High-Yield Synthesis of Ethyl Lactate with Mesoporous Tin Silicate Catalysts Prepared by an Aerosol-Assisted Sol–Gel Process

Nicolas Godard, Alvise Vivian, Luca Fusaro, Lorenzo Cannavicci, Carmela Aprile, Damien P. Debecker

Résultats de recherche: Contribution à un journal/une revueArticle

Résumé

An aerosol-assisted sol–gel method is used to prepare mesoporous tin silicate catalysts that exhibit a record activity in the synthesis of ethyl lactate from dihydroxyacetone and ethanol. The method is based on the formation of an aerosol from a solution of precursors and surfactant. During the fast drying of the droplets, the surfactant self-assembles and the Sn-silica matrix is formed by polycondensation reactions. After calcination, the resulting material is composed of a true tin-silicon mixed oxide in the form of spherical microparticles with calibrated mesopores of 5–6 nm. Sn species are incorporated in the silica network, mainly in the form of single sites. This makes these catalysts highly active for the targeted reaction, as shown by record turnover numbers. The catalyst is recyclable and truly heterogeneous as it can be reused for several cycles and it does not leach.
langue originaleAnglais
Pages (de - à)2211-2218
Nombre de pages8
journalChemCatChem
Volume9
Numéro de publication12
Les DOIs
étatPublié - 22 juin 2017

Empreinte digitale

Silicates
lactates
Tin
Aerosols
silicates
tin
aerosols
catalysts
Surface-Active Agents
Silicon Dioxide
Catalysts
Surface active agents
synthesis
surfactants
Dihydroxyacetone
Silica
silicon dioxide
microparticles
mixed oxides
Silicon

Citer ceci

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abstract = "An aerosol-assisted sol–gel method is used to prepare mesoporous tin silicate catalysts that exhibit a record activity in the synthesis of ethyl lactate from dihydroxyacetone and ethanol. The method is based on the formation of an aerosol from a solution of precursors and surfactant. During the fast drying of the droplets, the surfactant self-assembles and the Sn-silica matrix is formed by polycondensation reactions. After calcination, the resulting material is composed of a true tin-silicon mixed oxide in the form of spherical microparticles with calibrated mesopores of 5–6 nm. Sn species are incorporated in the silica network, mainly in the form of single sites. This makes these catalysts highly active for the targeted reaction, as shown by record turnover numbers. The catalyst is recyclable and truly heterogeneous as it can be reused for several cycles and it does not leach.",
keywords = "heterogeneous catalysis, silicon, sol–gel processes, tin, waste prevention, silicon, heterogeneous catalysis, sol–gel processes, tin, waste prevention",
author = "Nicolas Godard and Alvise Vivian and Luca Fusaro and Lorenzo Cannavicci and Carmela Aprile and Debecker, {Damien P.}",
year = "2017",
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High-Yield Synthesis of Ethyl Lactate with Mesoporous Tin Silicate Catalysts Prepared by an Aerosol-Assisted Sol–Gel Process. / Godard, Nicolas; Vivian, Alvise; Fusaro, Luca; Cannavicci, Lorenzo; Aprile, Carmela; Debecker, Damien P.

Dans: ChemCatChem, Vol 9, Numéro 12, 22.06.2017, p. 2211-2218.

Résultats de recherche: Contribution à un journal/une revueArticle

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AU - Godard, Nicolas

AU - Vivian, Alvise

AU - Fusaro, Luca

AU - Cannavicci, Lorenzo

AU - Aprile, Carmela

AU - Debecker, Damien P.

PY - 2017/6/22

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AB - An aerosol-assisted sol–gel method is used to prepare mesoporous tin silicate catalysts that exhibit a record activity in the synthesis of ethyl lactate from dihydroxyacetone and ethanol. The method is based on the formation of an aerosol from a solution of precursors and surfactant. During the fast drying of the droplets, the surfactant self-assembles and the Sn-silica matrix is formed by polycondensation reactions. After calcination, the resulting material is composed of a true tin-silicon mixed oxide in the form of spherical microparticles with calibrated mesopores of 5–6 nm. Sn species are incorporated in the silica network, mainly in the form of single sites. This makes these catalysts highly active for the targeted reaction, as shown by record turnover numbers. The catalyst is recyclable and truly heterogeneous as it can be reused for several cycles and it does not leach.

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