Výsledky vyhledávání - "Josefine Schnee"

Unraveling the Direct Decomposition of NOx over Keggin Heteropolyacids and Their Deactivation Using a Combination of Gas-IR/MS and In Situ DRIFT Spectroscopy

Autor: Josefine Schnee, Laurent Delannoy, Guylène Costentin, Cyril Thomas

Publikováno v: Journal of Physical Chemistry C
Journal of Physical Chemistry C, American Chemical Society, In press, ⟨10.1021/acs.jpcc.0c05945⟩

International audience; Keggin heteropolyacids (HPAs) have been known to be efficient NOx absorbers for many years, and to decompose a significant fraction of the NOx species pre-absorbed at 100-150 °C into harmless N2 and O2 upon rapid heating to 4

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fb8bf60ff60bcb36f29513739b3818df
https://doi.org/10.1021/acs.jpcc.0c05945

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Time-resolved infrared absorption spectroscopy applied to photoinduced reactions: how and why

Autor: Alberto Mezzetti, Josefine Schnee, Andrea Lapini, Mariangela Di Donato

Publikováno v: Photochemical & photobiological sciences
(2022): 1–28. doi:10.1007/s43630-022-00180-9
info:cnr-pdr/source/autori:Mezzetti A.; Schnee J.; Lapini A.; Di Donato M./titolo:Time-resolved infrared absorption spectroscopy applied to photoinduced reactions: how and why/doi:10.1007%2Fs43630-022-00180-9/rivista:Photochemical & photobiological sciences (Print)/anno:2022/pagina_da:1/pagina_a:28/intervallo_pagine:1–28/volume

Time-resolved infrared (IR) spectroscopy is a widely used technique in the investigation of photoinduced reactions, given its capabilities of providing structural information about the presence of intermediates and the reaction mechanism. Despite the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7bcb7fe3ba7e8cff71f76f7d4bf855b4
https://pubmed.ncbi.nlm.nih.gov/35446008

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Assessing the dispersion of supported H3PW12O40 catalysts: No longer a hurdle thanks to in situ IR upon pyridine adsorption

Autor: Alexandre Vimont, Eric M. Gaigneaux, Josefine Schnee, François Devred

Publikováno v: Applied Catalysis A : General
Applied Catalysis A : General, 2019, 578, pp.116-121. ⟨10.1016/j.apcata.2019.03.022⟩⟩
Applied Catalysis A: General, Vol. 578, p. 116-121 (2019)
Applied Catalysis A : General, Elsevier, 2019, 578, pp.116-121. ⟨10.1016/j.apcata.2019.03.022⟩⟩

Pyridine is since a long time used as an infrared (IR) molecular probe to characterize the acidity of solids, in particular of heteropolyacids (HPAs). The latter are metal-oxygen-clusters nowadays widely used in acid catalysis. Indeed, thanks to thei

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::87db0629b1156632ec71295ed3f4364f
https://doi.org/10.1016/j.apcata.2019.03.022

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Coupling a Rapid-Scan FT-IR Spectrometer with Quantum Cascade Lasers within a Single Setup: An Easy Way to Reach Microsecond Time Resolution without Losing Spectral Information

Autor: Frédéric Grisch, Bruno J. Beccard, Philippe Bazin, Benoît Barviau, Josefine Schnee, Marco Daturi

Publikováno v: Analytical Chemistry
Analytical Chemistry, American Chemical Society, 2019, 91 (7), pp.4368-4373. ⟨10.1021/acs.analchem.8b04621⟩

For the first time, a standard rapid-scan Fourier-transform infrared (FT-IR) spectrometer was coupled with quantum cascade lasers (QCLs) tunable within the 1876–905 cm–1 spectral range, within one single setup, by keeping one single sample compar

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fdb8142f9ac42cd2795fffbd33b0277b
https://doi.org/10.1021/acs.analchem.8b04621

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Correction to: Time-resolved infrared absorption spectroscopy applied to photoinduced reactions: how and why

Autor: Alberto Mezzetti, Josefine Schnee, Andrea Lapini, Mariangela Di Donato

Publikováno v: Photochemical & Photobiological Sciences. 21:609-609

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::49c1eff1c1cefe3c6cf7b4b35e95cbb4
https://doi.org/10.1007/s43630-022-00208-0

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Ultrafast time-resolved quantum cascade laser diagnostic for enlightening the role of surface formate species in the photocatalytic oxidation of methanol

Autor: Marco Daturi, Josefine Schnee, Mohamad El-Roz

Publikováno v: Catalysis Science & Technology
Catalysis Science & Technology, Royal Society of Chemistry, 2020, 10 (16), pp.5618-5627. ⟨10.1039/D0CY00865F⟩
Catalysis Science & Technology, Royal Society of Chemistry, 2020, 10 (16), pp.5618-5627. ⟨10.1039/d0cy00865f⟩

International audience; In the present work, a new quantum cascade laser (QCL)-assisted operando FT-IR setup was used to get direct insight into the relationship between the overall catalytic performance of TiO2 photocatalysts in the gas phase photoo

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::66cc4316177a85d8b240569b6357e3c5
https://hal.sorbonne-universite.fr/hal-03013711

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Comment on 'Direct Decomposition of NO x over TiO 2 Supported Transition Metal Oxides at Low Temperatures'

Autor: Cyril Thomas, Laurent Delannoy, Guylène Costentin, Josefine Schnee, Frederic Meunier

Publikováno v: Industrial and engineering chemistry research
Industrial and engineering chemistry research, American Chemical Society, 2020, 59, pp.4835-4837. ⟨10.1021/acs.iecr.0c00412⟩

International audience; In a recent paper entitled "Direct decomposition of NO x over TiO 2 supported transition metal oxides at low temperatures", 1 Damma et al. report highly promising results on the catalytic direct decomposition of NO to N 2 and

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3553b6924b7a63e692cd73f113a4650c
https://hal.sorbonne-universite.fr/hal-02504389

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Ammonium-substitution for successfully activating the bulk of Keggin acid salts in 1-butanol dehydration

Autor: François Devred, Josefine Schnee, Boris Junior Takam, Charlotte Lang, Eric M. Gaigneaux

Publikováno v: Catalysis Science & Technology, Vol. 10, p. 6244 (2020)

In 1-butanol dehydration (gas phase) on a Keggin heteropolyacid (HPA) catalyst, the large size of 1-butanol and its significant hydrophobicity make the bulk-type (also called pseudo liquid-type) catalytic mechanism impossible. This drastically limits

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::90bd68ea76f0ca9f8bd795ab607d8571
https://hdl.handle.net/2078.1/232803

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Study of the gas-phase glycerol oxidehydration on systems based on transition metals (Co, Fe, V) and aluminium phosphate

Autor: S. Lopez-Pedrajas, Felipa M. Bautista, Eric M. Gaigneaux, Josefine Schnee, Diego Luna, Rafael Estevez

Publikováno v: Molecular Catalysis, Vol. 455, p. 68-77 (2018)

The gas-phase glycerol (Gly) transformation in the presence of oxygen has been studied on cobalt oxide systems (10 and 20 wt% Co) supported on a synthetic mesoporous aluminium phosphate (AlPO4) calcined at 350 °C, as well as on a binary Co-Al phosph

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::aea1a7d2681ce5513ee58dca5a59929c
https://doi.org/10.1016/j.mcat.2018.05.020

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Raman monitoring of a catalytic system at work: Influence of the reactant on the sensitivity to laser-induced heating

Autor: Josefine Schnee, Eric M. Gaigneaux

Publikováno v: Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy. 173:151-159

Characterizing catalysts under working conditions is crucial to understand and to optimize their behavior and performance. However, when Raman spectroscopy is used, attention has to be paid to laser-induced artefacts. While laser irradiation is often

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::535261d11c6f349f1b2603599c98c132
https://doi.org/10.1016/j.saa.2016.09.005

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