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제121회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Ternary Plasmonic Metal-Semiconductor Hierarchical Photocatalysts for Efficient Hydrogen Production

등록일
2018년 2월 13일 16시 11분 50초
접수번호
6116
발표코드
MAT.P-556 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
4월 20일 (금요일) 11:00~12:30
발표형식
포스터
발표분야
Material Chemistry
저자 및
공동저자
Dae Han Wi, Jong Wook Hong1, Sang Woo Han*
Department of Chemistry, Korea Advanced Institute of Science and Technology, Korea
1Chemistry, University of Ulsan, Korea
Solar energy conversion to chemicals through photocatalysis holds great promise for solving the energy and environment problems that are now being faced. Practical application, however is limited in terms of low light harvesting efficiency, fast charge recombination, and low stability of photocatalysts. Herein, we developed efficient solar energy harvesting platform, which is constructed with shaped controlled plasmonic metal and two types of semiconductors with complementary band structures. The plasmonic metal-semiconductor hybrids exhibited excellent hydrogen photocatalytic activity compared to various their counterparts. The hydrogen production enhancement is attributed to synergistic structural and compositional advantages of the plasmonic metal-semiconductor hybrids such as 1) efficient plasmon energy transfer, 2) wide range of light absorption, and 3) retardation of charge carriers by desirable migration based on intimated contact between constituents.

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