Mo2C/Reduced Graphene Oxide Composites with Enhanced Electrocatalytic Activity and Biocompatibility for Microbial Fuel Cells |
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| Authors: | Wenxian Guo Dr Meiqiong Chen Dr Xiaoqing Liu Prof Faliang Cheng Prof Xihong Lu |
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| Institution: | 1. School of Urban Construction and Environment, City College of Dongguan University of Technology, Dongguan, Guangdong, 523419 P. R. China;2. MOE of the Key Laboratory of Bioinorganic and Synthetic Chemistry, The Key Lab of Low-carbon Chem & Energy Conservation of Guangdong Province, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275 P. R. China;3. School of Environment and Civil Engineering, Guangdong Engineering and Technology Research Center for, Advanced Nanomaterials, Dongguan University of Technology, Guangdong, 523808 P. R. China |
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| Abstract: | A simple, cost-effective strategy was developed to effectively improve the electron transfer efficiency as well as the power output of microbial fuel cells (MFCs) by decorating the commercial carbon paper (CP) anode with an advanced Mo2C/reduced graphene oxide (Mo2C/RGO) composite. Benefiting from the synergistic effects of the superior electrocatalytic activity of Mo2C, the high surface area, and prominent conductivity of RGO, the MFC equipped with this Mo2C/RGO composite yielded a remarkable output power density of 1747±37.6 mW m−2, which was considerably higher than that of CP-MFC (926.8±6.3 mW m−2). Importantly, the composite also facilitated the formation of 3D hybrid biofilm and could effectively improve the bacteria–electrode interaction. These features resulted in an enhanced coulombic efficiency up 13.2 %, nearly one order of magnitude higher than that of the CP (1.2 %). |
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| Keywords: | anode electrocatalytic activity microbial fuel cells Mo2C/graphene oxide nanocomposites |
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