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Periodic Mesoporous Organosilica with a Basic Urea‐Derived Framework for Enhanced Carbon Dioxide Capture and Conversion Under Mild Conditions
Author(s) -
Liu Mengshuai,
Lu Xingyuan,
Shi Lei,
Wang Fangxiao,
Sun Jianmin
Publication year - 2017
Publication title -
chemsuschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.412
H-Index - 157
eISSN - 1864-564X
pISSN - 1864-5631
DOI - 10.1002/cssc.201600973
Subject(s) - catalysis , mesoporous organosilica , urea , mesoporous material , carbon dioxide , yield (engineering) , pyridine , chemistry , materials science , chemical engineering , organic chemistry , mesoporous silica , composite material , engineering
A periodic mesoporous organosilica with a basic urea‐derived framework (PMO‐UDF) was prepared and characterized thoroughly. The PMO‐UDF showed an enhanced CO 2 capture capacity at low pressure (≤1 atm) and an exceptional catalytic activity in CO 2 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 CO 2 capture and conversion.