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

대한화학회 제121회 학술발표회 및 총회 Selective and Efficient Reduction of CO2 through Ternary Hybrid System (Ir(III)-PS/TiO2/RePH): Immobilization effect of a Ir(III) Photosensitizer on TiO2

등록일
2018년 2월 7일 13시 48분 39초
접수번호
4944
발표코드
INOR.P-151 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
4월 19일 (목요일) 11:00~12:30
발표형식
포스터
발표분야
Inorganic Chemistry
저자 및
공동저자
Hayeon Cheong, Pil Soo Kim, Chul Hoon Kim, Sang Ook Kang, Ho-Jin Son*
Department of Advanced Materials Chemistry, Korea University, Korea
Herein, we report a detailed investigation of efficient hybrid photocatalysts system for carbon dioxide reduction. The system is based on a co-assembly of Ir(III) photosensitizer and molecular Re(I) reduction catalyst on TiO2 semiconductor. The hybrid system consists of ([Ir(X)2(bpyPH)]+ (X = dfppy, ppy, btp; dfppy = 2-(2,4-difluorophenyl)pyridine ; ppy = 2-phenylpyridine; btp = (2-pyridyl)benzo[b]thiophen-3-yl; bpyPH = (4,4′-bis(methylphosphonic acid)-2,2′-bipyridine) as a visible-light photosensitizer and fac-[Re(4,4′-bis(methylphosphonic acid)-2,2′-bipyridine)(CO)3Cl] as a CO2 reduction catalyst (RePH), both of which have been fixed onto TiO2 semiconductors (Hombikat-TiO2). Overall the present Ir(III) complex-based hybrid series showed more durable, efficient catalytic activities compared to our previous binary system, Ir-PS + TiO2/RePH. Among four Ir(III)-based ternary systems, Ir-btp+-based hybrid exhibited the best conversion activity with its relatively higher visible light absorption coverage.

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