Power generation from a hybrid biological fuel cell in seawater
| Autor: | Robert Nichols, Peter K. Wu, Heather R. Luckarift, Justin C. Biffinger, Guinevere Strack, Glenn R. Johnson, Plamen Atanassov, Susan R. Sizemore, Karen E. Farrington |
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| Rok vydání: | 2013 |
| Předmět: |
Shewanella
Environmental Engineering Microbial fuel cell biology Bioelectric Energy Sources Renewable Energy Sustainability and the Environment Chemistry Inorganic chemistry Bioengineering General Medicine biology.organism_classification Electrocatalyst Cathode Anode law.invention Lactate oxidation Energy Transfer Species Specificity law Electrode Seawater Shewanella oneidensis Bilirubin oxidase Electrodes Waste Management and Disposal |
| Zdroj: | Bioresource Technology. 128:222-228 |
| ISSN: | 0960-8524 |
| Popis: | A hybrid biological fuel cell (HBFC) comprised of a microbial anode for lactate oxidation and an enzymatic cathode for oxygen reduction was constructed and then tested in a marine environment. Shewanella oneidensis DSP-10 was cultivated in laboratory medium and then fixed on a carbon felt electrode via a silica sol–gel process in order to catalyze anodic fuel cell processes. The cathode electrocatalyst was composed of bilirubin oxidase, fixed to a carbon nanotube electrode using a heterobifunctional cross linker, and then stabilized with a silica sol–gel coating. The anode and cathode half-cells provided operating potentials of −0.44 and 0.48 V, respectively (vs. Ag/AgCl). The HBFC maintained a reproducible open circuit voltage >0.7 V for 9 d in laboratory settings and sustained electrocatalytic activity for >24 h in open environment tests. |
| Databáze: | OpenAIRE |
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