콘텐츠 본문
논문 해외 국제전문학술지(SCI급) A Chemical Reactor for Hierarchical Nanomaterials with Tunable Structures: A Metal-triggered Reaction in the Confined Heat Chamber
- 학술지 구분 국제전문학술지(SCI급)
- 게재년월 2011-10
- 저자명 Hyeah Goh, Ha-Jin Lee, Bora Nam, Young Boo Lee, Won San Choi
- 학술지명 Chem. Mater.
- 발행처명 ACS Publications
- 발행국가 해외
- 논문언어 외국어
- 전체저자수 5
- 논문 다운로드 링크(외부) https://doi.org/10.1021/cm202252a
- 연구분야 공학 > 화학공학
논문 초록 (Abstract)
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 hatlike, 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.
