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

doi:10.1016/j.jcat.2019.02.017

IMR OpenIR

	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
通讯作者	Liang, Changhai(changhai@dlut.edu.cn)
	2019-03-01
发表期刊	JOURNAL OF CATALYSIS
ISSN	0021-9517
卷号	371 页码:346-356
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.
关键词	Dibenzofuran Hydrogenolysis Pt/SiO2 Magnesia Biphenyl
资助者	National Key Research & Development Program of China
DOI	10.1016/j.jcat.2019.02.017
收录类别	SCI
语种	英语
资助项目	National Key Research & Development Program of China[2016YFB0600305]
WOS研究方向	Chemistry ; Engineering
WOS类目	Chemistry, Physical ; Engineering, Chemical
WOS记录号	WOS:000466251300038
出版者	ACADEMIC PRESS INC ELSEVIER SCIENCE
引用统计	被引频次：16[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/133162
专题	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.