Low-temperature and alkali-free dual template synthesis of micro-mesoporous aluminosilicates based on precursors of zeolite ZSM-5

Barakov, Roman; Shcherban, Nataliya D.; Yaremov, P. S.; Gryn, Svitlana; Solomakha, V. N.; Bezverkhyy, Igor; Kasian, Nataliia; Ilyin, Vladimir G.

doi:10.1007/s10853-015-9719-0

Cited by 27 publications

(7 citation statements)

References 76 publications

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“…In order to synthesize 2MMAS, the pH of a sol-precursor of ZSM-5 zeolite (Si/Al = 50) was adjusted to 11 (from 12.9) using 1.6 M HCl solution. The resulting dual template mixture [TPAOH/(Si + Al) = 0.35, H 2 O/(Si + Al) = 35] was subjected to HTT at 100 °C for 3 days (Table 1) [19].…”

Section: Catalysts Preparationmentioning

confidence: 99%

“…0.80 nm, for Beta zeolite is ca. 0.90 nm c The sum of mesopore and external surface area of ZSM-5 and Beta zeolites Sample Hydrothermal treatment (HTT) V micro •10 -2 (cm 3 /g) V meso (cm 3 /g) D meso (nm) S meso (m 2 /g) S BET (m 2 /g) position of the temperature maximum of NH 3 desorption, the acid sites can be attributed to weak (T max of desorption < 300 °C), medium strength (T max at 300-400 °C) and strong (T max > 400 °C) [19]. Pyridine ad(de)sorption with an IR-spectral control being a common method for the investigation of zeolites and mesoporous molecular sieves (MMS), was applied for the determination of the nature, strength and concentration of acid sites [21].…”

Section: Characterizationmentioning

confidence: 99%

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Furfural Oxidation with Hydrogen Peroxide Over ZSM-5 Based Micro-Mesoporous Aluminosilicates

et al. 2021

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Micro-mesoporous aluminosilicates based on ZSM-5 zeolite, obtained by a dual template method, as well as in the presence of a dual-functional template (i.e. a Gemini-type surfactant), were tested in the oxidation of furfural with hydrogen peroxide. Even substantial changes in acidity and porosity of the catalysts result in minor variations of selectivity towards the desired products. Application of the synthesized zeolite-based materials in the oxidation of furfural with hydrogen peroxide leads to formation of 2(5H)-furanone (yield up to 28.5%) and succinic acid (up to 19.5%) as the main C4 reaction products. The kinetic model developed previously to treat the results for oxidation of furfural over sulfated zirconia was able to describe the data also for micro-mesoporous aluminosilicates. Graphical Abstract

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Section: Catalysts Preparationmentioning

confidence: 99%

Section: Characterizationmentioning

confidence: 99%

Furfural Oxidation with Hydrogen Peroxide Over ZSM-5 Based Micro-Mesoporous Aluminosilicates

et al. 2021

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“…The reaction mixture was subjected to hydrothermal treatment at 100 °C for 48 h (sample 1MMAS) or 144 h (sample 2MMAS). The procedure for preparation of 1MMAS and 2MMAS is given in details in [17]. 3MMAS and 4MMAS were prepared by the steam-assisted method according to [18].…”

Section: Preparation and Characterization Of Catalystsmentioning

confidence: 99%

Prins cyclisation of (–)-isopulegol with benzaldehyde over ZSM-5 based micro-mesoporous catalysts for production of pharmaceuticals

Kholkina

Mäki‐Arvela

Lozachmeuer

et al. 2019

Chinese Journal of Catalysis

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“…And the results showed that aniline monomer could penetrate and polymerize in quasi‐static tubules of the templates ,. However, in most templates, the tubules are 3D . Even if they are 1D, the tubules are usually several hundreds of length‐diameter ratio, only a few can surpass a thousand .…”

Section: Introductionmentioning

confidence: 99%

Conductive Ag‐Based Modification of Hydroxyapatite Microtubule Array and Its Application to Enzyme‐Free Glucose Sensing

et al. 2018

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Plenty of biomineralized hydroxyapatite (BioHAP) matrix microtubules (named dentin tubules) with regular arrangement are inside mammal tooth dentin. Herein, electrically conductive polyaniline (PANI) is applied to modify the microtubule array to assemble a PANI/BioHAP composite through an in-situ polymerization method. On this basis, a sensor (PANI/BioHAP/AgHg) is assembled with PANI/BioHAP and silver amalgam, and further applied to enzyme-free glucose sensing. The inner-wall of the tubules is treated in advance with p-methylbenzene sulfonic acid to alter its hydrophilism into hydrophobicity. The treatment contributes to improve the diffusibility of aniline monomer in the tubules and to form a PANI conductive network on the wall. Meanwhile, a large quantity of active sites on the surface of BioHAP matrix performs both adsorption and concentration to glucose molecules. The special array structure helps to shield undesired electrochemical signals, and also increases the current response of glucose electro-catalytic oxidation.

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Low-temperature and alkali-free dual template synthesis of micro-mesoporous aluminosilicates based on precursors of zeolite ZSM-5

Cited by 27 publications

References 76 publications

Furfural Oxidation with Hydrogen Peroxide Over ZSM-5 Based Micro-Mesoporous Aluminosilicates

Furfural Oxidation with Hydrogen Peroxide Over ZSM-5 Based Micro-Mesoporous Aluminosilicates

Prins cyclisation of (–)-isopulegol with benzaldehyde over ZSM-5 based micro-mesoporous catalysts for production of pharmaceuticals

Conductive Ag‐Based Modification of Hydroxyapatite Microtubule Array and Its Application to Enzyme‐Free Glucose Sensing

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