期刊
JOURNAL OF CATALYSIS
卷 385, 期 -, 页码 10-20出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jcat.2020.02.026
关键词
Aromatics; Biomass; Optimal Bronsted/Lewis acid sites; Ordered mesoporous silicas; Zirconium phosphate species
资金
- National Research Foundation (NRF) of South Korea [NRF-2018M3D3A1A01018009, NRF-2020R1A2C2006052]
The selective production of aromatic chemicals such as benzene, toluene and xylenes from biomass-derived furans are quite challenging since zeolites and other supported heterogeneous catalysts are easily deactivated by trapping oligomeric species over their pores. Herein, a series of zirconium phosphates (ZrP) grafted on ordered mesoporous architectures of silicas was prepared by nonhydrolytic sol-gel method, and evaluated for the selective production of valuable para-xylene (pX) by catalytic reaction of 2,5-dimethylfuran (DMF) with gaseous ethylene through tandem Diels-Alder cycloaddition and dehydration reactions. The surface properties such as P/Zr ratio, Bronsted (B) to Lewis (L) acid sites and grafting layer thickness of the ZrP grafted silica catalysts were largely altered by changing P/Zr ratios and parent mesoporous silica surfaces. The amounts and strengths of acidic sites including B and L sites from the active (Zr-O)(2)-PO(OH) and (Zr-O)(3)-PO species were crucial factors for the differences in pX production rate on the ZrP grafted KIT-6, SBA-15 and fumed SiO2. (C) 2020 Elsevier Inc. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据