Direct, Nonoxidative Conversion of Methane to Ethylene, Aromatics, and Hydrogen
文献类型：期刊论文
| 作者 | Guo, XG ; Fang, GZ ; Li, G ; Ma, H ; Fan, HJ ; Yu, L ; Ma, C ; Wu, X ; Deng, DH ; Wei, MM ; Tan, DL ; Si, R ; Zhang, S ; Li, JQ ; Sun, LT ; Tang, ZC ; Pan, XL ; Bao, XH |
| 刊名 | SCIENCE
 |
| 出版日期 | 2014 |
| 卷号 | 344期号:6184页码:616 |
| ISSN号 | 0036-8075 |
| 通讯作者 | Bao, XH (reprint author), Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China. |
| 中文摘要 | The efficient use of natural gas will require catalysts that can activate the first C-H bond of methane while suppressing complete dehydrogenation and avoiding overoxidation. We report that single iron sites embedded in a silica matrix enable direct, nonoxidative conversion of methane, exclusively to ethylene and aromatics. The reaction is initiated by catalytic generation of methyl radicals, followed by a series of gas-phase reactions. The absence of adjacent iron sites prevents catalytic C-C coupling, further oligomerization, and hence, coke deposition. At 1363 kelvin, methane conversion reached a maximum at 48.1% and ethylene selectivity peaked at 48.4%, whereas the total hydrocarbon selectivity exceeded 99%, representing an atom-economical transformation process of methane. The lattice-confined single iron sites delivered stable performance, with no deactivation observed during a 60-hour test. |
| 资助信息 | Strategic Priority Research Program of the Chinese Academy of Sciences [XDA09030101]; National Natural Science Foundation of China [21321002, 11079005, 21033009, 21103181]; Ministry of Science and Technology of China [2011CBA00503, 2013CB933100] |
| 语种 | 英语 |
| 公开日期 | 2015-04-14 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/59658]  |
| 专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
| 推荐引用方式 GB/T 7714 | Guo, XG,Fang, GZ,Li, G,et al. Direct, Nonoxidative Conversion of Methane to Ethylene, Aromatics, and Hydrogen[J]. SCIENCE,2014,344(6184):616. |
| APA | Guo, XG.,Fang, GZ.,Li, G.,Ma, H.,Fan, HJ.,...&Bao, XH.(2014).Direct, Nonoxidative Conversion of Methane to Ethylene, Aromatics, and Hydrogen.SCIENCE,344(6184),616. |
| MLA | Guo, XG,et al."Direct, Nonoxidative Conversion of Methane to Ethylene, Aromatics, and Hydrogen".SCIENCE 344.6184(2014):616. |
入库方式： OAI收割
来源：物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。