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Turning Cellulose Waste Into Electricity: Hydrogen Conversion by a Hydrogenase Electrode |
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| Authors: | Sergey M. Abramov Elmira R. Sadraddinova Andrey I. Shestakov Oleg G. Voronin Arkadiy A. Karyakin Nikolay A. Zorin Alexander I. Netrusov |
| Affiliation: | 1. Biological Faculty of M.V. Lomonosov Moscow State University, Moscow, Russia.; 2. Chemical Faculty of M.V. Lomonosov Moscow State University, Moscow, Russia.; 3. Institute for Basic Problems of Biology RAS, Pushchino, Russia.; Louisiana State University and A & M College, United States of America, |
| Abstract: | Hydrogen-producing thermophilic cellulolytic microorganisms were isolated from cow faeces. Rates of cellulose hydrolysis and hydrogen formation were 0.2 mM L-1 h-1 and 1 mM L-1 h-1, respectively. An enzymatic fuel cell (EFC) with a hydrogenase anode was used to oxidise hydrogen produced in a microbial bioreactor. The hydrogenase electrode was exposed for 38 days (912 h) to a thermophilic fermentation medium. The hydrogenase activity remaining after continuous operation under load was 73% of the initial value. |
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