TY - JOUR

T1 - Electric power generation by a submersible microbial fuel cell equipped with a membrane electrode assembly

A1 - Min,Booki

A1 - Poulsen,Finn Willy

A1 - Thygesen,Anders

A1 - Angelidaki,Irini

AU - Min,Booki

AU - Poulsen,Finn Willy

AU - Thygesen,Anders

AU - Angelidaki,Irini

PB - Elsevier BV

PY - 2012

Y1 - 2012

N2 - Membrane electrode assemblies (MEAs) were incorporated into the cathode chamber of a submersible microbial fuel cell (SMFC). A close contact of the electrodes could produce high power output from SMFC in which anode and cathode electrodes were connected in parallel. In polarization test, the maximum power density was 631mW/m2 at current density of 1772mA/m2 at 82Ω. With 180-Ω external resistance, one set of the electrodes on the same side could generate more power density of 832±4mW/m2 with current generation of 1923±4mA/m2. The anode, inclusive a biofilm behaved ohmic, whereas a Tafel type behavior was observed for the oxygen reduction. The various impedance contributions from electrodes, electrolyte and membrane were analyzed and identified by electrochemical impedance spectroscopy. Air flow rate to the cathode chamber affected microbial voltage generation, and higher power generation was obtained at relatively low air flow less than 2mL/min.

AB - Membrane electrode assemblies (MEAs) were incorporated into the cathode chamber of a submersible microbial fuel cell (SMFC). A close contact of the electrodes could produce high power output from SMFC in which anode and cathode electrodes were connected in parallel. In polarization test, the maximum power density was 631mW/m2 at current density of 1772mA/m2 at 82Ω. With 180-Ω external resistance, one set of the electrodes on the same side could generate more power density of 832±4mW/m2 with current generation of 1923±4mA/m2. The anode, inclusive a biofilm behaved ohmic, whereas a Tafel type behavior was observed for the oxygen reduction. The various impedance contributions from electrodes, electrolyte and membrane were analyzed and identified by electrochemical impedance spectroscopy. Air flow rate to the cathode chamber affected microbial voltage generation, and higher power generation was obtained at relatively low air flow less than 2mL/min.

KW - Microbial fuel cell

KW - Membrane electrode assembly

KW - Submersible microbial fuel cell

KW - Voltage generation

KW - Electrochemical impedance spectroscopy

U2 - 10.1016/j.biortech.2012.04.097

DO - 10.1016/j.biortech.2012.04.097

JO - Bioresource Technology

JF - Bioresource Technology

SN - 0960-8524

VL - 118

SP - 412

EP - 417

ER -