TY - CHAP
T1 - Chemical coating of the metal oxides onto mesoporous silicas
AU - Lin, Hong Ping
AU - Liu, Yi Hsin
AU - Mou, Chung Yuan
N1 - Publisher Copyright:
© 2003 by Taylor & Francis Group, LLC.
PY - 2003/1/1
Y1 - 2003/1/1
N2 - Mesoporous silicas have been widely used to support transition metal oxides for catalytic applications because these supports are attractive for their high surface area (1000 m2/g), tuneable pore size (1.0-30.0 nm) and promotion of well-dispersed active metal sites (Kresge et al., 1992; Zhao et al., 1998). Because the nanochannels of the calcined mesoporous silicas can absorb a huge amount of water from atmosphere, which inhibits metal oxides grafting, a non-polar solvent (such as, toluene) and moisture-free reaction condition were needed to prevent the facile and fast hydrolysis/condensation reactions of the water-sensitive metal alkoxides in many typical metal-oxides grafting cases. Thus, a simple and versatile process for grafting high-content metal oxides onto mesoporous silicas is still desirable.
AB - Mesoporous silicas have been widely used to support transition metal oxides for catalytic applications because these supports are attractive for their high surface area (1000 m2/g), tuneable pore size (1.0-30.0 nm) and promotion of well-dispersed active metal sites (Kresge et al., 1992; Zhao et al., 1998). Because the nanochannels of the calcined mesoporous silicas can absorb a huge amount of water from atmosphere, which inhibits metal oxides grafting, a non-polar solvent (such as, toluene) and moisture-free reaction condition were needed to prevent the facile and fast hydrolysis/condensation reactions of the water-sensitive metal alkoxides in many typical metal-oxides grafting cases. Thus, a simple and versatile process for grafting high-content metal oxides onto mesoporous silicas is still desirable.
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U2 - 10.1201/9780203390283
DO - 10.1201/9780203390283
M3 - Chapter
AN - SCOPUS:85056041305
SN - 9780415308328
SP - 210
EP - 213
BT - Nano Science and Technology
PB - CRC Press
ER -