Influence of Binder on Porous Structure of Zeolite Compositions and Their Catalytic Activity

Kononova, I. E.; Мараева, Е. В.; Скорникова, С. А.; Мошников, В. А.

doi:10.1134/s1087659620020066

Cited by 10 publications

(3 citation statements)

References 9 publications

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“…Zeolites were synthesized at the Irkutsk National Research Technical University. In the previous paper [8], the results of the studying the properties of compositions in the mesopore range are presented; here we will emphasize the analysis of micropores.…”

Section: Methodsmentioning

confidence: 99%

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Overview of sorption analysis capabilities for meso- and microporous zeolites nanomaterials

Tokmeilova

Мараева

2021

Chim.Tech.Acta

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In this paper we consider the main application features of the thermal desorption method of inert gases, implemented on the Sorbi MS (Meta, Russia) device, for the analysis of meso- and microporous materials. Recommendations on the choice of measurement modes for stable operation of the Sorbi MS device are offered (including recommendations on mass, sample preparation mode). The article presents the results of the micropores analysis by the t-plot and Sing method.

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Section: Methodsmentioning

confidence: 99%

“…Replacement of the peptizer (sample 6 in Table 5) led to a slight decrease in the micropores volume in the composition. However, such a replacement results in an increase in the total specific surface area [8] and the total pore volume.…”

Section: The Micropores Volume Determination Of a Series Of Zeolite Compositions By The Sing And T-plot Methodsmentioning

confidence: 99%

Overview of sorption analysis capabilities for meso- and microporous zeolites nanomaterials

Tokmeilova

Мараева

2021

Chim.Tech.Acta

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“…At least one additional, usually larger pore system has to be incorporated into the zeolite crystal or added to the crystal structure in order to create a hierarchical [ 27 , 28 , 29 , 30 ] pore system with the zeolite pores as the main functional component. The interaction of the two pore systems creates a hierarchy [ 31 ].…”

Section: Introductionmentioning

confidence: 99%

Step-By-Step Modeling and Demetallation Experimental Study on the Porous Structure in Zeolites

et al. 2022

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The organization of microporous space in zeolites is discussed. A new step-by-step model is proposed that explains the principles of organizing the hierarchy of microporous space at the stage of assembling zeolites from elements of minimal size: a primary building unit, secondary building units, tertiary building units or building polyhedra, a sodalite cage, and a supercage. To illustrate the stepwise hierarchical porous structure of nanomaterials, the following zeolites with small and large micropores have been selected as the model objects: sodalite (SOD, the maximum diameter of a sphere that can enter the pores is 0.3 nm) and zeolites of type A (LTA, the maximum diameter of a sphere that can enter the pores is 0.41 nm), type X, Y (FAU, the maximum diameter of a sphere that can enter the pores is 0.75 nm), and type BETA (the maximum diameter of a sphere that can enter the pores is 0.67 nm). Two-dimensional and three-dimensional modeling in 3Ds Max software was used. We believe that such an approach will be useful for developing ways to create complex zeolite compositions for specific applications, such as catalysis, where the geometry of the pores determines the size of the molecules entering the voids and computer modeling can play an important predictive role. This work takes a look at specific aspects of using the heat desorption method to study mesoporous materials with a BETA zeolite as an example and presents the results of experimental research into the characteristics of the porous structure of hierarchically structured zeolite materials (specific surface area 180–380 m2/g, external surface area 120–200 m2/g, micropore volume 0.001–0.1 mL/g).

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Synthesis of LTA zeolite beads using alum sludge and silica rich wastes

Rozhkovskaya

Rajapakse

Millar

2021

Advanced Powder Technology

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Influence of Binder on Porous Structure of Zeolite Compositions and Their Catalytic Activity

Cited by 10 publications

References 9 publications

Overview of sorption analysis capabilities for meso- and microporous zeolites nanomaterials

Overview of sorption analysis capabilities for meso- and microporous zeolites nanomaterials

Step-By-Step Modeling and Demetallation Experimental Study on the Porous Structure in Zeolites

Synthesis of LTA zeolite beads using alum sludge and silica rich wastes

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