Abstract New catalyst for promoting oxygen reduction reaction (ORR) and enzymatic biofuel cell (EBC) performance is suggested. The catalyst consist of laccase (LAC) and gold nanoparticle (GNP)-naphthalenethiol (NPT), which are linked to polyethyleneimine (PEI) and carbon nanotube (CNT) (CNT/PEI/[GNP-NPT]/LAC). Its onset potential and ORR rate are improved due to adoptions of PEI and GNP-NPT. Namely, CNT/PEI induces more immobilization of LACs and GNP-NPT acts as electron relay between CNP and NPT by thiol-gold bond and between CNT/PEI and LACs by electron collection effect. Even in EBC measurement, maximum power density of EBC using CNT/PEI/[GNP-NPT]/LAC is highest as 13 μW cm−2.

中文翻译：

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由漆酶和金纳米颗粒组成的阴极生物催化剂，用于提高氧还原反应速率和酶促生物燃料电池性能

摘要 提出了用于促进氧还原反应 (ORR) 和酶促生物燃料电池 (EBC) 性能的新型催化剂。该催化剂由漆酶 (LAC) 和金纳米颗粒 (GNP)-萘硫醇 (NPT) 组成，它们与聚乙烯亚胺 (PEI) 和碳纳米管 (CNT) (CNT/PEI/[GNP-NPT]/LAC) 相连。由于采用了 PEI 和 GNP-NPT，其发病潜力和 ORR 率得到了提高。即，CNT/PEI 诱导更多的 LACs 固定，GNP-NPT 通过硫醇-金键在 CNP 和 NPT 之间以及通过电子收集效应在 CNT/PEI 和 LACs 之间充当电子中继。即使在 EBC 测量中，使用 CNT/PEI/[GNP-NPT]/LAC 的 EBC 的最大功率密度也高达 13 μW cm-2。