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논문 기본 정보
- 자료유형
- 학술대회자료
- 저자정보
- 발행연도
- 2012.3
- 수록면
- 406 - 409 (4page)
이용수
초록· 키워드
Recently, enormous research efforts have been focused on the development of non-precious catalysts to replace Pt for electrocatalytic oxygen reduction reaction (ORR), and to reduce the cost of proton exchange membrane fuel cells (PEMFCs). In recent years, heteroatom (N, B, and P) doped carbon nanostructures have been received enormous importance as a non-precious electrode materials for oxygen reduction. Doping of foreign atom into carbon is able to modify electronic properties of carbon materials. In this study, nitrogen and boron doped carbon nanostructures were synthesized by using a facile and cost-effective thermal annealing route and prepared nanostructures were used as a non-precious for the ORR in alkaline electrolyte. The nitrogen doped carbon nanocapsules (NCNCs) exhibited higher activity than that of a commercial Pt/C catalyst, excellent stability and resistance to methanol oxidation. The boron-doped carbon nanostructure (BC) prepared at 900 ℃ showed higher ORR activity than BCs prepared lower temperature (800, 700 ℃). The heteroatom doped carbon nanomaterials could be promising candidates as a metal-free catalysts for ORR in the PEMFCs.
#Heteroatom-doped carbon
#boron-doped
#nitrogen-doped
#non-precious catalyst
#cathode
#fuel cell
#proton exchange membrane fuel cell (PEMFC)
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목차
- Abstract
- 1. Introduction
- 2. Experimental
- 3. Results and discussion
- 4. Conclusion
- Acknowledgements
- References
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