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A completely anoxic microbial fuel cell using a photo-biocathode for cathodic carbon dioxide reduction
Abstract
Typical microbial fuel cells (MFCs) rely on precious metals for reduction of oxygen at the cathode, but recently MFCs have been developed that use biocathodes for power generation with alternate electron acceptors. It is shown here that with illumination it is possible to develop a biocathode that uses dissolved carbon dioxide (bicarbonate) as the acceptor. During acclimation, the cathode was set at a potential of 0.242 V (vs.SHE) using a potentiostat. After approximately one month of acclimation, a current of 1 mA was sustained. Bicarbonate was reduced in stoichiometric agreement with current generation, with 0.28 ± 0.02 moles of bicarbonate reduced per mole of electrons. When this biocathode was used in a two-bottle MFC, a power density of 750 mW m−2 was produced. These results demonstrate that MFCs can be used to fix carbon dioxide as well as produce electricity.
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Cites
Ferrous iron oxidation by anoxygenic phototrophic bacteria
Widdel, F., Schnell, S., Heising, S., Ehrenreich, A., Assmus, B., & Schink, B. (1993) · Nature · doi:10.1038/362834a0 · Cited by 735
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Metal-Free Catalysts for Oxygen Reduction Reaction
Dai, L., Xue, Y., Qu, L., Choi, H.-J., & Baek, J.-B. (2015) · Chemical Reviews · doi:10.1021/cr5003563 · Cited by 2,380
Anion-exchange membranes in electrochemical energy systems
Varcoe, J. R., Atanassov, P., Dekel, D. R., Herring, A. M., Hickner, M. A., Kohl, P. A., Kucernak, A. R., Mustain, W. E., Nijmeijer, K., Scott, K., et al. (2014) · Energy Environ. Sci. · doi:10.1039/c4ee01303d · Cited by 2,051
Velvizhi, G., Shanthakumar, S., Das, B., Pugazhendhi, A., Priya, T. S., Ashok, B., Nanthagopal, K., Vignesh, R., & Karthick, C. (2020) · Science of The Total Environment · doi:10.1016/j.scitotenv.2020.138049 · Cited by 160
Elshobary, M. E., Zabed, H. M., Yun, J., Zhang, G., & Qi, X. (2021) · International Journal of Hydrogen Energy · doi:10.1016/j.ijhydene.2020.06.251 · Cited by 158
Du, L., Xing, L., Zhang, G., Dubois, M., & Sun, S. (2020) · Small Methods · doi:10.1002/smtd.202000016 · Cited by 91
Metadata
- Authors
- Cao, X., Huang, X., Liang, P., Boon, N., Fan, M., Zhang, L., & Zhang, X.
- Venue
- Energy & Environmental Science
- Publisher
- Royal Society of Chemistry (RSC)
- Published
- 2009
- Volume
- 2
- Issue
- 5
- Pages
- 498
- ISSN
- 1754-5692 (ISSN-L)
- 1754-5706
- OpenAlex
- W1971037371
- Cited by
- 168
- References
- 1
- FWCI
- 14.16
- Type
- journal article
- Language
- en
- Open access
- closed
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- Cao, X., Huang, X., Liang, P., Boon, N., Fan, M., Zhang, L., & Zhang, X. (2009). A completely anoxic microbial fuel cell using a photo-biocathode for cathodic carbon dioxide reduction. Energy & Environmental Science. https://doi.org/10.1039/b901069f
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