Bioelectrocatalysis: Achievement of Limiting Enzyme Performance Characteristics in Acceleration of Electrode Reactions
The anticipated crisis in energy production has stimulated a search for alternative energy sources. The only useful alternative to platinum based electrocatalysis for H2 oxidation is bioelectrocatalysis by hydrogenases, first reported by our group 25 years ago 1. Bioelectrocatalysis is a phenomenon of acceleration of electrode reactions by the enzymes. Direct bioelectrocatalysis presumes the direct electron exchange between the enzyme active site and the electrode without any use of diffusion free mediators. After immersion into H2-saturated solution, the hydrogenase electrode reached the equilibrium hydrogen potential. At positive overvoltages the hydrogenase electrode generated high anodic current, which can be attributed only to hydrogen oxidation. Cathodic current at negative overvoltages has been proven to occur due to H2 evolution.
Arkady A. KARYAKIN Oleg G. VORONIN Fedor A. FEDOTENKOV Darya V. VOKHMYANINA Stanislav A. TRASHIN Elena E. KARYAKINA
Chemistry faculty of M.V. Lomonosov Moscow State University, 119991, Moscow, Russia
国际会议
The Twelfth International Symposium on Electroanalytical Chemistry(第十二届国际电分析化学会议 12th ISEC)
长春
英文
53-54
2009-08-12（万方平台首次上网日期，不代表论文的发表时间）