Design of a bioelectrocatalytic electrode interface for oxygen reduction in biofuel cells based on a specifically adapted Os-complex containing redox polymer with entrapped Trametes hirsuta laccase

被引：51

作者：

Ackermann, Yvonne ^{[1
]}

Guschin, Dmitrii A. ^{[1
]}

Eckhard, Kathrin ^{[1
]}

Shleev, Sergey ^{[2
]}

Schuhmann, Wolfgang ^{[1
]}

机构：

[1] Ruhr Univ Bochum, D-44780 Bochum, Germany

[2] Malmo Univ, Fac Hlth & Soc, Biomed Lab Sci, SE-20506 Malmo, Sweden

来源：

ELECTROCHEMISTRY COMMUNICATIONS | 2010年 / 12卷 / 05期

基金：

瑞典研究理事会;

关键词：

Laccase; Oxygen reduction; Electrodeposition polymer; Redox polymer; Biofuel cell; PHYSIOLOGICAL BUFFER; AMPEROMETRIC BIOSENSORS; IMMOBILIZATION MATRIX; CATHODE; O-2; ELECTROREDUCTION; WATER;

D O I：

10.1016/j.elecom.2010.02.019

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The design of the coordination shell of an Os-complex and its integration within an electrodeposition polymer enables fast electron transfer between an electrode and a polymer entrapped high-potential laccase from the basidiomycete Trametes hitsuta. The redox potential of the Os3+/2+-centre tethered to the polymer backbone (+ 720 mV vs. NHE) is perfectly matching the potential of the enzyme (+ 780 mV vs. NHE at pH 6.5). The laccase and the Os-complex modified anodic electrodeposition polymer were simultaneously precipitated on the surface of a glassy carbon electrode by means of a pH-shift to 2.5. The modified electrode was investigated with respect to biocatalytic O-2 reduction to H2O. The proposed modified electrode has potential applications as biofuel cell cathode. (c) 2010 Elsevier B.V. All rights reserved.

引用

页码：640 / 643

页数：4

共 30 条

[1] Targetting redox polymers as mediators for laccase oxygen reduction in a membrane-less biofuel cell [J].