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MoO3 supported on ordered mesoporous zirconium oxophosphate: An efficient and reusability solid acid catalyst for alkylation and esterification
Molecular Catalysis ( IF 4.6 ) Pub Date : 2017-10-27 , DOI: 10.1016/j.mcat.2017.10.028
Zhichao Miao , Zhenbin Li , Jinping Zhao , Weijiang Si , Jin Zhou , Shuping Zhuo

A series of molybdenum oxide supported on ordered mesoporous zirconium oxophosphate (MoO3/M-ZrPO) materials with different MoO3 loadings (0–20 wt%) and calcination temperatures (500–900 °C) have been designed, synthesized and employed as solid acid catalysts in alkylation and esterification. The XRD, TG-DSC, H2-TPR, N2-physisorption and TEM characterizations were taken to investigate the structural properties and states of introduced MoO3 species. The influence of MoO3 loadings and calcination temperatures in catalytic performance was detailedly investigated and optimal catalytic activity was reached at 10 wt% MoO3 loadings and treated at 700 °C. Moreover, MoO3/M-ZrPO catalysts exhibited outstanding catalytic performance in Friedel-Crafts alkylation of different aromatic compounds and esterification of levulinic acid with 1-butanol. Furthermore, it was noteworthy that the catalyst had superior reusability and no noticeable declines were observed in catalytic performance even after seven runs.



中文翻译:

MoO 3负载在有序介孔氧代磷酸锆上:一种高效且可重复使用的固体酸催化剂,用于烷基化和酯化

设计,合成和使用了一系列负载在有序中孔含氧磷酸锆(MoO 3 / M-ZrPO)材料上的氧化钼,这些材料具有不同的MoO 3负载量(0–20 wt%)和煅烧温度(500–900°C)。固体酸催化剂的烷基化和酯化反应。通过XRD,TG-DSC,H 2 -TPR ,N 2-物理吸附和TEM表征研究了引入的MoO 3的结构性质和状态。详细研究了MoO 3的负载量和煅烧温度对催化性能的影响,并在10 wt%MoO 3的条件下达到了最佳的催化活性。负载并在700°C下处理。此外,MoO 3 / M-ZrPO催化剂在不同芳族化合物的Friedel-Crafts烷基化反应和乙酰丁酸与1-丁醇的酯化反应中表现出出色的催化性能。此外,值得注意的是,该催化剂具有优异的可重复使用性,即使经过七次运行也未观察到催化性能的明显下降。

更新日期:2017-10-27
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