Synergistically Enhanced Electrocatalytic Stability of Pt Catalyst Supported by Doped Porous Carbon Nanostructure for Oxygen Reduction Reaction
- Authors
- Kwon, Suk-Hui; Lee, Seul-Gi; Han, Sang-Beom; Park, Kyung-Won
- Issue Date
- Sep-2021
- Publisher
- SPRINGER
- Keywords
- Doped porous carbon; Pt; Supported catalyst; Oxygen reduction reaction
- Citation
- ELECTROCATALYSIS, v.11, no.5, pp.497 - 504
- Journal Title
- ELECTROCATALYSIS
- Volume
- 11
- Number
- 5
- Start Page
- 497
- End Page
- 504
- URI
- http://scholarworks.bwise.kr/ssu/handle/2018.sw.ssu/38423
- DOI
- 10.1007/s12678-020-00609-8
- ISSN
- 1868-2529
- Abstract
- In proton exchange membrane fuel cells, the utilization of supporting materials for Pt-based catalysts is an effective approach to improve the oxygen reduction reaction (ORR) performance. In this study, a doped porous carbon (DPC) as a support was prepared with polyaniline as the main carbon source, iron nitrate nonahydrate as a metal doping source, and dicyandiamide as a nitrogen doping source in the presence of 20 nm silica bead as a template. The carbon support showed fairly high specific surface area (similar to 740 m(2) g(-1)), well-defined pore structure, and a proper nitrogen doping (similar to 4.9 at.%). The Pt cathode catalyst deposited on the doped porous carbon using an NaBH4 reduction method (Pt/DPC) exhibited significantly improved ORR performance in the half and single cells, compared with the conventional carbon-supported Pt catalyst. The superior ORR stability of Pt/DPC may be as a result of the particular interaction between Pt catalyst and DPC support as a doped carbon. Graphical
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Collections - College of Engineering > Department of Chemical Engineering > 1. Journal Articles
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