| 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 Author | Liang, Changhai(changhai@dlut.edu.cn) |
| 2019-03-01 | |
| Source Publication | JOURNAL OF CATALYSIS
 |
| ISSN | 0021-9517 |
| Volume | 371Pages:346-356 |
| Abstract | 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. |
| Keyword | Dibenzofuran Hydrogenolysis Pt/SiO2 Magnesia Biphenyl |
| Funding Organization | National Key Research & Development Program of China |
| DOI | 10.1016/j.jcat.2019.02.017 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Key Research & Development Program of China[2016YFB0600305] |
| WOS Research Area | Chemistry ; Engineering |
| WOS Subject | Chemistry, Physical ; Engineering, Chemical |
| WOS ID | WOS:000466251300038 |
| Publisher | ACADEMIC PRESS INC ELSEVIER SCIENCE |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/133162 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Liang, Changhai |
| Affiliation | 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 |
| 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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