The role of arginine as nitrogen doping and carbon source for enhanced oxygen reduction reaction
- Authors
- Kim, Do-Hyoung; Kwak, Da-Hee; Han, Sang-Beom; Park, Hyun-Suk; Park, Jin-Young; Won, Ji-Eun; Ma, Kyeng-Bae; Yun, Seok-Hyeon; Kwon, Suk-Hui; Koh, Moon Hyun; Park, Kyung-Won
- Issue Date
- Jan-2018
- Publisher
- PERGAMON-ELSEVIER SCIENCE LTD
- Keywords
- Doped carbon nanostructure; Arginine; Non-precious metal catalyst; Oxygen reduction reaction
- Citation
- INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, v.43, no.3, pp.1479 - 1488
- Journal Title
- INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
- Volume
- 43
- Number
- 3
- Start Page
- 1479
- End Page
- 1488
- URI
- http://scholarworks.bwise.kr/ssu/handle/2018.sw.ssu/32111
- DOI
- 10.1016/j.ijhydene.2017.11.173
- ISSN
- 0360-3199
- Abstract
- Doped carbon nanostructures as non-precious metal (NPM) catalysts for oxygen reduction reaction (ORR) in acid medium are mainly synthesized using 5, 10, 15, 20-tetrakis (4methoxyphenyl)-porphyrin-Fe (III) chloride (Fe-TMPP) as doping and carbon sources. In this study, the doped carbon nanostructures used as cathode NPM catalysts for ORR are prepared using a mixture of iron phthalocyanine (FePc) and arginine as doping and carbon sources. The morphology and composition of the as-prepared samples are characterized using field-emission scanning electron microscopy, field-emission transmission electron microscopy, and energy dispersive X-ray (EDX) spectroscopy. The crystal and pore structures are analyzed using X-ray diffraction method, Raman spectroscopy, and nitrogen adsorption/desorption method. The sample prepared using a precursor mixture with a proper ratio of FePc and arginine exhibits significantly superior ORR performance, i.e. high specific activity, enhanced half-wave potential, and improved stability in an acid medium, as even compared to a commercial Pt/C. The improved ORR properties is mainly attributed to high portion of pyridinic N state with a relatively high specific surface area, which can result from the FePc precursor surrounded by the fused arginine. (C) 2017 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
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Collections - College of Engineering > Department of Chemical Engineering > 1. Journal Articles
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