期刊
ELECTROCHIMICA ACTA
卷 56, 期 28, 页码 10378-10384出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.electacta.2011.01.101
关键词
Layered double hydroxides; Biofuel cell; Glucose oxidase; Laccase
In this work, two layered double hydroxides, Zn2Cr-ABTS and Zn2Al-Fe(CN)(6) LDH, have been synthesized and characterized by X ray diffraction and FTIR spectroscopy to confirm the intercalation of redox anions between inorganic layers. These redox active hybrid materials have been used to electrically connect laccase (Lac) and glucose oxidase (GOx) in biofuel cell devices. Co-immobilization of hybrid LDH and enzymes has been performed by entrapment in electropolymerized films of polypyrrole deposited on porous carbon tubular electrodes. Lac/Zn2Cr-ABTS cathodic electrode allows the electro-enzymatic reduction of O-2, whereas the anodic electrode GOx/Zn2Al-Fe-III(CN)(6) was used for the electro-enzymatic oxidation of glucose. with a two compartment configuration, a maximum power density of 45 mu W cm(-2) was obtained at 0.2 V. (C) 2011 Elsevier Ltd. All rights reserved.
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