Vengatesan, Singaram Cho, Eunae Oh, In-Hwan 2024-01-20T15:01:20Z 2024-01-20T15:01:20Z 2021-09-05 2012-05 0256-1115 https://pubs.kist.re.kr/handle/201004/129298 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 H-2/O-2 fuel cells. English KOREAN INSTITUTE CHEMICAL ENGINEERS FE-BASED CATALYSTS CARBON-BLACK IRON ELECTROCATALYSTS PYROLYSIS STABILITY PEMFCS Development of non-precious oxygen reduction reaction catalyst for polymer electrolyte membrane fuel cells based on substituted cobalt porphyrins Article 10.1007/s11814-011-0225-z 1 KOREAN JOURNAL OF CHEMICAL ENGINEERING, v.29, no.5, pp.621 - 626 KOREAN JOURNAL OF CHEMICAL ENGINEERING 29 5 621 626 scie scopus kci ART001655049 000303491600011 2-s2.0-84860571904 Chemistry, Multidisciplinary Engineering, Chemical Chemistry Engineering Article FE-BASED CATALYSTS CARBON-BLACK IRON ELECTROCATALYSTS PYROLYSIS STABILITY PEMFCS Non-precious Metal Catalyst Metal-porphyrin ORR Activity Rotating Disc Electrode Polymer Electrolyte Membrane Fuel Cells