title: Periodic Mesoporous Organosilica with a Basic Urea-Derived Framework for Enhanced Carbon Dioxide Capture and Conversion Under Mild Conditions.
abstract: A periodic mesoporous organosilica with a basic urea-derived framework (PMO-UDF) was prepared and characterized thoroughly. The PMO-UDF showed an enhanced CO2capture capacity at low pressure (≤1 atm) and an exceptional catalytic activity in CO2coupling reactions with various epoxides to yield the corresponding cyclic carbonates under mild conditions because of the presence of a high surface area, basic pyridine units, and multiple hydrogen-bond donors. The highly stable catalyst could be reused at least six successive times without a significant decrease of the catalytic efficiency or structural deterioration, thus the PMO-UDF composite is considered as a promising material for CO2capture and conversion.
authors: State Key Laboratory of Urban Water Resource and Environment, MIIT Key Laboratory of Critical Materials Technology, for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150080, China.
authors: Mengshuai
authors: M
authors: Liu
authors: School of Science, Northeast Forestry University, Harbin, 150040, China.
authors: Xingyuan
authors: X
authors: Lu
authors: State Key Laboratory of Urban Water Resource and Environment, MIIT Key Laboratory of Critical Materials Technology, for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150080, China.
authors: Lei
authors: L
authors: Shi
authors: State Key Laboratory of Urban Water Resource and Environment, MIIT Key Laboratory of Critical Materials Technology, for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150080, China.
authors: Fangxiao
authors: F
authors: Wang
authors: State Key Laboratory of Urban Water Resource and Environment, MIIT Key Laboratory of Critical Materials Technology, for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150080, China.|Harbin Institute of Technology (Shenzhen), Shenzhen Key Laboratory of Organic Pollution Prevention and Control, Shenzhen, 518055, China.
authors: Jianmin
authors: J
authors: Sun
mesh_terms: D000327:Adsorption; D002245:Carbon Dioxide / Q000737:chemistry* / Q000302:isolation & purification*; D002384:Catalysis; D004852:Epoxy Compounds / Q000737:chemistry; D055772:Green Chemistry Technology; D006863:Hydrogen-Ion Concentration; D017646:Organosilicon Compounds / Q000737:chemistry*; D016062:Porosity; D011312:Pressure; D014508:Urea / Q000737:chemistry*
chemical_list: D004852:Epoxy Compounds; D017646:Organosilicon Compounds; D002245:Carbon Dioxide; D014508:Urea
keywords: adsorption; carbon storage; heterogeneous catalysis; mesoporous materials; reaction mechanisms