TY - JOUR
T1 - Rapid crystallization of Si-MCM-41 under Na-free conditions
AU - Inagaki, S.
AU - Aratani, Y.
AU - Sekine, Y.
AU - Kikuchi, E.
AU - Matsukata, M.
N1 - Funding Information:
This study was partially supported by Grant-in-Aid for the 2 I COE Research Program "Practical Nano-Chemistry" from MEXT, Japan, and Core Research for Evolutional Science and Technology (CREST).
PY - 2005
Y1 - 2005
N2 - Rapid synthesis of Si-MCM-41 was accomplished in successive two steps; (1) aging of a mixture of silica, hexadecylammonium bromide and water with an aqueous ammonia solution for a short period of 30 min, and (2) successive evaporation-to-dryness of the resultant mixture at 80°C in about 2 h. The yield of Si-MCM-41 reached 99% after calcination at 550°C. The product obtained by this method gave a well-ordered 2d-hexagonal structure with high thermal stability and water-resistance. It was noteworthy that the d 100 value of calcined Si-MCM-41 was almost the same as that of as-made Si-MCM-41, suggesting that pore wall of as-made product was dense and rigid.
AB - Rapid synthesis of Si-MCM-41 was accomplished in successive two steps; (1) aging of a mixture of silica, hexadecylammonium bromide and water with an aqueous ammonia solution for a short period of 30 min, and (2) successive evaporation-to-dryness of the resultant mixture at 80°C in about 2 h. The yield of Si-MCM-41 reached 99% after calcination at 550°C. The product obtained by this method gave a well-ordered 2d-hexagonal structure with high thermal stability and water-resistance. It was noteworthy that the d 100 value of calcined Si-MCM-41 was almost the same as that of as-made Si-MCM-41, suggesting that pore wall of as-made product was dense and rigid.
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U2 - 10.1016/s0167-2991(05)80382-9
DO - 10.1016/s0167-2991(05)80382-9
M3 - Article
AN - SCOPUS:30944442046
SN - 0167-2991
VL - 158 A
SP - 533
EP - 540
JO - Studies in Surface Science and Catalysis
JF - Studies in Surface Science and Catalysis
ER -