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A Membraneless Glucose/O_2 Biofuel Cell Based on Pd Aerogels

机译:基于Pd气凝胶的无膜葡萄糖/ O_2生物燃料电池

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摘要

In this study, we introduce the first membraneless glucose/O_2 biofuel cell using Pd-based aerogels as electrode materials. The bioanode was fabricated with a coimmobilized mediator and glucose oxidase for the oxidation of glucose, in which ferrocenecarboxylic acid was integrated into a three-dimensional porous beta-cyclodextrin-modified Pd aerogel to mediate the bioelectrocatalytic reaction. Bilirubin oxidase and Pd-Pt alloy aerogel were confined to an electrode surface, which realized the direct bioelectrocatalytic function for the reduction of O_2 to H_2O with a synergetic effect at the biocathode. By employing these two bioelectrodes, the assembled glucose/O_2 biofuel cell showed a maximum power output of 20 mWcm~(-2) at 0.25 V.
机译:在这项研究中,我们介绍了第一个使用基于Pd的气凝胶作为电极材料的无膜葡萄糖/ O_2生物燃料电池。用共固定的介体和葡萄糖氧化酶制造生物阳极以氧化葡萄糖,其中二茂铁羧酸被整合到三维多孔β-环糊精修饰的Pd气凝胶中以介导生物电催化反应。胆红素氧化酶和Pd-Pt合金气凝胶被限制在电极表面,从而实现了直接的生物电催化功能,在生物阴极上具有协同作用,将O_2还原为H_2O。通过使用这两个生物电极,组装好的葡萄糖/ O_2生物燃料电池在0.25 V电压下的最大功率输出为20 mWcm〜(-2)。

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