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首页> 外文期刊>Scientific reports. >Fabrication of Mediatorless/Membraneless Glucose/Oxygen Based Biofuel Cell using Biocatalysts Including Glucose Oxidase and Laccase Enzymes
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Fabrication of Mediatorless/Membraneless Glucose/Oxygen Based Biofuel Cell using Biocatalysts Including Glucose Oxidase and Laccase Enzymes

机译：使用葡萄糖氧化酶和漆酶酶的生物催化剂制造霉菌/膜基葡萄糖/氧的生物燃料电池

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摘要

Mediatorless and membraneless enzymatic biofuel cells (EBCs) employing new catalytic structure are fabricated. Regarding anodic catalyst, structure consisting of glucose oxidase (GOx), poly(ethylenimine) (PEI) and carbon nanotube (CNT) is considered, while three cathodic catalysts consist of glutaraldehyde (GA), laccase (Lac), PEI and CNT that are stacked together in different ways. Catalytic activities of the catalysts for glucose oxidation and oxygen reduction reactions (GOR and ORR) are evaluated. As a result, it is confirmed that the catalysts work well for promotion of GOR and ORR. In EBC tests, performances of EBCs including 150?μm-thick membrane are measured as references, while those of membraneless EBCs are measured depending on parameters like glucose flow rate, glucose concentration, distance between two electrodes and electrolyte pH. With the measurements, how the parameters affect EBC performance and their optimal conditions are determined. Based on that, best maximum power density (MPD) of membraneless EBC is 102?±?5.1?μW?·?cm(-2) with values of 0.5 cc?·?min(-1) (glucose flow rate), 40?mM (glucose concentration), 1?mm (distance between electrodes) and pH 3. When membrane and membraneless EBCs are compared, MPD of the membraneless EBC that is run at the similar operating condition to EBC including membrane is speculated as about 134?μW?·?cm(-2).
机译：制造使用新的催化结构的中霉和膜的生物燃料细胞（EBCs）。关于阳极催化剂，考虑由葡萄糖氧化酶（GOX），聚（乙基亚胺）（PEI）和碳纳米管（CNT）组成的结构，而三种阴极催化剂由戊二醛（GA），漆酶（LAC），PEI和CNT组成以不同的方式堆叠在一起。评估葡萄糖氧化和氧还原反应（GOR和ORR）的催化活性。结果，证实催化剂适用于促进GOR和ORR。在EBC测试中，将包括150μm厚膜的EBCs的性能作为参考文献测量，而膜除EBCS的性能取决于葡萄糖流速，葡萄糖浓度，两个电极之间的距离和电解质pH之间的参数测量。通过测量，如何影响EBC性能的参数以及它们的最佳条件。基于此，最佳最大功率密度（MPD）的膜eBC为102？±5.1？μW？·cm（-2），值为0.5 cc？·min（-1）（葡萄糖流量），40 ？mm（葡萄糖浓度），1？mm（电极之间的距离）和pH 3.当比较膜和膜的EBC时，在类似的操作条件下运行到包括膜的膜EBC的MPD被推测为约134？ μw？··cm（-2）。

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