Selective Crystallization of AlPO4-41 Molecular Sieve in the Presence of Diethylamine

Аглиуллин, М. Р.; Кутепов, Б. И.

doi:10.1134/s0965544120080022

Cited by 3 publications

(1 citation statement)

References 17 publications

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“…At 10 h, the small amorphous solids disappeared, and the SAPO-5 crystals grew further (mean size: 650 nm), as confirmed by the FESEM and PSD studies (Figure 2A(c),B(c)). Successive phase transformation of SAPO-5 into SAPO-41 was also observed in SH5 after 14 h of heating where larger secondary particles made by agglomerated primary crystals of SAPO-5 and SAPO-41 (both in hexagonal prism shape [18,19]) were detected (Figure 2A(d),B(d)).…”

Section: Effect Of Crystallization Timementioning

confidence: 76%

Effects of Synthesis Parameters on the Crystallization Profile and Morphological Properties of SAPO-5 Templated by 1-Benzyl-2,3-Dimethylimidazolium Hydroxide

et al. 2021

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The formation of SAPO-5 molecular sieves is studied under hydrothermal conditions in the presence of a new templating agent, 1-benzyl-2,3-dimethylimidazolium hydroxide ([bzmIm]OH). The syntheses were carried out by varying the synthesis parameters, viz. crystallization temperature, heating time and reactants molar composition (SiO2, Al2O3, P2O5, [bzmIm]+, H2O) in order to investigate the role of each synthesis parameter on the formation of SAPO-5. The results showed that these synthesis parameters had significant influences on the entire crystallization process (induction, nucleation, crystal growth, and Ostwald ripening) and physicochemical properties of SAPO-5 (morphology and crystal size). Moreover, this study also demonstrated a fast hydrothermal synthesis approach where a SAPO-5 molecular sieve with hexagonal prism morphology could be crystallized within 10 h instead of days using a novel [bzmIm]OH heterocyclic template, thus offering an alternative route for synthesizing zeolite-like materials for advanced applications.

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Section: Effect Of Crystallization Timementioning

confidence: 76%