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Electrochemical reduction of oxygen with iron phthalocyanine in neutral media

Lookup NU author(s): Professor Eileen Yu, Professor Bruce Logan, Emeritus Professor Keith Scott


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Recent interest in electricity production using microbial fuel cells makes it important to better understand O-2 reduction in neutral solutions with non-precious metal catalysts. Higher O-2 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 O-2 reduction on FePc is not changed with the change of pH, and the reaction is mainly controlled by Fe-II/Fe-III 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.

Publication metadata

Author(s): Yu EH, Cheng S, Logan BE, Scott K

Publication type: Article

Publication status: Published

Journal: Journal of Applied Electrochemistry

Year: 2009

Volume: 39

Issue: 5

Pages: 705-711

ISSN (print): 0021-891X

ISSN (electronic): 1572-8838

Publisher: Springer Netherlands


DOI: 10.1007/s10800-008-9712-2


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Funder referenceFunder name
CBET-0730359National Science Foundation
EP/C535456/1EPSRC research fellowship
BES-0401885National Science Foundation
MTKD-CT-2004-517215European Union