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首页> 外文期刊>Electroanalysis >A carbon nanotube layered electrode for the construction of the wired bilirubin oxidase oxygen cathode
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A carbon nanotube layered electrode for the construction of the wired bilirubin oxidase oxygen cathode

机译：碳纳米管层状电极，用于构建有线胆红素氧化酶氧阴极

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摘要

Oxidatively treated carbon nanotubes were coated on a glassy carbon surface to form a CNT-layer. On the CNT-layered GC surface, a redox hydrogel film of the copolymer, of polyacryamide and poly(N-vinylimidazole) complexed with [Os(4,4'-dichloro-2,2'-bipyridine)_2Cl]~(+/2+) wiring bilirubin oxidase was immobilized. A good contact was achieved between the hydrogel film and the hydrophilic CNT-layer with carboxylated CNTs. The prepared bilirubin oxidase cathode on the CNT-layer was employed for the electrocatalytic reduction of O_2, and enhanced current and stability were observed. Electron transfers from the electrode surface O_2 molecules were analyzed. The optimal composition of the enzyme, redox polymer, and cross-linker in the catalyst and the thickness of the CNT-layer were determined.
机译：将经过氧化处理的碳纳米管涂在玻璃碳表面上，以形成CNT层。在CNT层的GC表面上，共聚物的聚丙烯酰胺和聚（N-乙烯基咪唑）与[Os（4,4'-dichloro-2,2'-bipyridine）_2Cl]络合的氧化还原水凝胶膜〜（+ / 2+）固定了布线胆红素氧化酶。在水凝胶膜和具有羧基化CNT的亲水性CNT层之间实现了良好的接触。在碳纳米管上制备的胆红素氧化酶阴极用于电催化还原O_2，观察到电流和稳定性的提高。分析了来自电极表面O_2分子的电子转移。确定了催化剂中酶，氧化还原聚合物和交联剂的最佳组成以及CNT层的厚度。

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