Periodic Mesoporous Organosilica with a Basic Urea‐Derived Framework for Enhanced Carbon Dioxide Capture and Conversion Under Mild Conditions. Issue 6 (31st October 2016)

• Record Type: Journal Article
• Authors: Liu, Mengshuai; Lu, Xingyuan; Shi, Lei; Wang, Fangxiao; Sun, Jianmin
• Is Part Of: ChemSusChem. Volume 10:Issue 6(2017)
• Page Start: 1110
• Page End: 1119
• Publication Date: 2016-10-31
• Subjects: adsorption -- carbon storage -- heterogeneous catalysis -- mesoporous materials -- reaction mechanisms; Green chemistry -- Periodicals; Sustainable engineering -- Periodicals; Chemistry -- Periodicals; Chemical engineering -- Periodicals; 660
• DOI: 10.1002/cssc.201600973
• Languages: English
• ISSNs: 1864-5631

Abstract

Abstract: A periodic mesoporous organosilica with a basic urea‐derived framework (PMO‐UDF) was prepared and characterized thoroughly. The PMO‐UDF showed an enhanced CO2 capture capacity at low pressure (≤1 atm) and an exceptional catalytic activity in CO2 coupling 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 CO2 capture and conversion. Abstract : CO2 to carbonates : We prepared new periodic mesoporous organosilica with a basic urea‐derived framework that exhibited an enhanced CO2 capture capacity at low pressure and an exceptional catalytic activity for the selective coupling of CO2 and epoxides into cyclic carbonates under mild, solventless, and transition‐metal‐free conditions.