中北大学学报（自然科学版）2024，Vol.45Issue(2)：229-238,10.DOI:10.3969/j.issn.1673-3193.2024.02.013
ZrxCe1-xO2/NC催化CO2和苯乙烯-锅法制环碳酸酯
One-Pot Synthesis of Cyclo-Carbonate from Styrene and CO2 over the ZrxCe1-xO2/NC Catalyst
摘要
Abstract
The conversion of CO2 and olefin to cyclo-carbonate is one of effective carbon-immobilizing strategies.The zirconium-cerium bimetallic catalysts supported on the nitrogen-doped porous carbon(ZrxCe1-xO2/NC)were designed and prepared.Their morphology,crystal,pore structure and acid-base characters of the catalysts were monitored by X-Ray Diffraction(XRD),scanning electron microscope(SEM),N2 adsorption-desorption isotherm(N2-adsorption),CO2-temperature program desorption(CO2-TPD)and NH3-temperature program desorption(NH3-TPD).The results show that the catalyst can catalyse the one-pot synthesis of cyclo-carbonate by CO2 and styrene with halogen-free conditions.The Zr0.75Ce0.25O2/NC show the best conversion of 74.87%and selectivity of 80.43%under 2 MPa CO2 through a bi-period of 80℃/8 h and 150℃/8 h.This is attributed to the uniform dispersion of CeO2 and ZrO2 on the carbon support,as well as the synergistic effect of acid-base sites.关键词
CO2/苯乙烯/CeO2/ZrO2/多孔碳/环碳酸酯Key words
CO2/styrene/CeO2/ZrO2/porous carbon/cyclo-carbonate分类
化学化工引用本文复制引用
周钰淼,梁栋,姚悦华,武越,赵婷,朱娜..ZrxCe1-xO2/NC催化CO2和苯乙烯-锅法制环碳酸酯[J].中北大学学报（自然科学版）,2024,45(2):229-238,10.基金项目
国家自然科学基金资助项目(22176117) （22176117）
山西省自然科学基金资助项目(201901D111171) （201901D111171）
