Mechanistic insights into the effects of support on the reaction pathway for aqueous-phase hydrogenation of carboxylic acid over the supported Ru catalysts

doi:10.1016/j.apcata.2014.03.038

GIEC OpenIR > 中国科学院广州能源研究所

	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
发表期刊	APPLIED CATALYSIS A-GENERAL
卷号	478 页码:117-128
摘要	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.
文章类型	Article
关键词	Aqueous-phase Hydrogenation Ru Catalyst Effect Of Support Acyl Decarbonylation Drifts
WOS标题词	Science & Technology ; Physical Sciences ; Life Sciences & Biomedicine
DOI	10.1016/j.apcata.2014.03.038
研究领域[WOS]	Chemistry ; Environmental Sciences & Ecology
关键词[WOS]	ACETIC-ACID ; RUTHENIUM CATALYSTS ; CO ADSORPTION ; LACTIC-ACID ; METAL-CATALYSTS ; FTIR ; REDUCTION ; ETHANOL ; SURFACE ; H-2
收录类别	SCI
语种	英语
WOS类目	Chemistry, Physical ; Environmental Sciences
WOS记录号	WOS:000336878800015
引用统计	被引频次：53[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.giec.ac.cn/handle/344007/10691
专题	中国科学院广州能源研究所
作者单位	Chinese Acad Sci, Guangzhou Inst Energy Convers, Key Lab Renewable Energy, Guangzhou 510640, Guangdong, Peoples R China
推荐引用方式 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.