| ID | 109877 |
| Author |
Ehiro, Takuya
Department of Chemical Science and Technology, Tokushima University
Itagaki, Ai
Department of Chemical Science and Technology, Tokushima University
Misu, Hisanobu
Department of Chemical Science and Technology, Tokushima University
Kurashina, Masashi
Department of Life System, Institute of Technology and Science, Tokushima University
Tokushima University Educator and Researcher Directory
KAKEN Search Researchers
Nakagawa, Keizo
Department of Advanced Materials, Institute of Technology and Science, Tokushima University|Department of Resource Circulation Engineering, Center for Frontier Research of Engineering, Tokushima University
KAKEN Search Researchers
Katoh, Masahiro
Department of Advanced Materials, Institute of Technology and Science, Tokushima University
Tokushima University Educator and Researcher Directory
KAKEN Search Researchers
Katou, Yuuki
Otake Research Laboratories, Mitsubishi Rayon Co. Ltd.
Ninomiya, Wataru
Otake Research Laboratories, Mitsubishi Rayon Co. Ltd.
Sugiyama, Shigeru
Department of Advanced Materials, Institute of Technology and Science, Tokushima University|Department of Resource Circulation Engineering, Center for Frontier Research of Engineering, Tokushima University
Tokushima University Educator and Researcher Directory
KAKEN Search Researchers
|
| Keywords | Oxidative Dehydrogenation
Isobutane
Isobutene
MCM-41
Metal-Doping
|
| Content Type |
Journal Article
|
| Description | MCM-41 (#41 Mobil Composition of Matter) is a favorable material for heterogeneous reactions because of its unique porous structure. However, the catalytic activity of MCM-41 for the oxidative dehydrogenation (ODH) of isobutane to isobutene is known to be quite low. In the present study, a metal-doping method was employed to improve this catalytic activity. Doping of Cr, Co, Ni, or Mo into MCM-41 resulted in a great improvement in the catalytic activity. Since chromium-doped MCM-41 (Cr-MCM-41) showed the greatest catalytic activity among these catalysts, its redox property was further analyzed via XPS, XAFS and H2-TPR techniques. The XPS spectrum of Cr-MCM-41 suggested that it has Cr3+ and Cr6+ species on its surface. Also, a pre-edge peak due to Cr6+ species was confirmed in the XANES spectrum of Cr-MCM-41. In H2-TPR measurement, Cr-MCM-41 was more reducible than crystalline Cr2O3, which showed low catalytic activity for the ODH of isobutane. The reducible Cr6+ species on Cr-MCM-41 contributed to an improvement in the catalytic activity of MCM-41.
|
| Journal Title |
Journal of Chemical Engineering of Japan
|
| ISSN | 00219592
|
| NCID | AA00709658
|
| Volume | 49
|
| Issue | 2
|
| Start Page | 136
|
| End Page | 143
|
| Sort Key | 136
|
| Published Date | 2016
|
| Remark | Copyright © 2016 The Society of Chemical Engineers, Japan
|
| EDB ID | |
| DOI (Published Version) | |
| URL ( Publisher's Version ) | |
| FullText File | |
| language |
eng
|
| TextVersion |
Author
|
| departments |
Science and Technology
|
