Solvent-Free Syntheses of Hierarchically Porous Aluminophosphate-Based Zeolites with AEL and AFI Structures

Development of sustainable routes for synthesizing aluminophosphate‐based zeolites are very important because of their wide applications. As a typical sustainable route, solvent‐free synthesis of zeolites not only decreases polluted wastes but also increases product yields. Systematic solvent‐free s...

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Bibliographic Details
Published in:Chemistry : a European journal 2014-12, Vol.20 (52), p.17616-17623
Main Authors: Jin, Yinying, Chen, Xian, Sun, Qi, Sheng, Na, Liu, Yan, Bian, Chaoqun, Chen, Fang, Meng, Xiangju, Xiao, Feng-Shou
Format: Article
Language:English
Subjects:
AEL structure
aluminophosphate zeolites
APO-11
Catalysis
Catalytic oxidation
Chemistry
Crystallinity
Ethylbenzene
heteroatom substitution
Isotherms
Oxidation
solvent-free synthesis
Solvents
Surface area
Sustainability
Zeolites
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Summary:Development of sustainable routes for synthesizing aluminophosphate‐based zeolites are very important because of their wide applications. As a typical sustainable route, solvent‐free synthesis of zeolites not only decreases polluted wastes but also increases product yields. Systematic solvent‐free syntheses of hierarchically porous aluminophosphate‐based zeolites with AEL and AFI structures is presented. XRD patterns and SEM images show that these samples have high crystallinity. N2 sorption isotherm tests show that these samples are hierarchically porous, and their surface areas are comparable with those of corresponding zeolites from hydrothermal route. Chosen as an example, catalytic oxidation of ethylbenzene with O2 shows that cobalt substituted APO‐11 from the solvent‐free route (S‐CoAPO‐11) is more active than conventional CoAPO‐11 from hydrothermal route owing to the sample hierarchical porosity. Hierachically porous aluminophosphate‐based zeolites with AEL and AFI structures have been successfully synthesized by a solvent‐free route. Catalysis tests in the oxidation of ethylbenzene with molecular oxygen show that S‐CoAPO‐11 is more active than conventional CoAPO‐11 from the hydrothermal route.
ISSN:0947-6539
1521-3765
DOI:10.1002/chem.201403890