| 학회 |
한국공업화학회 |
| 학술대회 |
2017년 봄 (05/10 ~ 05/12, 광주 김대중컨벤센센터(Kimdaejung Convention Center)) |
| 권호 |
21권 1호 |
| 발표분야 |
촉매 |
| 제목 |
Recognition of organic-inorganic hybrid cobalt nanoparticles as non-precious metal catalysts for oxygen reduction |
| 초록 |
Efficient oxygen reduction reaction (ORR) through effective and inexpensive electrocatalysts is a valuable approach for clean and renewable energy systems. Here, carbon-encapsulated cobalt nanoparticles supported on carbon (Co@C/C) are introduced as non-noble-metal catalyst for ORR. Enhancing ORR activity and improving C-shell sealing are two major challenges in synthesis of Co@C/C catalyst. The Co@C/C are synthesized by thermal decomposition of cobalt precursor in a one-step synthesis. The morphological properties have been observed by transmission electron microscopy. In Co@C/C, few-shell carbon-cage protects the metal nanoparticle from atmospheric-O2-induced degradation and agglomeration of neighboring nanoparticles. Moreover, the nature of the interfacial contact/interactions b/w the metal cores and the carbon shells plays a key role towards optimizing ORR activity. This finding opens new avenues for utilizing active transition metals such as cobalt in a wide range of applications. |
| 저자 |
Monika Sharma, 장정희, 성후광, 정남기
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| 소속 |
충남대 |
| 키워드 |
oxygen reduction reaction; nanoparticle; catalyst
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| E-Mail |
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