离子液体辅助催化CO_2与环氧丙烷合成环碳酸酯
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摘要
Zn-Fe双金属氰化物(DMC)催化剂通过清洁高效的机械球磨法来制备,并以咪唑类低共熔溶剂为助催化剂,通过协同催化二氧化碳(CO2)与1,2-环氧丙烷(PO)的环加成反应合成环碳酸酯(PC)。利用一系列技术表征手段对主催化剂与环加成产物PC的结构及其性能进行了测试表征。结果表明,咪唑类离子液体可有效辅助主催化剂催化CO2与PO的环加成反应,离子液体可改善该进程的催化活性和产率。
The clean and efficient mechanical ball mill was a successfully method to prepare Zn-Fe double metal cyanide( DMC) catalysts,and the cyclic carbonates( PC) of carbon dioxide( CO2) and 1,2-propylene oxide( PO) were synthesized by using this catalyst with assistance of imidazole ionic liquids. The structure and properties of the main catalyst and cycloaddition product PC were tested and characterized by a number of column characterization methods. The results indicated that the imidazole ionic liquids can effectively aid the main catalyst to catalyze the cycloaddition reaction of CO2 and PO,so it could be proved that the ionic liquids could improve the catalytic activity and yield of the process.
The clean and efficient mechanical ball mill was a successfully method to prepare Zn-Fe double metal cyanide( DMC) catalysts,and the cyclic carbonates( PC) of carbon dioxide( CO2) and 1,2-propylene oxide( PO) were synthesized by using this catalyst with assistance of imidazole ionic liquids. The structure and properties of the main catalyst and cycloaddition product PC were tested and characterized by a number of column characterization methods. The results indicated that the imidazole ionic liquids can effectively aid the main catalyst to catalyze the cycloaddition reaction of CO2 and PO,so it could be proved that the ionic liquids could improve the catalytic activity and yield of the process.
引文
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[2] Wang W H,Himeda Y,Muckerman J T,et al. CO2Hydrogenation to formate and methanol as an alternative to photo-and electrochemical CO2reduction[J]. Chemical Reviews,2015,115(23):12936-12973.
[3]王强,孙京.过渡金属催化不饱和烃与二氧化碳的羧化反应[J].化学通报,2018,81(4):312-318.
[4] Kleij A W,North M,Urakawa A. Cover picture:CO2catalysis(Chem Sus Chem 6/2017)[J]. Chem Sus Chem,2017,10(6):1034.
[5] Roshan K R,Kathalikkattil A C,Tharun J,et al. Amino acid/KI as multi-functional synergistic catalysts for cyclic carbonate synthesis from CO2under mild reaction conditions:a DFT corroborated study[J]. Dalton Transactions,2013,43(5):2023-2031.
[6] Yang Z,Sun J,Cheng W,et al. Biocompatible and recyclable amino acid binary catalyst for efficient chemical fixation of CO2[J]. Catalysis Communications,2014,44(1):6-9.
[7] Buonerba A,Nisi A D,Grassi A,et al. Novel iron(III)catalyst for the efficient and selective coupling of carbon dioxide and epoxides to form cyclic carbonates[J]. Catalysis Science&Technology,2014,5(1):118-123.
[8] Comerford J W,Ingram I D V,North M,et al. Cheminform abstract:sustainable metal-based catalysts for the synthesis of cyclic carbonates containing five-membered rings[J]. Green Chemistry,2015,17(4):1966-1987.
[9] Dai W L,Jin B,Luo S L,et al. Cross-linked polymer grafted with functionalized ionic liquid as reusable and efficient catalyst for the cycloaddition of carbon dioxide to epoxides[J]. Journal of CO2Utilization,2013(3/4):7-13.
[10] Saptal V B,Nanda B,Parida K M,et al. Fabrication of amine and zirconia on MCM-41 as acid-base catalysts for the fixation of carbon dioxide[J]. Chemcatchem,2017,9(21):4105-4111.
[11] Yue S,Hao X J,Wang P P,et al. Amino acid-based ionic liquids for CO2,conversion to form cyclic carbonate under solvent-free conditions[J]. Molecular Catalysis,2017,433:420-429.
[12] Zhang W,Lu L,Cheng Y,et al. Clean and rapid synthesis of double metal cyanide complexes using mechanochemistry[J]. Green Chemistry,2011,13(10):2701-2703.
[13] Guo Z,Lin Q,Zhu L,et al. Nanolamellar Zn-Ni/Co-Ni catalysts introduced by ball milling for the copolymerization of CO2with propylene oxide[J]. Nanoscience&Nanotechnology Letters,2014,6(4):353-356.
[14] Dharman M M,Ahn J Y,Lee M K,et al. Moderate route for the utilization of CO2-microwave induced copolymerization with cyclohexene oxide using highly efficient double metal cyanide complex catalysts based on Zn3[Co(CN)6][J].Green Chemistry,2008,10(6):678-684.
[15] Peeters A,Valvekens P,Ameloot R,et al. Zn-Co Double metal cyanides as heterogeneous catalysts for hydroamination:A structure-activity relationship[J]. Acs Catalysis,2013,3(4):597-607.