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제114회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Unusual Rh nanocrystal growth control by space-confined heteroepitaxial growth on twinning boundary

등록일
2014년 8월 28일 15시 28분 13초
접수번호
1094
발표코드
MAT.P-1117 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
10월 15일 (수요일) 16:00~19:00
발표형식
포스터
발표분야
재료화학
저자 및
공동저자
안효현, 이광렬*
고려대학교 화학과, Korea
While nanocrystal growth is influenced by various reaction parameters, the atom packing motif of a pre-existing substrate, where a new phase can grow, is one of the strongest structure determining factor. Various nanocrystalline substrates have been employed for a heteroepitaxial growth, but little is known for the heteroepitaxial growth pattern on laterally crowded twinning boundaries. In this case, the surfactant-surfactant interaction between newly growing neighboring nanocrystallites would also play an important role in addition to the structure determining effect of the crystal packing motif of the nanosubstrate. We have recently reported the synthesis of coaxial Au@Pt nanowires with numerous adjacently placed twinning boundaries, and therefore the nanowires seem to provide the ideal opportunity for studying above mentioned issue. Herein, we report the successful dimension controlled vertical growth of Rh nanorods and nanoplates on a Au@Pt nanowire, which are not obtained in the absence of the Au@Pt nanowire substrate.

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