期刊
BIOSENSORS & BIOELECTRONICS
卷 31, 期 1, 页码 170-175出版社
ELSEVIER ADVANCED TECHNOLOGY
DOI: 10.1016/j.bios.2011.10.011
关键词
Carbon nanotubes; Ferrocenecarboxaldehyde; Silk films; Glucose oxidase; Biofuel cells
类别
资金
- National Basic Research Program of China [2009CB421601]
- NSFC [20975033, 20905024]
- Program for Changjiang Scholars and Innovative Research Team in University (PCSIRT)
A high-performance bioanode based on the composite of carbon nanotubes (CNTs)-immobilized mediator and silk film (SF)-immobilized glucose oxidase (GOD) was developed for glucose/O-2 biofuel cell (BFC). Ferrocenecarboxaldehyde (Fc) was used as the mediator and covalently immobilized on the ethylenediamine (EDA)-functionalized CNTs (CNTs-EDA). GOD was cross-linked on the SF with glutaraldehyde (GA) as the cross-linking agent. The resulting electrode (CNTs-Fc/SF-GOD/glassy carbon (GC) electrode) exhibited good catalytic activity towards glucose oxidation and excellent stability. For the assembled glucose/O-2 BFC with the CNTs-Fc/SF-GOD/GC electrode as the bioanode and a commercial E-TEK Pt/C modified GC electrode as the cathode, the open circuit potential is 0.48 V and the maximum power density of 50.70 mu W cm(-2) can be achieved at 0.15V. (C) 2011 Elsevier B.V. All rights reserved.
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