초록 ▼

고효율/장수명 이산화탄소 전환용 유·무기혼성 촉매시스템을 개발 (집광소재/N-형 반도체/분자성 광촉매):
-전색체 유기염료개발: push-pull 유기염료, 스쿠아린, 포르피린, thiophene계열 고분자
-N-형 반도체개발: H-TiO₂, D-TiO₂, [001]-TiO₂, s-TiO₂
-고선택성 이산화탄소 전환 광촉매개발: Re(I), Mn(I)계 유기금속착물
[세부연구결과요약]
-유·무기혼성소재의 결합: 반도체 밴드밴딩을

고효율/장수명 이산화탄소 전환용 유·무기혼성 촉매시스템을 개발 (집광소재/N-형 반도체/분자성 광촉매):
-전색체 유기염료개발: push-pull 유기염료, 스쿠아린, 포르피린, thiophene계열 고분자
-N-형 반도체개발: H-TiO₂, D-TiO₂, [001]-TiO₂, s-TiO₂
-고선택성 이산화탄소 전환 광촉매개발: Re(I), Mn(I)계 유기금속착물
[세부연구결과요약]
-유·무기혼성소재의 결합: 반도체 밴드밴딩을 유도할 첨가제개발
-ALD 후-공정에 따른 고 신뢰성 효율 확보
-촉매작동기작 규명을 통한 양산공정 가능성 확립
가. 집광소재/반도체 계면특성 확립: 광유발 전자이동조건 규명 및 이를 통한 효율극대화
나. 3성분계 광촉매시스템의 고신뢰성 확보 및 최적화조건 확립
다. 광전변환기작의 CO₂전환효율 최적화 (TON = >1000)
-유·무기혼성광촉매 시스템의 에너지, 전자이동현상 이해
가. 분자물질과 혼성물질에서의 에너지이동현상 이해
나. 유기물질/반도체 계면에서의 광전기화학적 기초연구
다. 혼성시스템의 다 전자 이산화탄소 환원기작 규명

(출처 : 보고서 요약서 3p)

Abstract ▼

Organic-inorganic ternary hybrid photocatalyst for CO₂ conversio is to be developed. Energy for the
CO₂ conversion is supplied by sun and electrons and protons are to be supplied by water splitting. To
date so far the best turnover number(TON) for the conversion efficienc

Organic-inorganic ternary hybrid photocatalyst for CO₂ conversio is to be developed. Energy for the
CO₂ conversion is supplied by sun and electrons and protons are to be supplied by water splitting. To
date so far the best turnover number(TON) for the conversion efficiency from CO₂ to CO recorded
from the well-characterized and –understood photocatalyst is 500. We aim to explore new types of
inorganic-organic hybrid photocatalysts that will surpass the best conversion efficiency. To secure the
conversion efficiency, electrochemical and photophysical studies are to be aimed for the clarification of
the photoelectrochemical conversion mechanism.

● Organic-inorganic hybrid photocatalyst is to be developed. This system involves a photosensitize,
n-type semiconductor and molecular catalyst; with implement of this system highly efficient and
persistent CO₂ conversion is sought after. To achieve this goal followings are targeted;
1. Panchromatic dye: push-pull organic dye, saquarine, porphyrin, polythiophene
2. n-type semiconductor: H-TiO₂, D-TiO₂, [001]-TiO₂, s-TiO₂
3. Molecular CO₂ conversion catalyst: Inorganic/organometallic Re(I), Mn(I) complexes
4. Organic-inorganic hybrid photocatalyst: Band bending for electron flow control
5. Highly stable photocatalyst development by Atomic Layer Deposition (ALD)

● Scale-Up test from the mechanism study
1. Photosensitize/semiconductor ‘Shottky Barrier’and Photoinduced electron transfer
2. Performance optimization of ternary photocatalyst
3. Development of higly durable and efficient CO₂ conversion from photon

● Understanding on energy/electron transfer of organic-inorganic hybrid catalyst
1. Electron transfer difference between molecular and organic-inorganic hybrid system
2. Conduction study on the interference surface of organic-inorganic hybrid
3. Muti-electron CO₂ reduction on organic-inorganic hybrid

Development results:
● Pre-development of dye-sensitized CO₂ conversion photocatalyst
● Securing the CO₂ photoconversion efficiency of TON >500
● Retro-Fischer-Tropsch synthetic gas production by CO₂ photocatalysis in water

Expected contribution:
● Economical solar energy storage from photocatalytic CO₂ conversion
● ‘Carbon Neutrality’ can be obtained through efficient CO₂ conversion
● Industrial waste, CO₂, is to be recycled.
● Future technology to meet the requirement for the global warming
● Most critical technology for carbon tax and footage for global trade market
● Avoid environmentally hazardous carbon fuels, coal and petroleum oil
● Energy independence from global energy market

(출처 : SUMMARY 5p)

목차 Contents

• 표지 ... 1
• 제 출 문 ... 2
• 보고서 요약서 ... 3
• 요 약 문 ... 4
• SUMMARY ... 5
• CONTENTS ... 6
• 목차 ... 7
• 1. 연구과제개발의 개요 ... 8
• 2. 국내외 기술개발 현황 ... 14
• 3. 연구수행내용 및 성과 ... 17
• 3-1. 1차년도 성과 ... 17
• 3-2. 2차년도 성과 ... 22
• 3-3. 3차년도 성과 ... 28
• 4. 목표 달성도 및 관련 분야 기여도 ... 84
• 5. 연구개발성과의 활용계획 등 ... 85
• 6. 연구개발과정에서 수집한 해외과학기술정보 ... 86
• 7. 참고문헌 ... 88
• 별첨1. 연구재단 단계평가(2020.02.1)의견 반영 조치사항 ... 91
• 끝페이지 ... 97