Knowledge Management System Of Guangzhou Institute of Energy Conversion, CAS
| Ga3+-stabilized Pt in PtSn-Mg(Ga)(Al)O catalyst for promoting ethane dehydrogenation | |
Zhang, Qiao; Zhang, Keting; Zhang, Shaohong ; Liu, Qiying; Chen, Lungang; Li, Xinjun; Wang, Chenguang; Ma, Longlong
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| 2018-12-01 | |
| Source Publication | JOURNAL OF CATALYSIS
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| ISSN | 0021-9517 |
| Volume | 368Pages:79-88 |
| Corresponding Author | Wang, Chenguang(wangcg@ms.giec.ac.cn) ; Ma, Longlong(mall@ms.giec.ac.cn) |
| Abstract | A series of catalysts [PtSn-Mg(Ga)(Al)O, Pt-Mg(Ga)(Al)O, PtSn-Mg(Al)O, Pt-Mg(Al)O, Sn-Mg(Ga)(Al)O, and Sn-Mg(Al)O] were prepared and investigated to understand the roles of Pt, Ga, and Sn in the ethane dehydrogenation reaction. In the catalytic dehydrogenation of ethane, PtSn-Mg(Ga)(Al)O displays excellent specific activity for ethene formation. It obtained 25% conversion of ethane in an ethane-poor feed (10% in nitrogen). This work relates the chemical and electronic properties of the catalysts to the chemical activity. Pt is the active site, and Ga has a promotion effect for ethane dehydrogenation. High-resolution transmission electron spectroscopy and Fourier transform infrared spectroscopic characterizations indicate that the addition of Sn and Ga can reduce the size of metal particles, and there is an electronic interaction between Pt and Ga. Further, we found that the calcined Mg(Ga)(Al)O layer double hydrotalcites contain a small amount of pentacoordinate Ga3+ ions, which are able to disperse and stabilize Pt clusters. The promotion of ethane dehydrogenation activity can be attributed to the electronic interactions between Pt and Ga. This insight may provide a new strategy for designing catalysts for light alkane dehydrogenation. (C) 2018 Elsevier Inc. All rights reserved. |
| Keyword | Calcined Mg(Ga)(Al)O LDHs Ethane dehydrogenation FTIR Pentacoordinate Ga3+ ions |
| DOI | 10.1016/j.jcat.2018.09.009 |
| WOS Keyword | PROPANE DEHYDROGENATION ; ISOBUTANE DEHYDROGENATION ; FT-IR ; HYDROGENATION ; SPECTROSCOPY ; PERFORMANCE ; CLUSTERS ; METALS ; PT/MG(GA)(AL)O ; NANOPARTICLES |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | Natural Science Foundation of China[51476175] ; Natural Science Foundation of China[51536009] ; Natural Science Foundation of China[51776206] ; Natural Science Foundation of China[51706231] ; Natural Science Foundation of Guangdong Province[2017A030310485] ; Local Innovative and Research Teams Project of Guangdong Pearl River Talents Program[2017BT01N092] ; Chinese Academy of Sciences Hundred Talent Program |
| WOS Research Area | Chemistry ; Engineering |
| Funding Organization | Natural Science Foundation of China ; Natural Science Foundation of Guangdong Province ; Local Innovative and Research Teams Project of Guangdong Pearl River Talents Program ; Chinese Academy of Sciences Hundred Talent Program |
| WOS Subject | Chemistry, Physical ; Engineering, Chemical |
| WOS ID | WOS:000452582500008 |
| Publisher | ACADEMIC PRESS INC ELSEVIER SCIENCE |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.giec.ac.cn/handle/344007/29820 |
| Collection | 中国科学院广州能源研究所 |
| Corresponding Author | Wang, Chenguang; Ma, Longlong |
| Affiliation | Chinese Acad Sci, Guangdong Prov Key Lab New & Renewable Energy Res, CAS Key Lab Renewable Energy, Guangzhou Inst Energy Convers, Guangzhou 510640, Guangdong, Peoples R China |
| Recommended Citation GB/T 7714 | Zhang, Qiao,Zhang, Keting,Zhang, Shaohong,et al. Ga3+-stabilized Pt in PtSn-Mg(Ga)(Al)O catalyst for promoting ethane dehydrogenation[J]. JOURNAL OF CATALYSIS,2018,368:79-88. |
| APA | Zhang, Qiao.,Zhang, Keting.,Zhang, Shaohong.,Liu, Qiying.,Chen, Lungang.,...&Ma, Longlong.(2018).Ga3+-stabilized Pt in PtSn-Mg(Ga)(Al)O catalyst for promoting ethane dehydrogenation.JOURNAL OF CATALYSIS,368,79-88. |
| MLA | Zhang, Qiao,et al."Ga3+-stabilized Pt in PtSn-Mg(Ga)(Al)O catalyst for promoting ethane dehydrogenation".JOURNAL OF CATALYSIS 368(2018):79-88. |
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