| Item type |
デフォルトアイテムタイプ_（フル）(1) |
| 公開日 |
2023-03-18 |
| タイトル |
|
|
タイトル |
Realumination of zeolite Y under acidic conditions |
|
言語 |
en |
| 作成者 |
Oumi, Yasunori
Takahashi, Jou
Takeshima, Kazuyoshi
Jon, Hery
Sano, Tsuneji
|
| 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 |
| 権利情報 |
|
|
権利情報 |
Copyright (c) 2007 Springer "The original publication is available at www.springerlin.com" |
| 主題 |
|
|
主題Scheme |
Other |
|
主題 |
Zeolite Y |
| 主題 |
|
|
主題Scheme |
Other |
|
主題 |
Dealumination |
| 主題 |
|
|
主題Scheme |
Other |
|
主題 |
Realumination |
| 主題 |
|
|
主題Scheme |
Other |
|
主題 |
Ammonium salt |
| 主題 |
|
|
主題Scheme |
NDC |
|
主題 |
430 |
| 内容記述 |
|
|
内容記述 |
Dealuminated zeolites Y were treated with aqueous solutions of various acids and ammonium salts to investigate the realumination behavior under acidic conditions. From the results of 27Al MAS NMR, 29Si MAS NMR and FT-IR measurements, it was found that a part of non-framework aluminum species in the dealuminated zeolite Y is effectively reinserted into the zeolite framework in CHCOONHand CHCOONH34 654 aqueous solutions. Pyridine adsorption experiments also revealed that most of incorporated aluminum species generate tetrahedrally coordinated framework aluminum species, namely Brönsted acid sites. Although the realumination also proceeded in H2SO and CH43COOH aqueous solutions, large amounts of incorporated aluminum species were not necessarily responsible for generation of Brönsted acid sites. Framework connected aluminum species, presumably as 3-fold-coordinated Lewis acidic framework aluminum species, were mainly generated. In the TEM image of the realuminated zeolite Y, needle-like crystals with ca. 25-80 nm in length were observed, which are probably due to AlOOH generated from non-framework aluminum species. |
|
言語 |
en |
| 出版者 |
|
|
出版者 |
Springer |
| 言語 |
|
|
言語 |
eng |
| 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 |
| 出版タイプ |
|
|
出版タイプ |
AO |
|
出版タイプResource |
http://purl.org/coar/version/c_b1a7d7d4d402bcce |
| 関連情報 |
|
|
|
識別子タイプ |
DOI |
|
|
関連識別子 |
10.1007/s10934-006-9003-4 |
| 関連情報 |
|
|
|
識別子タイプ |
DOI |
|
|
関連識別子 |
http://dx.doi.org/10.1007/s10934-006-9003-4 |
| 収録物識別子 |
|
|
収録物識別子タイプ |
ISSN |
|
収録物識別子 |
1380-2224 |
| 収録物識別子 |
|
|
収録物識別子タイプ |
NCID |
|
収録物識別子 |
AA11053751 |
| 開始ページ |
|
|
開始ページ |
19 |
| 書誌情報 |
Journal of Porous Materials
Journal of Porous Materials
巻 14,
号 1,
p. 19-26,
発行日 2007-03
|
| 旧ID |
20590 |
JPorousMater_14-1_19.pdf (712.2 KB)
