| アイテムタイプ |
文献 / Documents(1) |
| 公開日 |
2017-03-24 |
| アクセス権 |
|
|
アクセス権 |
open access |
| 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 |
| 出版社版DOI |
|
|
|
関連識別子 |
https://doi.org/10.1252/jcej.16we217 |
|
|
関連名称 |
10.1252/jcej.16we217 |
| 出版タイプ |
|
|
出版タイプ |
AM |
|
出版タイプResource |
http://purl.org/coar/version/c_ab4af688f83e57aa |
| タイトル |
|
|
タイトル |
Effects of acidic-basic properties on catalytic activity for the oxidative dehydrogenation of isobutane on calcium phosphates, doped and undoped with chromium |
| 著者 |
永廣, 卓哉
三栖, 央頌
新田, 真也
馬場, 雄三
加藤, 雅裕
加藤, 裕樹
二宮, 航
杉山, 茂
|
| 抄録 |
|
|
内容記述 |
Catalytic activities of calcium hydroxyapatite (HAp) and β-type tricalcium phosphate (β-TCP) were examined for use in the oxidative dehydrogenation (ODH) of isobutane. β-TCP was catalytically inactive for the ODH of isobutane, but stoichiometric HAp afforded a high isobutene yield (5.6%). The isobutane conversion and isobutene selectivity of HAp depended on the atomic ratio of Ca/P. HAp with Ca/P = 1.67 showed the highest isobutene selectivity and isobutene yield among the HAp catalysts with different Ca/P ratios. The characterization of the acidic-basic properties showed that these properties affect the catalytic performance of HAp, and that its basicity is necessary for high catalytic activity. To improve the catalytic activities of calcium phosphates, they were impregnated with Cr. Despite a much lower surface area for β-TCP, Cr-impregnated β-TCP showed a higher isobutene yield (up to 8.4%) than that of Cr-impregnated HAp. The results of the XPS measurement showed that the Cr3+ species on calcium phosphates, owing to basicity, worked as active sites in the ODH of isobutane. |
| キーワード |
|
|
主題 |
Oxidative dehydrogenation |
| キーワード |
|
|
主題 |
Isobutane |
| キーワード |
|
|
主題 |
Calcium hydroxyapatite |
| キーワード |
|
|
主題 |
Acidic property |
| キーワード |
|
|
主題 |
Basic property |
| 書誌情報 |
en : Journal of Chemical Engineering of Japan
巻 50,
号 2,
p. 122-131,
発行日 2017
|
| 収録物ID |
|
|
収録物識別子タイプ |
ISSN |
|
収録物識別子 |
00219592 |
| 収録物ID |
|
|
収録物識別子タイプ |
NCID |
|
収録物識別子 |
AA00709658 |
| 権利情報 |
|
|
権利情報 |
Copyright © 2017 The Society of Chemical Engineers, Japan |
| EID |
|
|
識別子 |
320076 |
| 言語 |
|
|
言語 |
eng |
LID201703242002.pdf (3.16 MB)
