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Enhanced performance of air-cathode two-chamber microbial fuel cells with high-pH anode and low-pH cathode.
Bioresour Technol. 2010 May; 101(10):3514-9.BT

Abstract

In the course of microbial fuel cell (MFC) operation, the acidification of the anode and the alkalization of the cathode inevitably occur, resulting in reduction of the overall performance. In an attempt to reverse the membrane pH gradient, a tubular air-cathode two-chamber MFC was developed that allowed pH adjustment in both compartments. With an anodic pH of 10.0 and a cathodic pH of 2.0, the tubular MFC provided an open circuit voltage of 1.04V and a maximum power density of 29.9W/m(3), which were respectively 1.5 and 3.8 times higher than those obtained in the same MFC working at neutral pH. Particularly, the suppression of methanogenesis at high alkaline anode (pH 10.0) contributed to a significant enhancement in coulombic efficiency. The MFC maintained 74% of its performance after 15 days of operation in continuous-flow mode. The appropriate pH adjustment strategy in both compartments ensures a promising improvement in MFC performance.

Authors+Show Affiliations

Guangdong Institute of Eco-environmental and Soil Sciences, 808 Tianyuan Road, Guangzhou 510650, China.No affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

20093009

Citation

Zhuang, Li, et al. "Enhanced Performance of Air-cathode Two-chamber Microbial Fuel Cells With high-pH Anode and low-pH Cathode." Bioresource Technology, vol. 101, no. 10, 2010, pp. 3514-9.
Zhuang L, Zhou S, Li Y, et al. Enhanced performance of air-cathode two-chamber microbial fuel cells with high-pH anode and low-pH cathode. Bioresour Technol. 2010;101(10):3514-9.
Zhuang, L., Zhou, S., Li, Y., & Yuan, Y. (2010). Enhanced performance of air-cathode two-chamber microbial fuel cells with high-pH anode and low-pH cathode. Bioresource Technology, 101(10), 3514-9. https://doi.org/10.1016/j.biortech.2009.12.105
Zhuang L, et al. Enhanced Performance of Air-cathode Two-chamber Microbial Fuel Cells With high-pH Anode and low-pH Cathode. Bioresour Technol. 2010;101(10):3514-9. PubMed PMID: 20093009.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Enhanced performance of air-cathode two-chamber microbial fuel cells with high-pH anode and low-pH cathode. AU - Zhuang,Li, AU - Zhou,Shungui, AU - Li,Yongtao, AU - Yuan,Yong, Y1 - 2010/01/25/ PY - 2009/08/17/received PY - 2009/12/21/revised PY - 2009/12/23/accepted PY - 2010/1/23/entrez PY - 2010/1/23/pubmed PY - 2010/5/15/medline SP - 3514 EP - 9 JF - Bioresource technology JO - Bioresour Technol VL - 101 IS - 10 N2 - In the course of microbial fuel cell (MFC) operation, the acidification of the anode and the alkalization of the cathode inevitably occur, resulting in reduction of the overall performance. In an attempt to reverse the membrane pH gradient, a tubular air-cathode two-chamber MFC was developed that allowed pH adjustment in both compartments. With an anodic pH of 10.0 and a cathodic pH of 2.0, the tubular MFC provided an open circuit voltage of 1.04V and a maximum power density of 29.9W/m(3), which were respectively 1.5 and 3.8 times higher than those obtained in the same MFC working at neutral pH. Particularly, the suppression of methanogenesis at high alkaline anode (pH 10.0) contributed to a significant enhancement in coulombic efficiency. The MFC maintained 74% of its performance after 15 days of operation in continuous-flow mode. The appropriate pH adjustment strategy in both compartments ensures a promising improvement in MFC performance. SN - 1873-2976 UR - https://www.unboundmedicine.com/medline/citation/20093009/Enhanced_performance_of_air_cathode_two_chamber_microbial_fuel_cells_with_high_pH_anode_and_low_pH_cathode_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0960-8524(09)01803-3 DB - PRIME DP - Unbound Medicine ER -