| 학회 |
한국공업화학회 |
| 학술대회 |
2015년 봄 (04/29 ~ 05/01, BEXCO (부산)) |
| 권호 |
19권 1호 |
| 발표분야 |
촉매_포스터 |
| 제목 |
A highly reusable and efficient Co based sodalite zeolitic imidazolate framework for the chemical fixation of CO2. |
| 초록 |
Zeolitic imidazolate frameworks (ZIF) are a subclass of Metal Organic Frameworks (MOF) which shares many riches of the zeolite chemistry. In this work, a Co based zeolitic imidazolate framework bearing sodalite topology (ZIF-67) is utilized for the chemical fixation of CO2 via cycloaddition with oxiranes yielding five membered cyclic carbonates. High quality ZIF-67 crystals were synthesized spontaneously at room temperature within few minutes using water as the solvent. Also, on comparative purposes, microwave irradiation were used for ZIF-67 synthesis and the catalytic activity of all the synthesized ZIF-67 crystals for CO2-oxirane cycloaddition was carried out under moderate reaction conditions. The ZIF-67 showed appreciable catalytic conversions of various epoxides even at temperatures less than 120 ℃, in 6 h, with excellent selectivity of more than 98%. Moreover, the catalyst showed no significant leaching of the active Co metal ions upon reuse and was reusable for more than 5 times. ZIF-67 thus proved to be a robust and environmentally benign, reusable and easily synthesizable catalyst for an effective chemical fixation of CO2. |
| 저자 |
Roshan Roshith, 빈경미, 김한웅, 박대원
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| 소속 |
부산대 |
| 키워드 |
Metal Organic Frameworks; ZIF-67; Carbon dioxide; Oxiranes
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| E-Mail |
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