In-situ modified titanium suboxides with polyaniline/graphene as anode to enhance biovoltage production of microbial fuel cell |
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| Affiliation: | 1. School of Environment and Energy, South China University of Technology, Guangzhou, 510006, PR China;2. Key Laboratory of Subsurface Hydrology and Ecology in Arid Areas, Ministry of Education, Chang''an University, Xi''an 710054, PR China;3. UCD Dooge Centre for Water Resources Research, School of Civil Engineering, University College Dublin, Bel?eld, Dublin 4, Ireland;4. The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, South China University of Technology, Guangzhou, Guangdong 510006, PR China;1. Fraunhofer Institute for Ceramic Technologies and Systems IKTS, Winterbergstr. 28, 01277 Dresden, Germany;2. Max-Planck-Institut für Chemische Physik fester Stoffe, Nöthnitzer Straße 40, 01187 Dresden, Germany;3. Technical University of Dresden, Zum Triebenberg 50, 01328 Dresden (Zaschendorf), Germany;1. Institute for Clean Energy & Advanced Materials, Southwest University, Chongqing 400715, China;2. Chongqing Key Laboratory for Advanced Materials & Technologies of Clean Energies, Southwest University, Chongqing 400715, China;3. Faculty of Materials and Energy, Southwest University, Chongqing 400715, China |
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| Abstract: | Microbial fuel cell (MFC) has been the focus of much investigation in the search for harvesting electricity from various organic matters. The electrode material plays a key role in boosting MFC performance. Most studies, however, in the field of MFC electrode material has only focused on carbonaceous materials. The finding indicates that titanium suboxides (Ti4O7, TS) can provide a new alternative for achieving better performance. Polyaniline (PANI) together with graphene is chosen to in-situ modify TS (TSGP). The MFC reactor with TSGP anode achieves the highest voltage with 980 mV, and produces a peak power density of 2073 mW/m2, which is 2.9 and 12.7 times those with the carbon cloth control. The rather intriguing result could be due to the fact that TSGP has the high conductivity and large electrochemical active surface area, greatly improving the charge transfer ef?ciency and the bacterial bio?lm loading. This study has gone some way towards exploring the conducting ceramics materials in MFC. |
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| Keywords: | Microbial fuel cell Graphene Polyaniline Titanium suboxide Electrode material |
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