title: Solvent-free syntheses of hierarchically porous aluminophosphate-based zeolites with AEL and AFI structures.
abstract: 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.
authors.affiliation: Department of Chemistry, Zhejiang University, Hangzhou 310028 (P. R. China); Department of Analytical Chemistry, Shaoxing University, Shaoxing 312000 (P. R. China).
authors.forename: Yinying
authors.initials: Y
authors.lastname: Jin
authors.forename: Xian
authors.initials: X
authors.lastname: Chen
authors.forename: Qi
authors.initials: Q
authors.lastname: Sun
authors.forename: Na
authors.initials: N
authors.lastname: Sheng
authors.forename: Yan
authors.initials: Y
authors.lastname: Liu
authors.forename: Chaoqun
authors.initials: C
authors.lastname: Bian
authors.forename: Fang
authors.initials: F
authors.lastname: Chen
authors.forename: Xiangju
authors.initials: X
authors.lastname: Meng
authors.forename: Feng-Shou
authors.initials: FS
authors.lastname: Xiao
keywords: AEL structure; APO-11; aluminophosphate zeolites; heteroatom substitution; solvent-free synthesis