Influence of the preparation method of sulfated zirconia nanoparticles for levulinic acid esterification

被引：12
|
作者：
Popova, Margarita [1 ]
Szegedi, Agnes [2 ]
Lazarova, Hristina [1 ]
Dimitrov, Momtchil [1 ]
Kalvachev, Yuri [3 ]
Atanasova, Genoveva [4 ]
Ristic, Alenka [5 ]
Wilde, Nicole [6 ]
Glaeser, Roger [6 ]
机构：
[1] Bulgarian Acad Sci, Ctr Phytochem, Inst Organ Chem, BU-1113 Sofia, Bulgaria
[2] Hungarian Acad Sci, Inst Mat & Environm Chem, Res Ctr Nat Sci, Magyar Tudosok Korutja 2, H-1117 Budapest, Hungary
[3] Bulgarian Acad Sci, Inst Mineral & Crystallog, BU-1113 Sofia, Bulgaria
[4] Bulgarian Acad Sci, Inst Gen & Inorgan Chem, BU-1113 Sofia, Bulgaria
[5] Natl Inst Chem Slovenia, Hajdrihova 19, Ljubljana 1001, Slovenia
[6] Univ Leipzig, Inst Chem Technol, Linnestr 3, D-04103 Leipzig, Germany
来源：
REACTION KINETICS MECHANISMS AND CATALYSIS | 2017年 / 120卷 / 01期
关键词：
Ethyl levulinate; Esterification; Nanosized sulfated zirconia; Biomass utilization; ETHYL LEVULINATE; CATALYTIC-ACTIVITY; CHEMICALS; BIOMASS; TRANSFORMATION; DERIVATIVES; CONVERSION; ETHANOL; OXIDES; FUELS;
D O I：
10.1007/s11144-016-1088-4
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Zirconia nanomaterials were prepared by hydrothermal synthesis with or without template and were modified by post synthesis method with sulfate groups. The materials were thoroughly characterized by X-ray powder diffraction, TEM, N-2 physisorption, FTIR spectroscopy of adsorbed pyridine TG analysis and XPS spectroscopy. The catalytic performance of nanosized ZrO2 catalysts and their sulfated modifications was studied in levulinic acid esterification with ethanol. The sulfate group's dispersion was predetermined by the use of template during the mesoporous zirconia synthesis. A relation between sulfate groups leaching and the applied synthesis conditions (with or without template) of the zirconia nanoparticles was found. Sulfated materials showed significantly higher activity compared to nonsulfated ones. Furthermore, it has been found that the presence of template during the mesoporous ZrO2 nanoparticles preparation influences significantly the zirconia phase and catalytic performance in levulinic acid esterification.
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收藏
页码：55 / 67
页数：13
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