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  • 02월 19일 10시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능

대한화학회 제121회 학술발표회 및 총회 Colloidal ZnO-Cu2O hybrid nanocatalysts for selective photocatalytic CO2 conversion into methane by water

등록일
2018년 2월 6일 19시 35분 09초
접수번호
4418
발표코드
INOR.P-97 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
4월 19일 (목요일) 11:00~12:30
발표형식
포스터
발표분야
Inorganic Chemistry
저자 및
공동저자
Jinmo Kim, Hyunjoon Song*
Department of Chemistry, Korea Advanced Institute of Science and Technology, Korea
Developing catalytic systems with high activity and selectivity is a fundamental issue for photochemical CO2 conversion. Herein we synthesize ZnO-Cu2O hybrid nanoparticles as colloidal forms with well-defined morphology. The ZnO-Cu2O nanoparticles behave as highly active photocatalysts for direct CO2 conversion in an aqueous medium, with the selectivity of CH4 production approaching > 99%, the high activity (1080 μmol/gcath) and a quantum yield (1.5%). These high performances of the ZnO-Cu2O hybrid catalysts are attributed to an excellent band alignment of the ZnO and Cu2O domains and their defect-less junctions, which allow to suppress defect-induced charge recombination and enhance effective electron transfer between the domains.
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