期刊
ENERGY TECHNOLOGY
卷 6, 期 2, 页码 257-262出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/ente.201700177
关键词
microbial fuel cells; nanostructures; oxygen reduction reaction; photoanode; titania
资金
- DGIST R&D Program of the Ministry of Education, Science and Technology of Korea [17-BD-0404, 17-01-HRLA-01]
- Basic Science research program through the National Research Foundation of Korea - Ministry of Science, ICT & Future Planning [2013R1A1A008678, 2014K1A3A1A47067086]
- Technology Development Program to Solve Climate Changes of the National Research Foundation (NRF) - Ministry of Science, ICT & Future Planning [2015M1A2A2074670]
- Ministry of Science & ICT (MSIT), Republic of Korea [17-BD-0404, 17-01-HRLA-01] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
- National Research Foundation of Korea [2014K1A3A1A47067086] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
Microbial fuel cells (MFCs) received considerable attention because of their ability to provide dual advantages of electricity generation and wastewater treatment. However, their performance is primarily limited by the slow oxygen reduction reaction (ORR). To alleviate this problem, we describe a hybrid MFC in which a conventional bioanode is coupled with a TiO2 photoanode. The photocatalytic photoanode utilizes light to provide additional photogenerated electrons to the external circuit of the MFC, which promotes the ORR, as confirmed by power density curves and electrochemical impedance spectra, resulting in improved power generation (1284 +/- 20 mWm(-2)) compared to that of a normal MFC (850 +/- 12 mWm(-2)). Furthermore, the ability of the TiO2 photoanode to reduce CO2 to methane is demonstrated.
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