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학술발표회초록보기

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  • 09월 12일 17시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능

제110회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Synthesis of Spherical Meso-macroporous Silica Particles from Emulsion Droplets

등록일
2012년 9월 5일 09시 51분 53초
접수번호
1670
발표코드
MAT.P-1378 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
10월 17일 (수요일) 16:00~19:00
발표형식
포스터
발표분야
재료화학
저자 및
공동저자
조영상, 이기라1, 임동찬2
한국기계연구원 부설 재료연구소 기능재료연구본부, Korea
1성균관대학교 고분자시스템공학과, Korea
2재료연구소 표면기술연구본부, Korea
We report the bulk synthesis of spherical meso-macroporous ceramic particles by emulsion templating process with hierarchical pore structures. Polystyrene (PS) beads were employed as templates for macroppores and structure directing agents such as triblock copolymer were used for mesopores, and assembled simultaneously inside emulsion with tetraalkoxysilane as silica source, which formed composite structured particles during the evaporation of droplets. Then, by burning out PS beads and the structure directing agents, spherical meso-macroporous silica particles were produced as powder form. The size of macropores could be controlled by changing the diameter of PS beads. The formation of the hierarchically porous particles led to the drastic increase of the specific surface area as 360 % compared to that of simple macroporous particles, implying that our meso-macroporous particles are potentially applicable to various fields which requires extremely porous materials such as catalytic supports, adsorbents, or drug carriers. Acknowledgment: This subject is supported by Korea Ministry of Environment as “The Eco-Innovation Project”, the grant from ‘Creative Research Program (PNK3060) in Korea Institute of Materials Science (KIMS), and Korea CCS 2020 Project.

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