期刊
BIORESOURCE TECHNOLOGY
卷 278, 期 -, 页码 279-286出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2019.01.097
关键词
Bioelectrochemical system; Microbial fuel cell; Membrane; Separator; Microbial community structure; Principal component analysis
资金
- New National Excellence Program of the Ministry of Human Capacities [UNKP-18-3]
- Janos Bolyai Research Scholarship of the Hungarian Academy of Sciences
- PHC Balaton program - French Embassy in Hungary/French Ministry of Europe and Foreign Affairs [40219WG]
- National Research, Development and Innovation Office in Hungary
- National Research, Development and Innovation Fund of Hungary
- National Research, Development and Innovation Fund of Hungary under the 2017-2.2.5-TET-FR funding scheme [2017-00015]
In this study, microbial fuel cells (MFCs) - operated with novel cation- and anion-exchange membranes, in particular AN-VPA 60 (CEM) and PSEBS DABCO (AEM) - were assessed comparatively with Nafion proton exchange membrane (PEM). The process characterization involved versatile electrochemical (polarization, electrochemical impedance spectroscopy - EIS, cyclic voltammetry - CV) and biological (microbial structure analysis) methods in order to reveal the influence of membrane-type during start-up. In fact, the use of AEM led to 2-5 times higher energy yields than CEM and PEM and the lowest MFC internal resistance (148 +/- 17 Omega) by the end of start-up. Regardless of the membrane-type, Geobacter was dominantly enriched on all anodes. Besides, CV and EIS measurements implied higher anode surface coverage of redox compounds for MFCs and lower membrane resistance with AEM, respectively. As a result, AEM based on PSEBS DABCO could be found as a promising material to substitute Nafion.
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