| 학회 |
한국공업화학회 |
| 학술대회 |
2015년 봄 (04/29 ~ 05/01, BEXCO (부산)) |
| 권호 |
19권 1호 |
| 발표분야 |
촉매_포스터 |
| 제목 |
A zeolitic imidazolate framework with LTA topology as an efficient catalyst for cyclic carbonate synthesis. |
| 초록 |
Zeolitic imidazolate frameworks (ZIF) are nowadays acclaimed porous framework materials for CO2 adsorption. In here, a highly porous zeolitic imidazolate framework (ZIF-22) with LTA topology was synthesized by solvothermal and microwave methods using Zn(NO3)2.4H2O and 5-azabenzimidazolate linker. The synthesized ZIF-22 was characterized using XRD and SEM techniques and were examined for its catalytic abilities for the cycloaddition of CO2 to propylene oxide (PO) yielding propylene carbonate under solvent free and co-catalyst free moderate reaction conditions. The LTA structured ZIF-22 possess two bigger cages, alpha and beta which allowed the diffusion of reactant molecules easier. The mechanism of catalysis is thought to involve the Lewis acidic metal centers (Zn) and the N atom in the 5th position of the 5-azabenzimidazole linker acting synergistically. The influence of reaction parameters have also been studied along with reusability studies. Through this study, we aimed at exploring the possibility of tuning ZIF materials as a bridge between CO2 adsorption and transformation into value added products. |
| 저자 |
황규영, 정혜민, 박대원
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| 소속 |
부산대 |
| 키워드 |
Zeolitic Imidazolate Frameworks; LTA topology; ZIF-22; Propylene oxide
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| E-Mail |
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