A biofuel cell with enhanced performance by multilayer biocatalyst immobilized on highly ordered macroporous electrode
A biofuel cell with enhanced performance by multilayer biocatalyst immobilized on highly ordered macroporous electrode
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DOI：
10.1016/j.bios.2008.04.006
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发表时间：
2008-10-15
影响因子：
12.6
通讯作者：
Dong, Shaojun
中科院分区：
文献类型：
--
作者：
Deng, Liu;Wang, Fuan;Dong, Shaojun
单室葡萄糖/O-2。描述了一种基于三维有序大孔（3DOM）金电极上的静电逐层（LbL）技术的生物燃料电池。采用反相胶体晶体模板法制备了3DOM金电极。然后用Au纳米粒子（AuNPs）和酶（葡萄糖脱氢酶（GDH）或漆酶）功能化大孔金电极。（AuNPs/GDH）（n）多层修饰大孔金电极对葡萄糖表现出优异的生物电催化活性。在3DOM金电极上制备的（AuNPs/漆酶）（n）膜上实现了直接电还原氧。在226 mV时，以大孔膜为基质的电池的最大功率密度为178 μ W cm（-2），是相同条件下平板电极的16倍。该方法简单，适用于提高小型生物燃料电池的输出功率。(C)2008 Elsevier B. V.保留所有权利。
A one-compartment glucose/O-2. biofuel cell based on an electrostatic layer-by-layer (LbL) technique on three-dimensional ordered macroporous (3DOM) gold electrode was described. A 3DOM gold electrode was synthesized electrochemically by an inverted colloidal crystal template technique. Then the macroporous gold electrodes were functionalized with Au nanoparticles (AuNPs) and enzyme, glucose dehydrogenase (GDH) or laccase. The (AuNPs/GDH)(n) multilayer modified macroporous gold electrode showed excellent bioelectrocatalytic activity towards glucose. The direct electroreduction towards oxygen was realized at (AuNPs/laccase)(n) films on 3DOM gold electrodes. The maximum power density of the cell with the macroporous film as matrix was 178 mu W cm(-2) at 226 mV, which was 16 times larger than that of the biofuel cell with the flat electrode under the same condition. The proposed method is simple and would be applicable to enhance the power output of miniaturized biofuel cell. (C) 2008 Elsevier B.V. All rights reserved.