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제108회 대한화학회 학술발표회, 총회 및 기기전시회 안내 A Chemical Reactor for Hierarchical Nanomaterials with Tunable Structures: A Metal-triggered Reaction in the Confined Heat Chamber

등록일
2011년 8월 1일 15시 00분 15초
접수번호
1175
발표코드
Ⅱ-MAT.P-281 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
목 <발표Ⅱ>
발표형식
포스터
발표분야
재료화학
저자 및
공동저자
고혜아, 남보라, 이하진, 최원산1
한국기초과학지원연구원, Korea
1한밭대학교 응용화학과, Korea
A novel protocol for the synthesis of core@shell particles with transformable core structures has been introduced, and its use as a chemical reactor for hierarchical nanomaterials with tunable properties has been demonstrated. A metal, metal/polymer, or bimetallic hollow structure was incorporated into the interior of silica capsules via controlled heat treatment of the inorganic-coated polymer particles. A micrometer-sized capsule was used as a reaction chamber to contain and sustain heat, and metal NPs were used as a controller for the transformation of polymer cores. By varying the thermal conductivities of the metal NPs, it was also possible to confer synthesis of hat-like, UFO-like, or bimetallic hollow structures within the capsule. This novel method for core@shell particles is useful for synthesizing nanomaterials with controlled structures and properties. Furthermore, Pt/Au capsule@SiO2 and Au/polymer@SiO2 showed excellent catalytic properties for the transformation of nitrophenol to aminophenol. This approach could be used to tune the structures and properties of various kinds of polymer matrices.

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