Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1126/science.aam9035 |
Selective anaerobic oxidation of methane enables direct synthesis of methanol | |
Sushkevich, Vitaly L.1; Palagin, Dennis1; Ranocchiari, Marco1; van Bokhoven, Jeroen A.1,2 | |
2017-05-05 | |
发表期刊 | SCIENCE |
ISSN | 0036-8075 |
EISSN | 1095-9203 |
出版年 | 2017 |
卷号 | 356期号:6337页码:523-+ |
文章类型 | Article |
语种 | 英语 |
国家 | Switzerland |
英文摘要 | Direct functionalization of methane in natural gas remains a key challenge. We present a direct stepwise method for converting methane into methanol with high selectivity (similar to 97%) over a copper-containing zeolite, based on partial oxidation with water. The activation in helium at 673 kelvin (K), followed by consecutive catalyst exposures to 7 bars of methane and then water at 473 K, consistently produced 0.204 mole of CH3OH per mole of copper in zeolite. Isotopic labeling confirmed water as the source of oxygen to regenerate the zeolite active centers and renders methanol desorption energetically favorable. On the basis of in situ x-ray absorption spectroscopy, infrared spectroscopy, and density functional theory calculations, we propose a mechanism involving methane oxidation at Cu-II oxide active centers, followed by Cu-I reoxidation by water with concurrent formation of hydrogen. |
领域 | 地球科学 ; 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000400545700034 |
WOS关键词 | LOW-TEMPERATURE ; CONTAINING ZEOLITES ; ACTIVE-SITES ; CONVERSION ; MORDENITE ; CATALYSTS ; CLUSTERS ; ZSM-5 ; MONOOXYGENASE ; STABILITY |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/195976 |
专题 | 地球科学 资源环境科学 气候变化 |
作者单位 | 1.Paul Scherrer Inst, Lab Catalysis & Sustainable Chem, CH-5232 Villigen, Switzerland; 2.ETH, Inst Chem & Bioengn, Vladimir Prelog Weg 1, CH-8093 Zurich, Switzerland |
推荐引用方式 GB/T 7714 | Sushkevich, Vitaly L.,Palagin, Dennis,Ranocchiari, Marco,et al. Selective anaerobic oxidation of methane enables direct synthesis of methanol[J]. SCIENCE,2017,356(6337):523-+. |
APA | Sushkevich, Vitaly L.,Palagin, Dennis,Ranocchiari, Marco,&van Bokhoven, Jeroen A..(2017).Selective anaerobic oxidation of methane enables direct synthesis of methanol.SCIENCE,356(6337),523-+. |
MLA | Sushkevich, Vitaly L.,et al."Selective anaerobic oxidation of methane enables direct synthesis of methanol".SCIENCE 356.6337(2017):523-+. |
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