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DOI | 10.1126/science.aal3439 |
Identification of single-site gold catalysis in acetylene hydrochlorination | |
Malta, Grazia1; Kondrat, Simon A.1; Freakley, Simon J.1; Davies, Catherine J.1; Lu, Li2; Dawson, Simon1; Thetford, Adam3,4; Gibson, Emma K.3,4; Morgan, David J.1; Jones, Wilm3; Wells, Peter P.3,4,5; Johnston, Peter6; Catlow, C. Richard A.1,3,4; Kiely, Christopher J.2; Hutchings, Graham J.1 | |
2017-03-31 | |
发表期刊 | SCIENCE |
ISSN | 0036-8075 |
EISSN | 1095-9203 |
出版年 | 2017 |
卷号 | 355期号:6332页码:1399-1402 |
文章类型 | Article |
语种 | 英语 |
国家 | Wales; USA; England |
英文摘要 | There remains considerable debate over the active form of gold under operating conditions of a recently validated gold catalyst for acetylene hydrochlorination. We have performed an in situ x-ray absorption fine structure study of gold/carbon (Au/C) catalysts under acetylene hydrochlorination reaction conditions and show that highly active catalysts comprise single-site cationic Au entities whose activity correlates with the ratio of Au(I): Au(III) present. We demonstrate that these Au/C catalysts are supported analogs of single-site homogeneous Au catalysts and propose a mechanism, supported by computational modeling, based on a redox couple of Au(I)-Au(III) species. |
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:000397809500037 |
WOS关键词 | X-RAY-ABSORPTION ; VAPOR-PHASE HYDROCHLORINATION ; METAL CHLORIDE CATALYSTS ; GAS SHIFT REACTION ; ZEOLITE NAY ; SPECTROSCOPY ; ALKYNES ; EXAFS |
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/195719 |
专题 | 地球科学 资源环境科学 气候变化 |
作者单位 | 1.Cardiff Univ, Sch Chem, Cardiff Catalysis Inst, 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; 3.Rutherford Appleton Lab, Res Complex Harwell, UK Catalysis Hub, Oxford OX11 0FA, England; 4.UCL, Dept Chem, Kathleen Lonsdale Bldg,Gordon St, London WC1H 0AJ, England; 5.Univ Southampton, Sch Chem, Southampton SO17 1BJ, Hants, England; 6.Diamond Light Source, Harwell Sci & Innovat Campus, Didcot OX11 0DE, Oxon, England; 7.Johnson Matthey PLC, Proc Technol, Billingham TS23 1LB, Cleveland, England |
推荐引用方式 GB/T 7714 | Malta, Grazia,Kondrat, Simon A.,Freakley, Simon J.,et al. Identification of single-site gold catalysis in acetylene hydrochlorination[J]. SCIENCE,2017,355(6332):1399-1402. |
APA | Malta, Grazia.,Kondrat, Simon A..,Freakley, Simon J..,Davies, Catherine J..,Lu, Li.,...&Hutchings, Graham J..(2017).Identification of single-site gold catalysis in acetylene hydrochlorination.SCIENCE,355(6332),1399-1402. |
MLA | Malta, Grazia,et al."Identification of single-site gold catalysis in acetylene hydrochlorination".SCIENCE 355.6332(2017):1399-1402. |
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