Promotional effects of magnesia on catalytic performance of Pt/SiO2 in hydrogenolysis of dibenzofuran

doi:10.1016/j.jcat.2019.02.017

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	Promotional effects of magnesia on catalytic performance of Pt/SiO2 in hydrogenolysis of dibenzofuran
	Zhang, Jie 1; Li, Chuang 1; Chen, Xiao 1; Chen, Yujing 1; Zhang, Liyun 2; Zhang, Bingsen 2; Liang, Changhai 1
刊名	JOURNAL OF CATALYSIS
	2019-03-01
卷号	371 页码:346-356
关键词	Dibenzofuran Hydrogenolysis Pt/SiO2 Magnesia Biphenyl
ISSN号	0021-9517
DOI	10.1016/j.jcat.2019.02.017
通讯作者	Liang, Changhai(changhai@dlut.edu.cn)
英文摘要	Developing mechanistic insights into the promotional effect of alkaline earth metal oxides in the hydrogenolysis of lignin-derived dibenzofuran (DBF) is key to rational design of high-performance catalysts for bio-oils upgrading. The promotional effect of MgO on Pt/SiO2 catalyst for the hydrogenolysis of DBF has been investigated. Small amounts of MgO enriches the electron density of Pt surface and the Lewis acidity of support, leading to significant improvement of the reactivity with an excellent turnover frequency (TOF) of 1182 h(-1) on Pt/3MgO/SiO2 compared with 789 h(-1) on Pt/SiO2. The high selectivity for biphenyl depends on the combination of the acid-base properties. With the same moles of alkaline earth dopants, the activity of dopants decreased in the order: Mg > Ca > Sr > Ba, resulting from the decrease in Pt dispersion, and, decreasing linearly with decreasing electronegativity. Additionally, in 240 h stability test, Pt/3MgO/SiO2 catalyst showed considerably stable activity and selectivity. (C) 2019 Elsevier Inc. All rights reserved.
资助项目	National Key Research & Development Program of China[2016YFB0600305]
WOS研究方向	Chemistry ; Engineering
语种	英语
出版者	ACADEMIC PRESS INC ELSEVIER SCIENCE
WOS记录号	WOS:000466251300038
资助机构	National Key Research & Development Program of China
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/133163]
专题	金属研究所_中国科学院金属研究所
通讯作者	Liang, Changhai
作者单位	1.Dalian Univ Technol, Sch Chem Engn, Lab Adv Mat & Catalyt Engn, State Key Lab Fine Chem, Dalian 116023, Peoples R China 2.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Jie,Li, Chuang,Chen, Xiao,et al. Promotional effects of magnesia on catalytic performance of Pt/SiO2 in hydrogenolysis of dibenzofuran[J]. JOURNAL OF CATALYSIS,2019,371:346-356.
APA	Zhang, Jie.,Li, Chuang.,Chen, Xiao.,Chen, Yujing.,Zhang, Liyun.,...&Liang, Changhai.(2019).Promotional effects of magnesia on catalytic performance of Pt/SiO2 in hydrogenolysis of dibenzofuran.JOURNAL OF CATALYSIS,371,346-356.
MLA	Zhang, Jie,et al."Promotional effects of magnesia on catalytic performance of Pt/SiO2 in hydrogenolysis of dibenzofuran".JOURNAL OF CATALYSIS 371(2019):346-356.