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In-Exchanged CHA Zeolites for Selective Dehydrogenation of Ethane: Characterization and Effect of Zeolite Framework Type
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Title: | In-Exchanged CHA Zeolites for Selective Dehydrogenation of Ethane: Characterization and Effect of Zeolite Framework Type |
Authors: | Maeno, Zen Browse this author →KAKEN DB | Wu, Xiaopeng Browse this author | Yasumura, Shunsaku Browse this author | Toyao, Takashi Browse this author →KAKEN DB | Kanda, Yasuharu Browse this author | Shimizu, Ken-ichi Browse this author →KAKEN DB |
Keywords: | In-exchanged zeolite | reductive solid-state ion-exchange (RSSIE) | ethane dehydrogenation | isolated surface hydride |
Issue Date: | Jul-2020 |
Publisher: | MDPI |
Journal Title: | Catalysts |
Volume: | 10 |
Issue: | 7 |
Start Page: | 807 |
Publisher DOI: | 10.3390/catal10070807 |
Abstract: | In this study, the characterization of In-exchanged CHA zeolite (In-CHA (SiO2/Al2O3= 22.3)) was conducted by in-situ X-ray diffraction (XRD) and ammonia temperature-programmed desorption (NH3-TPD). We also prepared other In-exchanged zeolites with different zeolite structures (In-MFI (SiO2/Al2O3= 22.3), In-MOR (SiO2/Al2O3= 20), and In-BEA (SiO2/Al2O3= 25)) and different SiO2/Al(2)O(3)ratios (In-CHA(Al-rich) (SiO2/Al2O3= 13.7)). Their catalytic activities in nonoxidative ethane dehydrogenation were compared. Among the tested catalysts, In-CHA(Al-rich) provided the highest conversion. From kinetic experiments and in-situ Fourier transform infrared (FTIR) spectroscopy, [InH2](+)ions are formed regardless of SiO2/Al(2)O(3)ratio, serving as the active sites. |
Rights: | https://creativecommons.org/licenses/by/4.0/ |
Type: | article |
URI: | http://hdl.handle.net/2115/79160 |
Appears in Collections: | 触媒科学研究所 (Institute for Catalysis) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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