| Item type |
学術雑誌論文 / Journal Article(1) |
| 公開日 |
2008-04-01 |
| タイトル |
|
|
タイトル |
Several Factors Affectingthe Novel Synthesis of Mesoporous Aluminosilicate MCM-41 through Non-hydrothermal Conditions |
|
言語 |
en |
| 言語 |
|
|
言語 |
eng |
| 主題 |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
Mesoporous aluminosilicate MCM-41 |
| 主題 |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
Non-hydrothermal synthesis |
| 主題 |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
Preparation conditions |
| 主題 |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
Acidity |
| 主題 |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
Dealkylation of 1,3,5-triisopropylbenzene |
| 資源タイプ |
|
|
資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
|
資源タイプ |
journal article |
| アクセス権 |
|
|
アクセス権 |
open access |
|
アクセス権URI |
http://purl.org/coar/access_right/c_abf2 |
| 作成者 |
Shindo, Takayoshi
Kato, Masayoshi
Kitabayashi, Shigeaki
|
| 内容記述 |
|
|
内容記述タイプ |
Abstract |
|
内容記述 |
In order to elucidate the effect of synthesis conditions of Al-MCM-41 on the characteristics of the resultant samples, Al-MCM-41 samples were synthesized through non-hydrothermal reactions under diverse conditions. The following conditions were found to be favorable to prepare Al-MCM-41 with well ordered 2D-hexagonal structure from the reaction mixtures of lower Si/Al ratios: simultaneous addition of Si and Al sources into the solution containing both template of surfactant and anti-foaming agent, in neutral to acidic media (pH 3-7), at temperatures above Krafft point of the surfactant, and under vigorous stirring. These conditions may be associated with assembly of aluminosilicate sources with uniform composition (i.e., constant Si/Al ratio) around the template micelles, promoting hydrolysis and/or condensation of aluminosilicate and forming Al-MCM-41 with highly-ordered structures. Relatively weak acid sites are mainly consisted of Al-MCM-41 and similar distributions of acid strength are observed for the samples with different Si/Al species. Dealkylation reactions of 1,3,5-triisopropylbenzene, which are well known to proceed on Bronsted acid sites are catalyzed more effectively on Al-MCM-41 samples than on HY-zeolites. This means that at least, a part of Al was incorporated into the silica framework of MCM-41 structure as tetrahedrally coordinated species in Al-MCM-41 samples prepared in the present study. |
|
言語 |
en |
| 出版タイプ |
|
|
出版タイプ |
VoR |
|
出版タイプResource |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |
| 書誌情報 |
en : International Journal of the Society of Materials Engineering for Resources
巻 10,
号 2,
p. 165-172,
発行日 2002-09-01
|
| 収録物識別子 |
|
|
収録物識別子タイプ |
ISSN |
|
収録物識別子 |
13479725 |
| 収録物識別子 |
|
|
収録物識別子タイプ |
NCID |
|
収録物識別子 |
AA1095475X |
| 出版者 |
|
|
出版者 |
The Society of Materilas Engineering for resources of Japan |
|
言語 |
en |
| 関連情報 |
|
|
関連タイプ |
isIdenticalTo |
|
|
識別子タイプ |
DOI |
|
|
関連識別子 |
https://doi.org/10.5188/ijsmer.10.165 |
ijsmer10-2i.pdf (845.7 kB)
