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Promotional effects of magnesia on catalytic performance of Pt/SiO2 in hydrogenolysis of dibenzofuran
Zhang, Jie1; Li, Chuang1; Chen, Xiao1; Chen, Yujing1; Zhang, Liyun2; Zhang, Bingsen2; Liang, Changhai1
Corresponding AuthorLiang, Changhai(changhai@dlut.edu.cn)
2019-03-01
Source PublicationJOURNAL OF CATALYSIS
ISSN0021-9517
Volume371Pages:346-356
AbstractDeveloping 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.
KeywordDibenzofuran Hydrogenolysis Pt/SiO2 Magnesia Biphenyl
Funding OrganizationNational Key Research & Development Program of China
DOI10.1016/j.jcat.2019.02.017
Indexed BySCI
Language英语
Funding ProjectNational Key Research & Development Program of China[2016YFB0600305]
WOS Research AreaChemistry ; Engineering
WOS SubjectChemistry, Physical ; Engineering, Chemical
WOS IDWOS:000466251300038
PublisherACADEMIC PRESS INC ELSEVIER SCIENCE
Citation statistics
Cited Times:15[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/133162
Collection中国科学院金属研究所
Corresponding AuthorLiang, Changhai
Affiliation1.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
Recommended Citation
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.
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