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Investigation of Oxygen Reduction Activity of Catalysts Derived from Co and Co/Zn Methyl‐Imidazolate Frameworks in Proton Exchange Membrane Fuel Cells
Author(s) -
Chong Lina,
Goenaga Gabriel A.,
Williams Kia,
Barkholtz Heather M.,
Grabstanowicz Lauren R.,
Brooksbank Jeremy A.,
Papandrew Alex B.,
Elzein Radwan,
Schlaf Rudiger,
Zawodzinski Thomas A.,
Zou Jianxin,
Ma Shengqian,
Liu DiJia
Publication year - 2016
Publication title -
chemelectrochem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.182
H-Index - 59
ISSN - 2196-0216
DOI - 10.1002/celc.201600163
Subject(s) - zeolitic imidazolate framework , catalysis , bimetallic strip , cobalt , proton exchange membrane fuel cell , chemistry , cathode , imidazolate , membrane , inorganic chemistry , oxygen , imidazole , chemical engineering , materials science , metal organic framework , organic chemistry , adsorption , biochemistry , engineering
We demonstrated that the oxygen reduction reaction (ORR) activity over catalysts derived from pyrolyzed cobalt zeolitic imidazolate frameworks (ZIFs) depends strongly on the imidazole ligand structure and cobalt content. The activity and durability of these catalysts were tested in the proton exchange membrane fuel cell for the first time. The membrane electrode assembly containing a catalyst derived from Co/Zn bimetallic ZIF at the cathode achieved an open‐circuit voltage of 0.93 V, a current density of 28 mA cm −2 at 0.8 V iR ‐free , and a peak power density of 374 mW cm −2 .