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Comparison of oxygen and hypochlorite as cathodic electron acceptor in microbial fuel cells.
Bioresour Technol. 2014 Feb; 154:330-5.BT

Abstract

Effect of oxygen and sodium hypochlorite (NaOCl) as cathodic electron acceptors on performance of a clayware microbial fuel cell (MFC) was evaluated in this study. Maximum power density of 6.57 W/m(3) was obtained with NaOCl as catholyte, which is about 9 times higher than oxygen being used as an electron acceptor. Voltammetry and Tafel analysis further supported the faster reduction kinetics lead to increase in power output and reduction in internal resistance of MFC operated with NaOCl as an electron acceptor. Using NaOCl as catholyte, higher exchange current density of 10.91 and 11.52 mA/m(2) and lower charge transfer resistance of 0.58 and 0.56 kΩ m(2) was observed for anode and cathode, respectively. Higher organic matter removal of about 90% with 25% Coulombic efficiency was achieved using NaOCl as catholyte. Higher internal resistance, lower cathode potential and slow reduction kinetics deteriorated performance of MFC using oxygen as cathodic electron acceptor.

Authors+Show Affiliations

School of Water Resources, Indian Institute of Technology, Kharagpur 721302, India.Department of Civil Engineering, Indian Institute of Technology, Kharagpur 721302, India.Department of Civil Engineering, Indian Institute of Technology, Kharagpur 721302, India.Department of Civil Engineering, Indian Institute of Technology, Kharagpur 721302, India. Electronic address: ghangrekar@civil.iitkgp.ernet.in.

Pub Type(s)

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

Language

eng

PubMed ID

24413450

Citation

Jadhav, D A., et al. "Comparison of Oxygen and Hypochlorite as Cathodic Electron Acceptor in Microbial Fuel Cells." Bioresource Technology, vol. 154, 2014, pp. 330-5.
Jadhav DA, Ghadge AN, Mondal D, et al. Comparison of oxygen and hypochlorite as cathodic electron acceptor in microbial fuel cells. Bioresour Technol. 2014;154:330-5.
Jadhav, D. A., Ghadge, A. N., Mondal, D., & Ghangrekar, M. M. (2014). Comparison of oxygen and hypochlorite as cathodic electron acceptor in microbial fuel cells. Bioresource Technology, 154, 330-5. https://doi.org/10.1016/j.biortech.2013.12.069
Jadhav DA, et al. Comparison of Oxygen and Hypochlorite as Cathodic Electron Acceptor in Microbial Fuel Cells. Bioresour Technol. 2014;154:330-5. PubMed PMID: 24413450.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Comparison of oxygen and hypochlorite as cathodic electron acceptor in microbial fuel cells. AU - Jadhav,D A, AU - Ghadge,A N, AU - Mondal,Debika, AU - Ghangrekar,M M, Y1 - 2013/12/22/ PY - 2013/11/07/received PY - 2013/12/12/revised PY - 2013/12/14/accepted PY - 2014/1/14/entrez PY - 2014/1/15/pubmed PY - 2014/9/18/medline KW - Electron acceptors KW - Hypochlorite KW - Microbial fuel cells KW - Oxygen KW - Tafel analysis SP - 330 EP - 5 JF - Bioresource technology JO - Bioresour Technol VL - 154 N2 - Effect of oxygen and sodium hypochlorite (NaOCl) as cathodic electron acceptors on performance of a clayware microbial fuel cell (MFC) was evaluated in this study. Maximum power density of 6.57 W/m(3) was obtained with NaOCl as catholyte, which is about 9 times higher than oxygen being used as an electron acceptor. Voltammetry and Tafel analysis further supported the faster reduction kinetics lead to increase in power output and reduction in internal resistance of MFC operated with NaOCl as an electron acceptor. Using NaOCl as catholyte, higher exchange current density of 10.91 and 11.52 mA/m(2) and lower charge transfer resistance of 0.58 and 0.56 kΩ m(2) was observed for anode and cathode, respectively. Higher organic matter removal of about 90% with 25% Coulombic efficiency was achieved using NaOCl as catholyte. Higher internal resistance, lower cathode potential and slow reduction kinetics deteriorated performance of MFC using oxygen as cathodic electron acceptor. SN - 1873-2976 UR - https://www.unboundmedicine.com/medline/citation/24413450/Comparison_of_oxygen_and_hypochlorite_as_cathodic_electron_acceptor_in_microbial_fuel_cells_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0960-8524(13)01909-3 DB - PRIME DP - Unbound Medicine ER -