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Synthesis of Large‐Pore Urea‐Bridged Periodic Mesoporous Organosilicas
Author(s) -
Gao Ling,
Wei Feng,
Zhou Yu,
Fan Xiao Xing,
Wang Ying,
Zhu Jian Hua
Publication year - 2009
Publication title -
chemistry – an asian journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.18
H-Index - 106
eISSN - 1861-471X
pISSN - 1861-4728
DOI - 10.1002/asia.200800383
Subject(s) - mesoporous organosilica , pmos logic , materials science , magic angle spinning , mesoporous material , chemical engineering , urea , fourier transform infrared spectroscopy , mesoporous silica , nuclear magnetic resonance spectroscopy , catalysis , organic chemistry , chemistry , physics , transistor , quantum mechanics , voltage , engineering
Abstract Bringing order : A new class of periodic mesoporous organosilicas (PMOs) with a urea‐bridged organosilica precursor under acid‐catalyzed and inorganic‐salt‐assisted conditions was obtained. The large‐pore hybrid materials have ordered mesostructure with uniform pore size distributions, which can be seen from the TEM images.In this article we report the successful synthesis of a new class of periodic mesoporous organosilicas (PMOs) with a urea‐bridged organosilica precursor under acid‐catalyzed and inorganic‐salt‐assisted conditions. The large‐pore hybrid materials have an ordered mesostructure with uniform pore size distributions, excellent thick framework walls, thermal stability, and specific functional groups. The composition of the mesoporous organosilicas was characterized by FTIR spectroscopy, 13 C cross‐polarization magic‐angle spinning (CP MAS) NMR spectroscopy, and 29 Si MAS NMR spectroscopy.