Cobalt encapsulated in the nitrogen and sulfur co-doped carbon nanotube supported platinum for the oxygen reduction reaction catalyst
- Title
- Cobalt encapsulated in the nitrogen and sulfur co-doped carbon nanotube supported platinum for the oxygen reduction reaction catalyst
- Author
- 이성철
- Keywords
- MEMBRANE FUEL-CELLS; CATHODE CATALYST; HIGHLY EFFICIENT; ELECTROCATALYTIC ACTIVITY; COMPOSITE CATALYST; GRAPHENE; NANOPARTICLES; PERFORMANCE; DURABILITY; ROUTE
- Issue Date
- 2018-07
- Publisher
- PERGAMON-ELSEVIER SCIENCE LTD
- Citation
- CARBON, v. 139, page. 656-665
- Abstract
- In this paper, cobalt encapsulated in nitrogen and sulfur co-doped carbon nanotube (Co-NST) was synthesized through a simple pyrolysis method to impregnate platinum (Pt) nanoparticles. The Co-NST presented a bamboo-like morphology with the high degree of graphitization. Owing to the dual heteroatoms co-doped in the carbon matrix, the Pt supported on the Co-NST (Pt/Co-NST) showed the well-dispersed morphology of the Pt nanoparticles. In addition, the synergistic effect between the Co-NST support and the Pt nanoparticle was observed from the physicochemical characterizations. As a result, the Pt/Co-NST presented improved oxygen reduction reaction (ORR) activity and stability compared to the commercial Pt/C. The mass activity and specific activity of the Pt/Co-NST presented 508.48 mA mg(pt)(-1) and 723.93 mu A cm(pt)(-2), respectively, which exhibited more than 3 times higher compared to those of the commercial Pt/C. After repeating 5000 potential cycles, the Pt/Co-NST showed improved stability with 29 mV loss in half-wave potential, while the half-wave potential of the commercial Pt/C was severely decreased by 118 mV. (C) 2018 Elsevier Ltd. All rights reserved.
- URI
- https://www.sciencedirect.com/science/article/pii/S0008622318306730?via%3Dihubhttps://repository.hanyang.ac.kr/handle/20.500.11754/119343
- ISSN
- 0008-6223; 1873-3891
- DOI
- 10.1016/j.carbon.2018.07.031
- Appears in Collections:
- COLLEGE OF ENGINEERING[S](공과대학) > CHEMICAL ENGINEERING(화학공학과) > Articles
- Files in This Item:
There are no files associated with this item.
- Export
- RIS (EndNote)
- XLS (Excel)
- XML