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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 한양대학교 세라믹공정연구센터 Journal of Ceramic Processing Research Journal of Ceramic Processing Research 제19권 제6호
- 발행연도
- 2018.12
- 수록면
- 499 - 503 (5page)
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In this paper, cobalt embedded in nitrogen and sulfur co-doped carbon nanotubes (CoNSTs) were synthesized for oxygenreduction reaction (ORR) catalysts. The CoNSTs were prepared through a facile heat treatment method without any templates.
Different amounts of the metal salt were employed to examine the physicochemical and electrochemical properties of theCoNSTs. The CoNSTs showed the bamboo-like tube morphology with the encased Co nanoparticles in the tubes. Through thex-ray photoelectron spectroscopy analysis, the catalysts exhibited different chemical states of the nitrogen and sulfur species.
As a result, the CoNST performed high activity toward the ORR in an acidic condition with the onset potential of 0.863 V (vs.
reversible hydrogen electrode). It was clearly demonstrated from the electrochemical characterizations that the quality of thenitrogen and sulfur species significantly influences the ORR activity rather than the total amount of the dopants.
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