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DOI | 10.1126/science.aal3573 |
CATALYSIS Active sites for CO2 hydrogenation to methanol on Cu/ZnO catalysts | |
Kattel, Shyam1; Ramirez, Pedro J.2; Chen, Jingguang G.1,3; Rodriguez, Jose A.1,4; Liu, Ping1,4 | |
2017-03-24 | |
发表期刊 | SCIENCE |
ISSN | 0036-8075 |
EISSN | 1095-9203 |
出版年 | 2017 |
卷号 | 355期号:6331页码:1296-+ |
文章类型 | Article |
语种 | 英语 |
国家 | USA; Venezuela |
英文摘要 | The active sites over commercial copper/zinc oxide/aluminum oxide (Cu/ZnO/Al2O3) catalysts for carbon dioxide (CO2) hydrogenation to methanol, the Zn-Cu bimetallic sites or ZnO-Cu interfacial sites, have recently been the subject of intense debate. We report a direct comparison between the activity of ZnCu and ZnO/Cu model catalysts for methanol synthesis. By combining x-ray photoemission spectroscopy, density functional theory, and kinetic Monte Carlo simulations, we can identify and characterize the reactivity of each catalyst. Both experimental and theoretical results agree that ZnCu undergoes surface oxidation under the reaction conditions so that surface Zn transforms into ZnO and allows ZnCu to reach the activity of ZnO/Cu with the same Zn coverage. Our results highlight a synergy of Cu and ZnO at the interface that facilitates methanol synthesis via formate intermediates. |
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:000397082900035 |
WOS关键词 | COPPER ; CU ; SURFACE ; ZNO ; CONVERSION ; PROMOTION ; OXIDE |
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/195680 |
专题 | 地球科学 资源环境科学 气候变化 |
作者单位 | 1.Div Chem, Brookhaven Natl Lab, Upton, NY 11973 USA; 2.Cent Univ Venezuela, Fac Ciencias, Caracas 1020, Venezuela; 3.Columbia Univ, Dept Chem Engn, New York, NY 10027 USA; 4.SUNY Stony Brook, Dept Chem, Stony Brook, NY 11790 USA |
推荐引用方式 GB/T 7714 | Kattel, Shyam,Ramirez, Pedro J.,Chen, Jingguang G.,et al. CATALYSIS Active sites for CO2 hydrogenation to methanol on Cu/ZnO catalysts[J]. SCIENCE,2017,355(6331):1296-+. |
APA | Kattel, Shyam,Ramirez, Pedro J.,Chen, Jingguang G.,Rodriguez, Jose A.,&Liu, Ping.(2017).CATALYSIS Active sites for CO2 hydrogenation to methanol on Cu/ZnO catalysts.SCIENCE,355(6331),1296-+. |
MLA | Kattel, Shyam,et al."CATALYSIS Active sites for CO2 hydrogenation to methanol on Cu/ZnO catalysts".SCIENCE 355.6331(2017):1296-+. |
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