| 학회 |
한국공업화학회 |
| 학술대회 |
2013년 봄 (05/01 ~ 05/03, ICC JEJU) |
| 권호 |
17권 1호 |
| 발표분야 |
포스터-에너지저장변환 |
| 제목 |
Preparation and characterization of silicon oxycarbide derived carbon |
| 초록 |
Two polysilsesquioxanes, with an empirical formula (RSiO1.5)n R = CH3 (PMS) and CH3–C6H5 (PMPS) were pyrolyzed at 1200 oC for 2 h to form SiOC ceramics of variable composition. Etching of polymer-derived SiOC ceramics with chlorine gas at 1200 oC produced micro-/mesoporous carbon with a high specific surface area (SSA) reaching up to 2700 m2/g, hierarchical pore structure and showing very large pore volumes (up to 1.72 cc/g) without activation. Both, the SiOC precursors and the porous silicon oxycarbide derived carbons (SiOC-CDCs) were characterized. Dissimilarities in the chemical composition and free carbon content of the formed ceramics yielded different microstructures at the nanoscale. This feature affected the final SSA and pore size distribution of the SiOC-CDC materials. |
| 저자 |
연순화1, Cekdar Vakifahmetoglu2, Volker Presser2, Paolo Colombo2, Yury Gogotsi2
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| 소속 |
1한국에너지기술(연), 2Drexel Univ. |
| 키워드 |
carbide-derived carbon; gas storage; polymer derived ceramics
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| E-Mail |
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