 Enhanced performance of microbial fuel cell with polyaniline/sodium alginate/carbon brush hydrogel bioanode and removal of CODYuyang Wang, Qing Wen, Ye Chen, Hongtao Zheng and Shuang Wang Energy, 2020, vol. 202, issue C Abstract: The use of capacitive and biocompatible anode materials is important for constructing microbial fuel cells (MFCs). Here, self-supporting polyaniline-sodium alginate/carbon brush (PANI-SA/CB) hydrogel was prepared by in situ polymerization as an MFC anode. The easily fabricated PANI–SA-conducting hydrogels showed great potential as electrode materials for MFC anodes. The maximum power density of MFCs equipped with PANI-SA/CB hydrogel bioanodes was 515 mW/m2, which was 1.38 times higher than that of the blank CB bioanode (373 mW/m2). During the charging-discharging experiment with 30 min of charging and 60 min of discharging, the stored charge Qs of the PANI-SA/CB hydrogel bioanode was 1984.42C/m2, 2.98 times higher than that of the blank CB bioanode (665.88C/m2). The robustness of our findings stems from the excellent capacitive properties of PANI-SA. These findings suggest that anode materials, such as the PANI-SA/CB hydrogel anode in MFCs, can function as biocapacitors, as they can simultaneously store electrons generated from microbial oxidation of substrates and release the accumulated charge. Keywords: Capacitive material; Energy storage; Green energy; Microbial fuel cell (search for similar items in EconPapers) Downloads: (external link) Related works: Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:202:y:2020:i:c:s0360544220308872 DOI: 10.1016/j.energy.2020.117780 Access Statistics for this article Energy is currently edited by Henrik Lund and Mark J. Kaiser More articles in Energy from Elsevier |
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