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DOI | 10.1126/science.aan6515 |
Aqueous Au-Pd colloids catalyze selective CH4 oxidation to CH3OH with O-2 under mild conditions | |
Agarwal, Nishtha1; Freakley, Simon J.1; McVicker, Rebecca U.1; Althahban, Sultan M.2; Dimitratos, Nikolaos1; He, Qian1; Morgan, David J.1; Jenkins, Robert L.1; Willock, David J.1; Taylor, Stuart H.1; Kiely, Christopher J.1,2; Hutchings, Graham J.1 | |
2017-10-13 | |
发表期刊 | SCIENCE |
ISSN | 0036-8075 |
EISSN | 1095-9203 |
出版年 | 2017 |
卷号 | 358期号:6360页码:223-226 |
文章类型 | Article |
语种 | 英语 |
国家 | Wales; USA |
英文摘要 | The selective oxidation of methane, the primary component of natural gas, remains an important challenge in catalysis. We used colloidal gold-palladium nanoparticles, rather than the same nanoparticles supported on titanium oxide, to oxidize methane to methanol with high selectivity (92%) in aqueous solution at mild temperatures. Then, using isotopically labeled oxygen (O-2) as an oxidant in the presence of hydrogen peroxide (H2O2), we demonstrated that the resulting methanol incorporated a substantial fraction (70%) of gas-phase O-2. More oxygenated products were formed than the amount of H2O2 consumed, suggesting that the controlled breakdown of H2O2 activates methane, which subsequently incorporates molecular oxygen through a radical process. If a source of methyl radicals can be established, then the selective oxidation of methane to methanol using molecular oxygen is possible. |
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:000412841500048 |
WOS关键词 | LOW-TEMPERATURE OXIDATION ; HYDROGEN-PEROXIDE ; ALLOY NANOPARTICLES ; SOL IMMOBILIZATION ; METHANE ; CONVERSION ; ALKANES ; SURFACE ; ETHANE ; SYSTEM |
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/197092 |
专题 | 地球科学 资源环境科学 气候变化 |
作者单位 | 1.Cardiff Univ, Cardiff Catalysis Inst, Sch Chem, Main Bldg,Pk Pl, Cardiff CF10 3AT, S Glam, Wales; 2.Lehigh Univ, Dept Mat Sci & Engn, 5 East Packer Ave, Bethlehem, PA 18015 USA |
推荐引用方式 GB/T 7714 | Agarwal, Nishtha,Freakley, Simon J.,McVicker, Rebecca U.,et al. Aqueous Au-Pd colloids catalyze selective CH4 oxidation to CH3OH with O-2 under mild conditions[J]. SCIENCE,2017,358(6360):223-226. |
APA | Agarwal, Nishtha.,Freakley, Simon J..,McVicker, Rebecca U..,Althahban, Sultan M..,Dimitratos, Nikolaos.,...&Hutchings, Graham J..(2017).Aqueous Au-Pd colloids catalyze selective CH4 oxidation to CH3OH with O-2 under mild conditions.SCIENCE,358(6360),223-226. |
MLA | Agarwal, Nishtha,et al."Aqueous Au-Pd colloids catalyze selective CH4 oxidation to CH3OH with O-2 under mild conditions".SCIENCE 358.6360(2017):223-226. |
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