One-pot synthesis of TMOS from SiO2-enriched minerals and supercritical MeOH in a flow reactor

Kozhevnikov, Ivan V.; Chibiryaev, A. M.; Martyanov, Oleg N.

doi:10.1016/j.cej.2021.131871

Cited by 9 publications

(3 citation statements)

References 47 publications

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“…system, though the synthesis of alkoxysilanes from SiO 2 has been reported, where both strong alkali and dehydrating agents were added in the synthesis process. [17,[39][40][41] Thus, the reactions that occurred in the present reaction system were different from those in the reported ones. In addition, SiÀ OÀ Si species in HCGB, ACGB, HCAK, ACAK, and KL were decreased compared to RS and LFRS, and the TEOS yields were also lower than those from RS and LFRS.…”

Section: Sem Analysiscontrasting

confidence: 83%

“…The low TEOS yield from KL indicated that fully SiO x species were not conducive to TEOS generation. This implied that generating TEOS from SiO 2 was not possible in this reaction system, though the synthesis of alkoxysilanes from SiO 2 has been reported, where both strong alkali and dehydrating agents were added in the synthesis process [17,39–41] . Thus, the reactions that occurred in the present reaction system were different from those in the reported ones.…”

Section: Resultsmentioning

confidence: 55%

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Influence of Different Treatments on the Structure and Conversion of Silicon Species in Rice Straw to Tetraethyl Orthosilicate (TEOS)

Sun

Feng

et al. 2023

ChemistryOpen

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The production of tetraethyl orthosilicate (TEOS) from biomass provides a new way for TEOS production and biomass valorization. In this study, rice straw was treated using different fractionation methods, and the content, state, and reactivity of Si in the treated samples were investigated. It was found that acid treatment and ethanol extraction kept most Si in the biomass, while alkali treatment caused significant Si loss. Si was mainly present in the SiOx, Si−O−C, and Si−O−Si states in the surface of raw rice straw, cellulose and Klason lignin. The results showed that the Si−O−Si state in rice straw was beneficial for the formation of TEOS. The removal of lipids from rice straw facilitated the production of TEOS, giving the highest TEOS yield of 76.2 %. In contrast, the production of TEOS from other samples became difficult; the simultaneous conversion of the three organic components of rice straw also facilitated the production of TEOS.

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Section: Sem Analysiscontrasting

confidence: 83%

Section: Resultsmentioning

confidence: 55%

Influence of Different Treatments on the Structure and Conversion of Silicon Species in Rice Straw to Tetraethyl Orthosilicate (TEOS)

Sun

Feng

et al. 2023

ChemistryOpen

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“…According to Fig. 1, which depicts the structures of both silicates, TEOS is often preferred over TMOS since it only yields ethanol when hydrolyzed whereas TMOS releases hazardous methanol [5]. For usage as a mixing agent, tetraethyl orthosilicate (TEOS) is chosen due to its reactivity and well-known chemical characteristics [6].…”

Section: Wpływ Teos Na Właściwości Reologiczne Polifluorku Winylidenu...mentioning

confidence: 99%

Effect of TEOS on the rheological properties of polyvinylidene fluoride and poly(vinylidene fluoride-co-hexafluoropropylene)

Abid,

Gzara,

Moujdin

et al. 2024

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The influence of TEOS on the rheological properties of PVDF and poly(vinylidene fluoride-co-hexafluoropropylene) was investigated. The addition of TEOS to low molecular weight PVDF results in pseudoplastic behavior. The exception is PVDF containing 5 wt%. TEOS, which shows dilation behavior. Similar behavior has high molecular weight PVDF with the addition of 2 wt.% TEOS and low molecular weight copolymer with and without TEOS. The influence of temperature on the viscosity and activation energy of the tested PVDF solutions and the influence of TEOS on the average molecular weight were also examined.

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High-loaded Ni-based catalysts obtained via supercritical antisolvent coprecipitation in transfer hydrogenation of anisole: Influence of the support

Philippov

Nesterov

Pakharukova

et al. 2022

Applied Catalysis A: General

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One-pot synthesis of TMOS from SiO2-enriched minerals and supercritical MeOH in a flow reactor

Cited by 9 publications

References 47 publications

Influence of Different Treatments on the Structure and Conversion of Silicon Species in Rice Straw to Tetraethyl Orthosilicate (TEOS)

Influence of Different Treatments on the Structure and Conversion of Silicon Species in Rice Straw to Tetraethyl Orthosilicate (TEOS)

Effect of TEOS on the rheological properties of polyvinylidene fluoride and poly(vinylidene fluoride-co-hexafluoropropylene)

High-loaded Ni-based catalysts obtained via supercritical antisolvent coprecipitation in transfer hydrogenation of anisole: Influence of the support

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