| 학회 |
한국공업화학회 |
| 학술대회 |
2021년 봄 (05/12 ~ 05/14, 부산 벡스코(BEXCO)) |
| 권호 |
25권 1호 |
| 발표분야 |
포스터-환경·에너지 |
| 제목 |
Photochemical CO2 Conversion Catalyzed by Hybrid Ru(II)/TiO2 Catalyst: Highly Efficient CO2-to-CO/Formate Conversion Following A Molecular Catalytic Route |
| 초록 |
Herein, we employed a molecular Ru(II) catalyst immobilized onto TiO2 particulates of (4,4′-Y2-bpy)RuII(CO)2Cl2 (RuP; Y = CH2PO(OH)2), as a hybrid catalyst system to secure the efficient and steady catalytic activity of a molecular bipyridyl Ru(II) complex-based photocatalytic system for CO2 reduction. From a series of operando FTIR spectrochemical analyses, it was found that the TiO2-fixed molecular Ru(II) complex leads to efficient stabilization of the key monomeric intermediate, Ru–hydride (LRuII(H)(CO)2Cl), and suppresses the formation of polymeric Ru(II) complex (–(L(CO)2Ru‒Ru(CO)2L)n–), which is a major deactivation product produced during photoreaction via the Ru–Ru dimeric route. This catalytic strategy produced maximal turnover numbers (TONs) of ＞4816 and ＞2228 for CO and HCOO‒ production respectively upon addition of 16.7 vol % TEOA for 22 h. |
| 저자 |
최민수, 이대한, 서윤정, 최성한, 강상욱, 손호진
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| 소속 |
고려대 |
| 키워드 |
photocatalysis; CO2 reduction
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| E-Mail |
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