期刊
CHEMISTRY-A EUROPEAN JOURNAL
卷 22, 期 30, 页码 10494-10500出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/chem.201601377
关键词
bilirubin oxidases; diazonium; metalloenzymes; nanotubes; oxygen reduction
资金
- Agence Nationale de la Recherche through the project CAROUCELL [ANR-13-BIOME-0003-02]
- ICMG Chemistry Nanobio Platform, Grenoble (PCN-ICMG)
- LabEx ARCANE [ANR-11-LABX-0003-01]
We report the controlled orientation of bilirubin oxidases (BOD) from Myrothecium verrucaria on multiwalled carbon nanotubes (MWCNTs) functionalised by electrografting of 6-carboxynaphthalenediazonium and 4-(2-aminoethyl)benzenediazonium salts. On negatively charged naphthoate-modified MWCNTs, a high-potential (0.44V vs. SCE) oxygen reduction electrocatalysis is observed, occurring via the T1 copper centre. On positively charged ammonium-modified MWCNTs, a low-potential (0.15V) oxygen reduction electrocatalysis is observed, occurring through a partially oxidised state of the T2/T3 trinuclear copper cluster. Finally, chemically modified naphthoate MWCNTs exhibit high bioelectrocatalytic current densities of 3.9mAcm(-2) under air at gas-diffusion electrode.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据