TY - JOUR
T1 - Chemical coating of the aluminum oxides onto mesoporous silicas by a one-pot grafting method
AU - Liu, Yi Hsin
AU - Lin, Hong Ping
AU - Mou, Chung Yuan
AU - Cheng, Bo Wen
AU - Cheng, Chi Feng
N1 - Funding Information:
This research was financially supported by National Science Council of Taiwan (NSC-90-2113-M-002-038).
PY - 2003
Y1 - 2003
N2 - Using a suitable solvent (such as, 1-propanol) that prevents the self-condensation of aluminum iso-propoxide and extract the quaternary ammonium surfactant out of the nanochannels, a high-coverage aluminum oxide (Al/Si = 0.3-0.5) can be chemically coated onto acid-made mesoporous silica. The aluminum oxide coated mesoporous silica has the both advantages of aluminum oxide (highly hydrothermal stability) and mesoporous materials (large pore size of 2.7 nm, high surface area of around 800 m2/g, and well-ordered mesostructure). With the well-dispersity, high accessibility and large pore size, the aluminum oxide coated mesoporous silica was supposed to be an acid-catalyst for large molecules.
AB - Using a suitable solvent (such as, 1-propanol) that prevents the self-condensation of aluminum iso-propoxide and extract the quaternary ammonium surfactant out of the nanochannels, a high-coverage aluminum oxide (Al/Si = 0.3-0.5) can be chemically coated onto acid-made mesoporous silica. The aluminum oxide coated mesoporous silica has the both advantages of aluminum oxide (highly hydrothermal stability) and mesoporous materials (large pore size of 2.7 nm, high surface area of around 800 m2/g, and well-ordered mesostructure). With the well-dispersity, high accessibility and large pore size, the aluminum oxide coated mesoporous silica was supposed to be an acid-catalyst for large molecules.
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U2 - 10.1016/S0167-2991(03)80387-7
DO - 10.1016/S0167-2991(03)80387-7
M3 - Article
AN - SCOPUS:84872662360
SN - 0167-2991
VL - 146
SP - 311
EP - 314
JO - Studies in Surface Science and Catalysis
JF - Studies in Surface Science and Catalysis
ER -