Disordered mesoporous KIT-1 synthesized by DABCO-based ionic liquid and its characterization

Sanaeishoar, Haleh; Sabbaghan, Maryam; Mohave, Fouad; Nazarpour, Roya

doi:10.1016/j.micromeso.2016.04.003

Cited by 14 publications

(9 citation statements)

References 20 publications

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“…Only using IL-C 16 with steric hindrance in cationic center lead to micelles formation that doesn't have good interaction with silicate polyanion in the polymerization process. In continuing our previous researches, [6,16] three cationic ILs based on DABCO with different chain length were applied as co-templates along with CTAB to produce micro-mesoporous silica materials. The using IL-C 4 as co-template, showed good impact to prepare MCM-41 with higher interconnection network than using just CTAB [6].…”

Section: Resultsmentioning

confidence: 94%

“…The sharp in ection p/p 0 in the isotherm K-2 indicates the narrow uniform mesoporous distribution in comparing with K-1 (Fig. SD. 3) [16].…”

Section: Resultsmentioning

confidence: 99%

“…The using IL-C 4 as co-template, showed good impact to prepare MCM-41 with higher interconnection network than using just CTAB [6]. The IL-C 12 with the same molecular weight with CTAB in causes to form the KIT-1 micro-mesoporous system [16]. The IL-C 16 with the similar to CTAB structure in the length of the alkyl side chain led to producing the micro-mesoporous MCM-41 with more order structure than comparison with only using CTAB (the present work).…”

Section: Resultsmentioning

confidence: 99%

“…M-2 and K-2 were prepared based on our previous work [16]. The small-angle XRD patterns of the products are shown in Fig.…”

Section: Preparation Of M-2 and K-2mentioning

confidence: 99%

“…In connection with our interest in in uence of different ILs as co-template in micro-mesoporous MCM-41 structure and disordered mesoporous material KIT-1, we report here the results of a study on the new IL, hexyldecyl-4-aza-1-azaniabicyclo[2.2.2]octane (IL-C 16 , Scheme 1) with similar structure with CTAB as dual template (M-1) and absence of CTAB (K-1) [6,16]. Also, the results were compared with M-2 as blank sample and K-2 materials from our previous article [16]. In preparation of M-2 was used only CTAB as template and K-2 was used dual template CTAB and dodecyl-4-aza-1-azaniabicyclo[2.…”

Section: Introductionmentioning

confidence: 99%

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Manufacture Porous Materials by Dabco-Based Lonic Liquid

Sanaeishoar

Sabbaghan

Peimanfar

2021

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The long-chain ionic liquid (IL) hexadecyl-4-aza-1-azoniabicyclo[2.2.2]octane bromide was used as a template to prepare the hexagonally ordered siliceous mesoporous molecular sieve MCM-41 as well as the disordered mesoporous molecular sieve designated as KIT-1. The synthesized products were studied via X-ray diffraction (XRD), Fourier transform infrared (FTIR) and N2 adsorption-desorption analysis. The surface area (BET), pore volume, and pore diameter (BJH) are determined. These kind of ILs that have DABCO (1,4-diazabicyclo[2.2.2]octane) in their structures, were prepared with an easy method. When the two templates, cetyltrimethylammonium bromide (CTAB) and IL, have the similar structures, MCM-41 mesoporous molecular sieve produced with more ordered, uniform mesoporous channel and high surface area in comparison to without IL. When just IL used instead of CTAB, the KIT-1 with non-uniform mesoporous was obtained. Here we prepared the KIT-1 mesoporous molecular sieve with IL without CTAB but it seems, using dual template with changing IL structures in fabricated of molecular sieve provide new opportunity to design targeted adsorbents and catalysis.

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Section: Resultsmentioning

confidence: 94%

“…The sharp in ection p/p 0 in the isotherm K-2 indicates the narrow uniform mesoporous distribution in comparing with K-1 (Fig. SD. 3) [16].…”

Section: Resultsmentioning

confidence: 99%