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Change in electrogenic activity of the microbial fuel cell (MFC) with the function of biocathode microenvironment as terminal electron accepting condition: influence on overpotentials and bio-electro kinetics.
Bioresour Technol. 2012 Sep; 119:241-51.BT

Abstract

Influence of biocathode microenvironment as terminal electron accepting process (TEAP) on the electrogenic activity of the microbial fuel cell (MFC)/bio-electrochemical system (BES) was evaluated in concurrence with the internal losses and bio-electro kinetics. Aerobic metabolism as TEAP showed power output (37.5 ± 2.7 mW/m(2)) for extended time (240 h) over abiotic (42.5 ± 1.5 mW/m(2)) electron accepting process. On the contrary, anaerobic metabolism as TEAP showed negligible power output in spite of increased retention time due to the absence of electron acceptor. Presence of strong electron acceptor conditions in aerobic metabolism facilitated gradual and stable reduction of electrons which helped to overcome the activation over potential and other potential losses. Voltammetric and amperometric analysis witnessed higher and sustainable electron discharge against the aerobic metabolism at cathode. Bio-electro kinetic analysis also showed lower Tafel slope and electron transfer co-efficient indicating the positive impact of aerobic metabolism at cathode in decreasing the internal losses.

Authors+Show Affiliations

Bioengineering and Environmental Centre (BEEC), CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad 500 607, India.No affiliation info available

Pub Type(s)

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

Language

eng

PubMed ID

22728788

Citation

Srikanth, S, and S Venkata Mohan. "Change in Electrogenic Activity of the Microbial Fuel Cell (MFC) With the Function of Biocathode Microenvironment as Terminal Electron Accepting Condition: Influence On Overpotentials and Bio-electro Kinetics." Bioresource Technology, vol. 119, 2012, pp. 241-51.
Srikanth S, Venkata Mohan S. Change in electrogenic activity of the microbial fuel cell (MFC) with the function of biocathode microenvironment as terminal electron accepting condition: influence on overpotentials and bio-electro kinetics. Bioresour Technol. 2012;119:241-51.
Srikanth, S., & Venkata Mohan, S. (2012). Change in electrogenic activity of the microbial fuel cell (MFC) with the function of biocathode microenvironment as terminal electron accepting condition: influence on overpotentials and bio-electro kinetics. Bioresource Technology, 119, 241-51. https://doi.org/10.1016/j.biortech.2012.05.097
Srikanth S, Venkata Mohan S. Change in Electrogenic Activity of the Microbial Fuel Cell (MFC) With the Function of Biocathode Microenvironment as Terminal Electron Accepting Condition: Influence On Overpotentials and Bio-electro Kinetics. Bioresour Technol. 2012;119:241-51. PubMed PMID: 22728788.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Change in electrogenic activity of the microbial fuel cell (MFC) with the function of biocathode microenvironment as terminal electron accepting condition: influence on overpotentials and bio-electro kinetics. AU - Srikanth,S, AU - Venkata Mohan,S, Y1 - 2012/05/30/ PY - 2012/03/28/received PY - 2012/05/07/revised PY - 2012/05/11/accepted PY - 2012/6/26/entrez PY - 2012/6/26/pubmed PY - 2012/12/22/medline SP - 241 EP - 51 JF - Bioresource technology JO - Bioresour Technol VL - 119 N2 - Influence of biocathode microenvironment as terminal electron accepting process (TEAP) on the electrogenic activity of the microbial fuel cell (MFC)/bio-electrochemical system (BES) was evaluated in concurrence with the internal losses and bio-electro kinetics. Aerobic metabolism as TEAP showed power output (37.5 ± 2.7 mW/m(2)) for extended time (240 h) over abiotic (42.5 ± 1.5 mW/m(2)) electron accepting process. On the contrary, anaerobic metabolism as TEAP showed negligible power output in spite of increased retention time due to the absence of electron acceptor. Presence of strong electron acceptor conditions in aerobic metabolism facilitated gradual and stable reduction of electrons which helped to overcome the activation over potential and other potential losses. Voltammetric and amperometric analysis witnessed higher and sustainable electron discharge against the aerobic metabolism at cathode. Bio-electro kinetic analysis also showed lower Tafel slope and electron transfer co-efficient indicating the positive impact of aerobic metabolism at cathode in decreasing the internal losses. SN - 1873-2976 UR - https://www.unboundmedicine.com/medline/citation/22728788/Change_in_electrogenic_activity_of_the_microbial_fuel_cell__MFC__with_the_function_of_biocathode_microenvironment_as_terminal_electron_accepting_condition:_influence_on_overpotentials_and_bio_electro_kinetics_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0960-8524(12)00852-8 DB - PRIME DP - Unbound Medicine ER -