abs

학술발표회초록보기

초록문의 abstract@kcsnet.or.kr

결제문의 member@kcsnet.or.kr

현재 가능한 작업은 아래와 같습니다.
  • 09월 08일 17시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능

제116회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Photoreduction of CO2 to methanol by using CuInS2 cathode mixed with reduced graphene oxide

등록일
2015년 9월 3일 14시 48분 32초
접수번호
1247
발표코드
PHYS.P-278 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
10월 16일 (금요일) 13:00~14:30
발표형식
포스터
발표분야
물리화학
저자 및
공동저자
심수정, 강영수1,*
서강대학교 화학, Korea
1서강대학교 화학과, Korea
Copper indium disulfide (CuInS2, CIS) is suitable for cathode cause it is a p-type semiconductor as visible light driven catalyst (band gap ~1.5 eV) and it has a high absorption coefficients ( >105 cm-1) and appropriate band position for CO2 reduction to methanol. In general CIS electrode can be fabricated by electrochemical deposition followed by sulfurization but in our case CIS thin film was fabricated by simple annealing process using precursors dissolved in pyridine. Instead of water based solvent system, pyridine has a strong coordinating with solvent which can help the decomposition of the precursors catalytically. And also we incorporate reduced graphene oxide (r-GO) with CIS film. r-GO will be helpful to enhance photocurrent and also by varying the reduction level of graphene oxide we can control the reduction potential level for effective methanol production( ~0.38 eV). r-GO-CIS film can be made simply by just mixing graphene oxide with precursors. This r-GO-CIS film can be applied well as cathode for methanol production which is our final purpose in artificial photosynthesis

상단으로