中国科学院大连化学物理研究所机构知识库
Advanced  
DICP OpenIR  > 中国科学院大连化学物理研究所  > 期刊论文
题名: Direct, Nonoxidative Conversion of Methane to Ethylene, Aromatics, and Hydrogen
作者: Guo, Xiaoguang1;  Fang, Guangzong1;  Li, Gang2, 3;  Ma, Hao1;  Fan, Hongjun2;  Yu, Liang1;  Ma, Chao;  Wu, Xing5;  Deng, Dehui1;  Wei, Mingming1;  Tan, Dali1;  Si, Rui6;  Zhang, Shuo6;  Li, Jianqi4;  Sun, Litao5;  Tang, Zichao2;  Pan, Xiulian1;  Bao, Xinhe1
刊名: SCIENCE
发表日期: 2014-05-09
DOI: 10.1126/science.1253150
卷: 344, 期:6184, 页:616-619
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology
类目[WOS]: Multidisciplinary Sciences
研究领域[WOS]: Science & Technology - Other Topics
英文摘要: 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.
关键词[WOS]: LOWER OLEFINS ;  CATALYSTS ;  CARBON ;  BENZENE ;  AROMATIZATION ;  DECOMPOSITION ;  PYROLYSIS ;  PROGRESS ;  GAS ;  CO
语种: 英语
WOS记录号: WOS:000335537400039
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/145594
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

Files in This Item:

There are no files associated with this item.


作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Mol React Dynam, Dalian 116023, Peoples R China
3.Dalian Univ Technol, State Key Lab Fine Chem, Inst Coal Chem Engn, Sch Chem Engn, Dalian 116012, Peoples R China
4.Chinese Acad Sci, Beijing Natl Lab Condensed Matter Phys, Inst Phys, Beijing 100190, Peoples R China
5.Southeast Univ, Nanopico Ctr, Key Lab Microelectromech Syst MEMS, Minist Educ, Nanjing 210096, Jiangsu, Peoples R China
6.Chinese Acad Sci, Shanghai Synchrotron Radiat Facil, Shanghai Inst Appl Phys, Shanghai 201204, Peoples R China

Recommended Citation:
Guo, Xiaoguang,Fang, Guangzong,Li, Gang,et al. Direct, Nonoxidative Conversion of Methane to Ethylene, Aromatics, and Hydrogen[J]. SCIENCE,2014,344(6184):616-619.
Service
 Recommend this item
 Sava as my favorate item
 Show this item's statistics
 Export Endnote File
Google Scholar
 Similar articles in Google Scholar
 [Guo, Xiaoguang]'s Articles
 [Fang, Guangzong]'s Articles
 [Li, Gang]'s Articles
CSDL cross search
 Similar articles in CSDL Cross Search
 [Guo, Xiaoguang]‘s Articles
 [Fang, Guangzong]‘s Articles
 [Li, Gang]‘s Articles
Related Copyright Policies
Null
Social Bookmarking
  Add to CiteULike  Add to Connotea  Add to Del.icio.us  Add to Digg  Add to Reddit 
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.

 

 

Valid XHTML 1.0!
Powered by CSpace