NDLI: Tungstophosphoric acid-based mesoporous materials anchored to MCM-41: characterization and catalytic performance in esterification of levulinic acid with ethanol

Content Provider	Springer Nature Link
Author	Wu, Min Zhao, Qing Qing Li, Jie Su, Xiao Li Wu, Hai Yan Guan, Xin Xin Zheng, Xiu Cheng
Copyright Year	2016
Abstract	MCM-41 was synthesized with a non-hydrothermal procedure and then used to assemble a series of supported H$_{3}$PW$_{12}$O$_{40}$ (HPW) mesoporous catalysts. The optimization of the reaction conditions for LA esterification with ethanol, such as the reaction temperature, reaction time, the reactant molar ratio and the catalyst dosages was performed to maximize the conversion of LA over 25 wt% HPW/MCM-41 catalysts. The catalytic performance of the resultant HPW/MCM-41 catalysts was investigated. The results show that these catalysts retain the hexagonal phase of MCM-41 and the Keggin characteristic of HPW. Although their textural parameters decrease with increasing HPW loading, these catalysts still exhibit much higher specific surface area and pore volume (S$_{BET}$ ≥ 446 m$^{2}$ g$^{−1}$, V$_{P}$ ≥ 0.345 cm$^{3}$ g$^{−1}$) than that of HPW (S$_{BET}$ = 5 m$^{2}$ g$^{−1}$, V$_{P}$ = 0.010 cm$^{3}$ g$^{−1}$). LA conversion increases with increasing HPW loading and the value may reach up to 83.7 % over 45 wt% HPW/MCM-41 under the present conditions. The resultant ethyl levulinate is promising in reducing the consumption of petroleum-derived fossil fuels.
Starting Page	1329
Ending Page	1338
Page Count	10
File Format	PDF
ISSN	13802224
Journal	Journal of Porous Materials
Volume Number	23
Issue Number	5
e-ISSN	15734854
Language	English
Publisher	Springer US
Publisher Date	2016-04-29
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	MCM-41 HPW/MCM-41 Mesoporous solid acid Esterification Levulinic acid Ethanol Catalysis Characterization and Evaluation of Materials Physical Chemistry
Content Type	Text
Resource Type	Article
Subject	Mechanics of Materials Materials Science Mechanical Engineering

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