Výsledky vyhledávání - "Isabelle Clémençon"

Performance and degradation mechanisms of CLC particles produced by industrial methods

Autor: Florent Moreau, Arnold Lambert, Mahdi Yazdanpanah, William Pelletant, Isabelle Clémençon, Stephane Bertholin, Airy Tilland

Publikováno v: Fuel
Fuel, Elsevier, 2018, 216, pp.71-82. ⟨10.1016/j.fuel.2017.11.115⟩

International audience; A promising copper based oxygen carrier produced using industrially-relevant manufacturing equipment has been aged in IFPEN's 10 kW th Chemical Looping Combustion pilot plant. Methane combustion was performed at 900°C for 160

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2b8831f622ad12c8839acbb9298072d2
https://hal-ifp.archives-ouvertes.fr/hal-01844567/document

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Controlled Synthesis and High Oxidation Stability of Cobalt Nanoparticles Encapsulated in Mesoporous Silica using a Modified Stöber Approach and a Pseudomorphic Transformation

Autor: Nelly Batail, Denis Uzio, Isabelle Clémençon, Alexandra Chaumonnot, Christelle Legens

Publikováno v: European Journal of Inorganic Chemistry. 2013:1258-1264

Uniform core@shell cobalt nanoparticles (NPs) embedded into mesoporous silica (Co@m-SiO2) were prepared by a simple two-step procedure. Metallic cobalt NPs stabilized by sodium citrate and a nonionic polymer poly(vinylpyrrolidone) were coated by a ho

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f7ac0fbd48d4f573764dce79dbee5bc0
https://doi.org/10.1002/ejic.201201429

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Innovative low temperature regenerable zinc based mixed oxide sorbents for synthesis gas desulfurization

Autor: Isabelle Clémençon, Arnaud Baudot, Vincent Girard, Christophe Geantet, Florent Moreau, Delphine Bazer-Bachi, David Chiche

Publikováno v: Fuel
Fuel, Elsevier, 2015, 140, pp.453-461. ⟨10.1016/j.fuel.2014.09.090⟩

Zinc oxide-based materials are commonly used for the final desulfurization of synthesis gas in IGCC and Fischer–Tropsch based XTL processes. The formation of large amount of solid waste is the major issue of this process. In-situ oxidative regenera

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6c168b26533c959ae3ef94cb7fc21467
https://hal.archives-ouvertes.fr/hal-01100617

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Simultaneous investigation of the structure and surface of a Co/alumina catalyst during Fischer–Tropsch synthesis : discrimination of various phenomena with beneficial or disadvantageous impact on activity

Autor: Christèle Legens, Fabrice Diehl, Isabelle Clémençon, Philippe Lecour, L. Braconnier, Julien Scalbert

Publikováno v: Catalysis science and Technology
Catalysis science and Technology, Royal Chemical Society of Chemistry, 2015, 5 (8), pp.4193-4201. ⟨10.1039/c5cy00556f⟩

International audience; A system combining XRD and DRIFTS characterization techniques was developed to monitor the structureand the surface of a cobalt catalyst during the Fischer–Tropsch synthesis. In the present study, severalphenomena could be o

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cb83904e33368edb27941c733039ecd9
https://hal.archives-ouvertes.fr/hal-01258817

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An X-ray diffractometer coupled with diffuse reflectance infrared Fourier transform spectroscopy and gas chromatography for in situ and in operando characterization: an innovative analytical laboratory instrument

Autor: Patrick Echegut, Domingos De Sousa Meneses, Henry Pillière, Fabrice Diehl, Isabelle Clémençon, Virginie Moizan, Yves Schuurman, Christèle Legens, L. Braconnier

Publikováno v: Journal of Applied Crystallography
Journal of Applied Crystallography, International Union of Crystallography, 2013, 46, pp.262-266. ⟨10.1107/s0021889812042781⟩

In heterogeneous catalysis, chemical reactions take place at the surface of the material and can be influenced by its structure. To understand better the impact of the material surface and structure on catalytic properties, it is important to charact

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::48fba56991e02ce8daff47945f8c92f4
https://hal.archives-ouvertes.fr/hal-00797940

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How does activation affect the cobalt crystallographic structure? An in situ XRD and magnetic study

Autor: Fabrice Diehl, E. Landrivon, Isabelle Clémençon, Christèle Legens, Yves Schuurman, L. Braconnier

Publikováno v: Catalysis Today
Catalysis Today, Elsevier, 2013, 215, pp.18-23. ⟨10.1016/j.cattod.2013.02.021⟩

INGENIERIE+LBC:ELA:YSC; Fischer-Tropsch synthesis uses cobalt catalysts to convert syngas into linear hydrocarbons. Activation is the key step generating and impacting the active phase and more precisely the crystallographic structure of the metallic

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b39678d4c49a337e4bf38befb9a1ca1d
https://hal.archives-ouvertes.fr/hal-00877325

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Multiple and antagonistic effects of water on intrinsic physical properties of model Fischer–Tropsch cobalt catalysts evidenced by in situ X-ray diffraction

Autor: Isabelle Clémençon, Anne-Lise Taleb, Julien Scalbert, Christèle Legens, Loïc Sorbier, Fabrice Diehl

Publikováno v: Chemical Communications. 50:7866

Direct evidence for cobalt oxidation under water treatment at 230 °C was revealed using in situ XRD, even in the presence of small amounts of H2. Oxidation kinetics was proved to be particle size dependent. The resulting Co3O4 showed a firmly smalle

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2e8a8f34fbc0045737b24bbc3e3334c5
https://doi.org/10.1039/c4cc00947a

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