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Nanomaterials 2016, 6(9), 174; doi:10.3390/nano6090174

Effect of Graphene-Graphene Oxide Modified Anode on the Performance of Microbial Fuel Cell

Jiangsu Key Laboratory of Anaerobic Biotechnology, Jiangsu Cooperative Innovation Center of Technology and Material of Water Treatment, School of Environmental and Civil Engineering, Jiangnan University, Wuxi 214122, Jiangsu, China
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Authors to whom correspondence should be addressed.
Academic Editor: Lital Alfonta
Received: 15 May 2016 / Revised: 27 August 2016 / Accepted: 1 September 2016 / Published: 15 September 2016
(This article belongs to the Special Issue Nanostructured Biofuel Cells)
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Abstract

The inferior hydrophilicity of graphene is an adverse factor to the performance of the graphene modified anodes (G anodes) in microbial fuel cells (MFCs). In this paper, different amounts of hydrophilic graphene oxide (GO) were doped into the modification layers to elevate the hydrophilicity of the G anodes so as to further improve their performance. Increasing the GO doped ratio from 0.15 mg·mg−1 to 0.2 mg·mg−1 and 0.25 mg·mg−1, the static water contact angle (θc) of the G-GO anodes decreased from 74.2 ± 0.52° to 64.6 ± 2.75° and 41.7 ± 3.69°, respectively. The G-GO0.2 anode with GO doped ratio of 0.2 mg·mg−1 exhibited the optimal performance and the maximum power density (Pmax) of the corresponding MFC was 1100.18 mW·m−2, 1.51 times higher than that of the MFC with the G anode. View Full-Text
Keywords: graphene; graphene oxide (GO); microbial fuel cell (MFC); modified anode; hydrophilicity graphene; graphene oxide (GO); microbial fuel cell (MFC); modified anode; hydrophilicity
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Yang, N.; Ren, Y.; Li, X.; Wang, X. Effect of Graphene-Graphene Oxide Modified Anode on the Performance of Microbial Fuel Cell. Nanomaterials 2016, 6, 174.

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