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  • 09월 20일 16시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능

제126회 대한화학회 학술발표회 및 총회 Nanoscale-confined shape transformation of gold nanorods inside ZIF-8

등록일
2020년 9월 9일 17시 01분 45초
접수번호
0919
발표코드
INOR.P-136 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
10월 21일(수) 17:00~17:30
발표형식
포스터
발표분야
Inorganic Chemistry
저자 및
공동저자
Cheongwon Bae, Juyeong Kim*
Department of Chemistry and Research Institute of Natural Sciences, Gyeongsang National University, Jinju 52828, Korea
Hybrid nanostructures, composed of metal nanoparticle cores and porous inorganic shells, have shown new functions and properties. Various combinations between core and shell materials have been attempted for desired applications, which inevitably require much effort and time in material-dependent synthesis development. We demonstrate template-confined chemical transformation of a gold nanorod core encapsulated by a zeolitic imidazolate framework (ZIF) through oxidative etching and reductive regrowth while maintaining the ZIF shell structure. We discover template-dependent behavior of the nanorod core during its morphological transformation inside ZIF, displaying sluggish etching of the nanorod core and its shell-directed overgrowth. Our mechanistic understanding is supported by quantitative analysis on the core geometry and curvature as well as comprehensive control experiments. This will aid in the facile design of core-shell hybrid nanomaterials and advanced understanding in nanoscale-confined reactions.

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