Development of non-precious oxygen reduction reaction catalyst for polymer electrolyte membrane fuel cells based on substituted cobalt porphyrins

Title
Development of non-precious oxygen reduction reaction catalyst for polymer electrolyte membrane fuel cells based on substituted cobalt porphyrins
Authors
뱅가트조은애오인환
Keywords
PEMFC; catalyst; Non-precious Metal Catalyst; Metal-porphyrin; ORR Activity; Rotating Disc Electrode; Polymer Electrolyte Membrane Fuel Cells
Issue Date
2012-05
Publisher
The Korean journal of chemical engineering
Citation
VOL 29, NO 5, 621-626
Abstract
Active and stable cobalt-based non-precious metal catalysts for the oxygen reduction reaction (ORR) in PEM fuel cells were developed through high-temperature pyrolysis of metal-porphyrins supported on carbon. The roles of substituted porphyrins, carbon support, and catalyst loading on ORR activity were studied using rotating disc electrode (RDE) measurements. It was observed that the carbon support plays a major role in improving the catalytic activity. The results showed that among the supported catalysts, the homemade mesocarbon-supported cobalt-porphyrin catalyst with 20 wt% loading displayed higher ORR activity; the cell performance showed maximum current density of 1.1 A cm−2 at 0.13 V in H2/O2 fuel cells.
URI
http://pubs.kist.re.kr/handle/201004/42588
ISSN
02561115
Appears in Collections:
KIST Publication > Article
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