Ga3+-stabilized Pt in PtSn-Mg(Ga)(Al)O catalyst for promoting ethane dehydrogenation
文献类型：期刊论文
| 作者 | Zhang, Qiao; Zhang, Keting; Zhang, Shaohong ; Liu, Qiying; Chen, Lungang; Li, Xinjun; Wang, Chenguang; Ma, Longlong
|
| 刊名 | JOURNAL OF CATALYSIS
 |
| 出版日期 | 2018-12-01 |
| 卷号 | 368页码:79-88 |
| 关键词 | Calcined Mg(Ga)(Al)O LDHs Ethane dehydrogenation FTIR Pentacoordinate Ga3+ ions |
| ISSN号 | 0021-9517 |
| DOI | 10.1016/j.jcat.2018.09.009 |
| 通讯作者 | Wang, Chenguang(wangcg@ms.giec.ac.cn) ; Ma, Longlong(mall@ms.giec.ac.cn) |
| 英文摘要 | 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. |
| WOS关键词 | PROPANE DEHYDROGENATION ; ISOBUTANE DEHYDROGENATION ; FT-IR ; HYDROGENATION ; SPECTROSCOPY ; PERFORMANCE ; CLUSTERS ; METALS ; PT/MG(GA)(AL)O ; NANOPARTICLES |
| 资助项目 | 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研究方向 | Chemistry ; Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000452582500008 |
| 出版者 | ACADEMIC PRESS INC ELSEVIER SCIENCE |
| 资助机构 | 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 |
| 源URL | [http://ir.giec.ac.cn/handle/344007/29819]  |
| 专题 | 中国科学院广州能源研究所 |
| 通讯作者 | Wang, Chenguang; Ma, Longlong |
| 作者单位 | 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 |
| 推荐引用方式 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. |
入库方式： OAI收割
来源：广州能源研究所
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