Electrochemical reduction of oxygen with iron phthalocyanine in neutral media
Electrochemical reduction of oxygen with iron phthalocyanine in neutral media
Recent interest in electricity production using microbial fuel cells makes it important to better understand O2 reduction in neutral solutions with non-precious metal catalysts. Higher O2 reduction activity was obtained using iron phthalocyanine supported on Ketjen black carbon (FePc-KJB) than with a platinum catalyst in neutral pH. At low overpotentials, a Tafel slope close to -0.06 V/dec in both acid and neutral pH suggested that the mechanism of O2 reduction on FePc is not changed with the change of pH, and the reaction is mainly controlled by FeII/FeIII redox couple. This behaviour gives us new insight into catalysis using FePc, and further supports the use of FePc as a promising catalyst for the oxygen reduction applications in neutral media.
EIS, Iron phthalocyanine, Microbial fuel cells, Oxygen reduction, Redox couple
705-711
Yu, Eileen Hao
28e47863-4b50-4821-b80b-71fb5a2edef2
Cheng, Shaoan
dae40ba0-28a2-430f-987b-207828b9ca36
Logan, Bruce E.
18b1ca68-0a80-44b9-af4d-3366432ac950
Scott, Keith
38909157-296d-4fe7-a245-1b98e1fee913
May 2009
Yu, Eileen Hao
28e47863-4b50-4821-b80b-71fb5a2edef2
Cheng, Shaoan
dae40ba0-28a2-430f-987b-207828b9ca36
Logan, Bruce E.
18b1ca68-0a80-44b9-af4d-3366432ac950
Scott, Keith
38909157-296d-4fe7-a245-1b98e1fee913
Yu, Eileen Hao, Cheng, Shaoan, Logan, Bruce E. and Scott, Keith
(2009)
Electrochemical reduction of oxygen with iron phthalocyanine in neutral media.
Journal of Applied Electrochemistry, 39 (5), .
(doi:10.1007/s10800-008-9712-2).
Abstract
Recent interest in electricity production using microbial fuel cells makes it important to better understand O2 reduction in neutral solutions with non-precious metal catalysts. Higher O2 reduction activity was obtained using iron phthalocyanine supported on Ketjen black carbon (FePc-KJB) than with a platinum catalyst in neutral pH. At low overpotentials, a Tafel slope close to -0.06 V/dec in both acid and neutral pH suggested that the mechanism of O2 reduction on FePc is not changed with the change of pH, and the reaction is mainly controlled by FeII/FeIII redox couple. This behaviour gives us new insight into catalysis using FePc, and further supports the use of FePc as a promising catalyst for the oxygen reduction applications in neutral media.
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Published date: May 2009
Keywords:
EIS, Iron phthalocyanine, Microbial fuel cells, Oxygen reduction, Redox couple
Identifiers
Local EPrints ID: 498539
URI: http://eprints.soton.ac.uk/id/eprint/498539
ISSN: 0021-891X
PURE UUID: 8164263f-2218-4dd6-bdc5-d650e5b5b444
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Date deposited: 20 Feb 2025 18:13
Last modified: 21 Feb 2025 03:16
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Contributors
Author:
Eileen Hao Yu
Author:
Shaoan Cheng
Author:
Bruce E. Logan
Author:
Keith Scott
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