TY - JOUR
T1 - A microbial fuel cell operating at low pH using the acidophile Acidiphilium cryptum
AU - Borole, Abhijeet P.
AU - O'Neill, Hugh
AU - Tsouris, Costas
AU - Cesar, Scott
PY - 2008/8
Y1 - 2008/8
N2 - For the first time, a microbial fuel cell has been developed using an acidophile, Acidiphilium cryptum, as the anode biocatalyst. Electricity production using its natural electron acceptor, iron, as the electron mediating agent at pH values ≤4.0 was demonstrated. Accumulation of Fe(III) at the electrode, however, restricted current output. The combination of nitrilotriacetic acid and Phenosafranin as electron mediators increased the power output to 12.7 mW/m2 in a two-chamber air-sparged fuel cell. Direct electron transfer from the microorganisms to the anode was also investigated but was not detected under the conditions studied.
AB - For the first time, a microbial fuel cell has been developed using an acidophile, Acidiphilium cryptum, as the anode biocatalyst. Electricity production using its natural electron acceptor, iron, as the electron mediating agent at pH values ≤4.0 was demonstrated. Accumulation of Fe(III) at the electrode, however, restricted current output. The combination of nitrilotriacetic acid and Phenosafranin as electron mediators increased the power output to 12.7 mW/m2 in a two-chamber air-sparged fuel cell. Direct electron transfer from the microorganisms to the anode was also investigated but was not detected under the conditions studied.
KW - Acidiphilium cryptum
KW - Acidophile
KW - Biofuel cell
KW - Electricity
KW - Mediated electron transfer
UR - http://www.scopus.com/inward/record.url?scp=45849102051&partnerID=8YFLogxK
U2 - 10.1007/s10529-008-9700-y
DO - 10.1007/s10529-008-9700-y
M3 - Article
C2 - 18368296
AN - SCOPUS:45849102051
SN - 0141-5492
VL - 30
SP - 1367
EP - 1372
JO - Biotechnology Letters
JF - Biotechnology Letters
IS - 8
ER -
