L-1 and the sensitivity of 1.65 mu A mM(-1). A good repeatability and stability is shown for the sensor during the experiment. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：1377 / 1380

页数：4

共 36 条

[1] Amperometric enzyme biosensor for hydrogen peroxide via Ugi multicomponent reaction [J].