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| Mechanistic insights into the effects of support on the reaction pathway for aqueous-phase hydrogenation of carboxylic acid over the supported Ru catalysts | |
| Chen, Lungang; Li, YuPing; Zhang, Xinghua; Zhang, Qi; Wang, Tiejun; Ma, Longlong | |
| 2014-05-20 | |
| Source Publication | APPLIED CATALYSIS A-GENERAL
 |
| Volume | 478Pages:117-128 |
| Abstract | Several supported Ru catalysts, Ru/TiO2, Ru/ZrO2, Ru/SiO2, Ru/gamma-Al2O3 and Ru/SiO2-Al2O3, were prepared and investigated for propanoic acid aqueous-phase hydrogenation. H-2-TPR, NH3-TPD, pyridine-FTIR and propanoic acid-DRIFTS techniques were performed to explore the metal-support interaction, acid sites and key adsorption species. The effect of support on the reaction pathway of C=O hydrogenation and decarbonylation of acyl species was discussed. Compared with Ru/ZrO2 and Ru/SiO2 catalysts, high selectivity of C=O hydrogenation was obtained over the catalysts with more Lewis acid sites, such as Ru/gamma-Al2O3 and Ru/SiO2-Al2O3 catalysts. The DRIFTS results suggest that the formation of adsorption species (acyl, carboxylate and carboxylic acid) is strongly depended on the nature of support. The metal-acid bifunctional sites are indispensable for the C=O hydrogenation of acyl. However, the decarbonylation of acyl on the metal sites requires the relatively weak metal-support interaction and few of Lewis acid sites. (C) 2014 Elsevier B.V. All rights reserved. |
| Subtype | Article |
| Keyword | Aqueous-phase Hydrogenation Ru Catalyst Effect Of Support Acyl Decarbonylation Drifts |
| WOS Headings | Science & Technology ; Physical Sciences ; Life Sciences & Biomedicine |
| DOI | 10.1016/j.apcata.2014.03.038 |
| WOS Subject Extended | Chemistry ; Environmental Sciences & Ecology |
| WOS Keyword | ACETIC-ACID ; RUTHENIUM CATALYSTS ; CO ADSORPTION ; LACTIC-ACID ; METAL-CATALYSTS ; FTIR ; REDUCTION ; ETHANOL ; SURFACE ; H-2 |
| Indexed By | SCI |
| Language | 英语 |
| WOS Subject | Chemistry, Physical ; Environmental Sciences |
| WOS ID | WOS:000336878800015 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.giec.ac.cn/handle/344007/10691 |
| Collection | 中国科学院广州能源研究所 |
| Affiliation | Chinese Acad Sci, Guangzhou Inst Energy Convers, Key Lab Renewable Energy, Guangzhou 510640, Guangdong, Peoples R China |
| Recommended Citation GB/T 7714 | Chen, Lungang,Li, YuPing,Zhang, Xinghua,et al. Mechanistic insights into the effects of support on the reaction pathway for aqueous-phase hydrogenation of carboxylic acid over the supported Ru catalysts[J]. APPLIED CATALYSIS A-GENERAL,2014,478:117-128. |
| APA | Chen, Lungang,Li, YuPing,Zhang, Xinghua,Zhang, Qi,Wang, Tiejun,&Ma, Longlong.(2014).Mechanistic insights into the effects of support on the reaction pathway for aqueous-phase hydrogenation of carboxylic acid over the supported Ru catalysts.APPLIED CATALYSIS A-GENERAL,478,117-128. |
| MLA | Chen, Lungang,et al."Mechanistic insights into the effects of support on the reaction pathway for aqueous-phase hydrogenation of carboxylic acid over the supported Ru catalysts".APPLIED CATALYSIS A-GENERAL 478(2014):117-128. |
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