One-step non-hydrolytic sol–gel preparation of efficient V2O5-TiO2 catalysts for VOC total oxidation

Debecker, Damien P.; Bouchmella, Karim; Delaigle, Romain; Eloy, Pierre; Poleunis, Claude; Bertrand, Patrick; Gaigneaux, Éric M.; Mutin, P. Hubert

doi:10.1016/j.apcatb.2009.10.018

Cited by 74 publications

(44 citation statements)

References 42 publications

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“…While the Re species in as-prepared samples are homogeneously dispersed in the bulk, the calcined xerogels exhibit an increase of the surface Re/(Re + Si + Al) atomic ratio corresponding to migration of Re to the surface upon thermal treatment (Figure 6). Similar behavior was previously reported for vanadium, molybdenum, and tungsten in Ti-O-V, Ti-O-V-O-Mo, Ti-O-V-O-W, and Si-O-Al-O-Mo mixed oxide catalysts prepared by NHSG and was explained by a low Tammann temperature of the respective metal oxides allowing for their migration at increased temperatures [179][180][181].…”

Section: New Compositionssupporting

confidence: 66%

“…The incorporation of Mo and W into catalysts showed promoting effects and increased their efficiency. For example the total oxidation of chlorobenzene reached 93% conversion after 150 min at 300 • C. NHSG derived VOC total oxidation catalysts reported by Debecker et al [179,181] exhibit a comparable activity to the catalysts prepared by impregnation method on TiO 2 supports [226]. Another class of materials studied by the same group were catalysts for olefin metathesis.…”

Section: Heterogeneous Catalystsmentioning

confidence: 99%

“…Decomposition of these pollutants, represented mostly by chlorinated aromatics, can be catalyzed by so-called total oxidation catalysts. These were prepared by the group of Debecker and were based on MoO 3 -and WO 3 -V 2 O 5 -TiO 2 oxides [179,181]. The authors reported high conversions of benzene and chlorobenzene especially in the case of samples with 10 wt % V 2 O 5 loadings.…”

Section: Heterogeneous Catalystsmentioning

confidence: 99%

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The Power of Non-Hydrolytic Sol-Gel Chemistry: A Review

et al. 2017

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This review is devoted to non-hydrolytic sol-gel chemistry. During the last 25 years, non-hydrolytic sol-gel (NHSG) techniques were found to be attractive and versatile methods for the preparation of oxide materials. Compared to conventional hydrolytic approaches, the NHSG route allows reaction control at the atomic scale resulting in homogeneous and well defined products. Due to these features and the ability to design specific materials, the products of NHSG reactions have been used in many fields of application. The aim of this review is to present an overview of NHSG research in recent years with an emphasis on the syntheses of mixed oxides, silicates and phosphates. The first part of the review highlights well known condensation reactions with some deeper insights into their mechanism and also presents novel condensation reactions established in NHSG chemistry in recent years. In the second section we discuss porosity control and novel compositions of selected materials. In the last part, the applications of NHSG derived materials as heterogeneous catalysts and supports, luminescent materials and electrode materials in Li-ion batteries are described.

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Section: New Compositionssupporting

confidence: 66%

Section: Heterogeneous Catalystsmentioning

confidence: 99%

Section: Heterogeneous Catalystsmentioning

confidence: 99%

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The Power of Non-Hydrolytic Sol-Gel Chemistry: A Review

et al. 2017

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“…[42] The Raman spectra of the different samples are displayed in Figure 10. All the spectra show the A 1g (630 cm -1 ) and B 2g (770 cm -1 ) modes typical of the tetragonal structure of cassiterite.…”

Section: Resultsmentioning

confidence: 99%

“…Although the ether route has proved highly successful in the synthesis of mesoporous mixed-oxide catalysts, [42][43][44] it has not been used to prepare oxide nanoparticles.…”

Section: Introductionmentioning

confidence: 99%

Reactive and Organosoluble SnO₂ Nanoparticles by a Surfactant‐Free Non‐Hydrolytic Sol–Gel Route

2011

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Reactive SnO2 nanoparticles have been successfully prepared by a simple non‐hydrolytic sol–gel synthesis in CH2Cl2 at 110 °C by using SnCl4 as a precursor and diisopropyl ether (iPr2O) as an oxygen donor. The SnO2 nanocrystals, with a diameter of about 4 nm, formed stable sols in organic aprotic solvents in the absence of any surfactant or coordinating agent. The lack of aggregation has been attributed to the presence of Cl and OiPr surface groups instead of OH groups. These surface groups render the nanoparticles reactive towards hydroxylated surfaces, as shown by their reaction with an oxidized silicon wafer; the nanoparticles bind uniformly across the wafer to form a monolayer.

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Low Energy Ion Scattering and Secondary Ion Mass Spectrometry

Kruse

Chenakin

2012

Characterization of Solid Materials and Heterogeneous Catalysts

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One-step non-hydrolytic sol–gel preparation of efficient V2O5-TiO2 catalysts for VOC total oxidation

Cited by 74 publications

References 42 publications

The Power of Non-Hydrolytic Sol-Gel Chemistry: A Review

The Power of Non-Hydrolytic Sol-Gel Chemistry: A Review

Reactive and Organosoluble SnO₂ Nanoparticles by a Surfactant‐Free Non‐Hydrolytic Sol–Gel Route

Low Energy Ion Scattering and Secondary Ion Mass Spectrometry

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One-step non-hydrolytic sol–gel preparation of efficient V2O5-TiO2 catalysts for VOC total oxidation

Cited by 74 publications

References 42 publications

The Power of Non-Hydrolytic Sol-Gel Chemistry: A Review

The Power of Non-Hydrolytic Sol-Gel Chemistry: A Review

Reactive and Organosoluble SnO2 Nanoparticles by a Surfactant‐Free Non‐Hydrolytic Sol–Gel Route

Low Energy Ion Scattering and Secondary Ion Mass Spectrometry

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Product

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Reactive and Organosoluble SnO₂ Nanoparticles by a Surfactant‐Free Non‐Hydrolytic Sol–Gel Route