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  • 03월 04일 13시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능

Crystal Overgrowth on Gold Nanorods

등록일
2005년 3월 2일 14시 03분 49초
접수번호
1100
발표코드
토20J3구 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
토 10시 : 00분
발표형식
구두발표
발표분야
무기화학
저자 및
공동저자
송재희
순천대학교 화학과,
Electrochemically prepared Au nanorods were used as seeds for the overgrowth of thin shells of gold, silver, and palladium by using a mild reducing agent in the presence of surfactants at ambient condition. The unique crystal facets of the starting nanorods results in anisotropic crystal overgrowth. The overgrowth rates along different crystallographical directions can be further regulated by adding foreign ions or by using different metal reduction methods. This overgrowth study provides insights on how different metal ions could be reduced preferentially on different Au nanorod surfaces, so that the composition, aspect ratio, shape, and facet of the resulting nanostructures can be rationally tuned. These surfactant-stabilized bimetallic AucoreMshell (M=Au, Ag, Pd) nanorod colloids might serve as better substrates in surface-enhanced Raman spectroscopy as well as exhibiting enhanced catalytic properties.

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