In this paper iron complex with 5,10,15,20-tetraphenyl porphyrin inside NaX zeolite nanocages was capsuled. All synthesized homogeneous and heterogeneous catalysts were applied for epoxidation of α-pinene. It has bee...In this paper iron complex with 5,10,15,20-tetraphenyl porphyrin inside NaX zeolite nanocages was capsuled. All synthesized homogeneous and heterogeneous catalysts were applied for epoxidation of α-pinene. It has been shown that hydrophobic porphyrins are anchored inside the zeolite pores according to flexible ligand method. It also has been examined that capsulation of metalloporphyrins inside the pores of solid supports change catalytic activity and stability. All catalysts were characterized by Fourier transform infrared （FTIR）, UV/Vis diffuse reflectance spectroscopic （DRS）, scanning electron microscopy （SEM） analyses to confirm the complexes immobilization.展开更多
Chemical conversion of carbon dioxide(CO2)to value-added useful chemicals like cyclic carbonates represents one potential solution to climate warming.Here,a kind of porous organic polymer(HAT-TP)with large surface are...Chemical conversion of carbon dioxide(CO2)to value-added useful chemicals like cyclic carbonates represents one potential solution to climate warming.Here,a kind of porous organic polymer(HAT-TP)with large surface area and excellent carbon dioxide uptake capacity is prepared via a condensation reaction to introduce hexaazatriphenylene(HAT)units into triptycene(TP)-based microporous polymer.HAT-TP can coordinate with zinc ions,and the resulting polymer(Zn/HAT-TP)can be utilized as an efficient recyclable catalyst for chemical conversion of CO2 into cyclic carbonates with epoxides.展开更多
文摘In this paper iron complex with 5,10,15,20-tetraphenyl porphyrin inside NaX zeolite nanocages was capsuled. All synthesized homogeneous and heterogeneous catalysts were applied for epoxidation of α-pinene. It has been shown that hydrophobic porphyrins are anchored inside the zeolite pores according to flexible ligand method. It also has been examined that capsulation of metalloporphyrins inside the pores of solid supports change catalytic activity and stability. All catalysts were characterized by Fourier transform infrared （FTIR）, UV/Vis diffuse reflectance spectroscopic （DRS）, scanning electron microscopy （SEM） analyses to confirm the complexes immobilization.
基金supported by the National Natural Science Foundation of China (21875079 and 21672078)
文摘Chemical conversion of carbon dioxide(CO2)to value-added useful chemicals like cyclic carbonates represents one potential solution to climate warming.Here,a kind of porous organic polymer(HAT-TP)with large surface area and excellent carbon dioxide uptake capacity is prepared via a condensation reaction to introduce hexaazatriphenylene(HAT)units into triptycene(TP)-based microporous polymer.HAT-TP can coordinate with zinc ions,and the resulting polymer(Zn/HAT-TP)can be utilized as an efficient recyclable catalyst for chemical conversion of CO2 into cyclic carbonates with epoxides.
