• Thèse

Use of unconventional activation methods for the oxidative cleavage of lignin by dioxygen, Utilisation de moyens d’activation non-conventionnels pour le clivage oxydant de la lignine par le dioxygène

Louay Al-Hussaini

Due to the depletion of fossil resources, the interest of lignin as a sustainable alternative to petroleum is growing. Thus, the main purpose of this thesis was to develop a process for oxidative cleavage of lignin by dioxygen that involves unconventional methodologies like sonochemistry and ball-…, Du fait de l'épuisement des ressources fossiles, l'intérêt de la lignine en tant qu'alternative durable est grandissant. Ainsi, le but principal de cette thèse était de mettre au point un procédé de clivage oxydant de la lignine par le dioxygène qui implique des voies non…

Other. Sorbonne Université, 2019. English. ⟨NNT : 2019SORUS448⟩. ⟨tel-03463302⟩

• Article dans une revue

Selective gas phase hydrogenation of nitroarenes over Mo 2 C-supported Au-Pd

Xiaodong Wang, Noémie Perret, Laurent Delannoy, Catherine Louis, Mark A. Keane

We report the first synthesis of Mo2C-supported Au and Au–Pd catalysts (nominal Au/Pd = 10 and 30) obtained from colloidal nanoparticles stabilised by polyvinyl alcohol (PVA). Equivalent Au/Al2O3 and Au–Pd/Al2O3 were prepared and served as benchmarks. Residual PVA was removed by thermal treatment…

Catalysis Science & Technology, 2016, 6 (18), pp.6932 - 6941. ⟨10.1039/C6CY00514D⟩. ⟨hal-01548023⟩

• Article dans une revue

Ordered Nanostructures on a Hydroxylated Aluminum Surface through the Self-Assembly of Fatty Acids.

Irma Liascukiene, Nesrine Aissaoui, Svajus J. Asadauskas, Jessem Landoulsi, Jean-François Lambert

We investigate the mechanism of self-assembly of fatty acids (FA) and methyl oleate on an Al oxy-hydroxide surface with a view to deciphering the role and nature of interfacial processes (adsorption, chemical binding, molecular organization, etc.). For this purpose, we focus on parameters related…

Langmuir, 2012, 28, pp.5116-5124. ⟨10.1021/la2051542⟩. ⟨hal-00688636⟩

• Article dans une revue

Chromium Oxide Species Supported on Silica: A Representative Periodic DFT Model

Hazar Guesmi, Frederik Tielens

The Cr/SiO2 system is investigated using periodic DFT. The model represents the amorphous character of the silica surface and allows the investigation of the effect of hydration on the Cr(VI) monomers. First, the geometry and energetics are discussed and compared with experimental data. The phase…

Journal of Physical Chemistry C, 2011, 116, pp.994-1001. ⟨10.1021/jp209680r⟩. ⟨hal-00690824⟩

• Article dans une revue

Hexacyano Ferrate (III) Reduction by Electron Transfer Induced by Plasmonic Catalysis on Gold Nanoparticles

Iyad Sarhid, Isabelle Lampre, Diana Dragoe, Patricia Beaunier, Bruno Palpant, Hynd Remita

Materials, 2019, 12 (18), pp.3012. ⟨10.3390/ma12183012⟩. ⟨hal-02316679⟩

• Article dans une revue

CO 2 methanation over LDH derived NiMgAl and NiMgAlFe oxides: Improving activity at lower temperatures via an ultrasound-assisted preparation

Michel Obeid, Christophe Poupin, Madona Labaki, Samer Aouad, Sharad Gupta, Haingomalala Lucette Tidahy, Aida Younis, Ferdaous Ben Romdhane, Eric Gaigneaux, Josefine Schnee, Edmond Abi-Aad, François Delattre

Within the idea to catalyze CO 2 methanation NiMgAl and NiMgAlFe oxides were synthesized by the layered double hydroxide route using co-precipitation and ultrasound-assisted co-precipitation. MgAl and MgAlFe oxides-supported Ni materials prepared by the impregnation method were used as references.…

Chemical Engineering Journal, 2023, 474, pp.145460. ⟨10.1016/j.cej.2023.145460⟩. ⟨hal-04212860⟩

• Thèse

Catalysis assisted by plasmon, Catalyse assistée par plasmon

Iyad Sarhid

Metallic nanoparticles (NPs) have many applications in catalysis. Some of them (gold, silver, copper) have a visible absorption resulting from the excitation of the surface plasmon by an external electromagnetic field. In this project, we propose to couple the catalytic properties of gold-based…, Les nanoparticules (NPs) métalliques ont de nombreuses applications en catalyse. Certaines d’entre elles (or, argent, cuivre) présentent une absorption dans le visible résultant de l’excitation du plasmon de surface par un champ électromagnétique extérieur. Nous proposons dans ce projet de coupler…

Catalysis. Université Paris Saclay (COmUE), 2019. English. ⟨NNT : 2019SACLS227⟩. ⟨tel-02724739⟩

• Article dans une revue

Effect of the order of Ni and Ce addition in SBA-15 on the activity in dry reforming of methane, Effet de l'ordre d'ajout du Ni et du Ce dans SBA-15 sur l'activité en reformage à sec du methane

Marie-Nour Kaydouh, Nissrine El Hassan, Anne Davidson, Sandra Casale, Pascale Massiani

Dry reforming of methane has been carried out on SBA-15 catalysts containing 5 wt% Ni and 6 wt% Ce. The effect of the order of Ni and Ce impregnation on the catalytic activity has been studied. Both metals were added using the “two-solvent” method that favors metal dispersion inside the pores.…

Comptes Rendus. Chimie, 2015, 18 (3), pp.293-301. ⟨10.1016/j.crci.2015.01.004⟩. ⟨hal-01121889⟩

• Communication dans un congrès

Catalyseurs Ni/Al2O3: de la synthèse à partir de précurseurs nickel-éthylènediamine à l'étude sous mélange CO/H2

Fabien Négrier, Eric Marceau, Michel Che, Jean-Marc Giraudon, Axel Löfberg, Lucien Leclercq

Gecat 2005, 2005, La Rochelle, France. ⟨hal-00082987⟩

• Thèse

Comportement en corrosion d'un acier austénitique enrichi en silicium en milieu acide nitrique sous flux thermique, Corrosion behavior of a silicon-rich stainless steel in nitric acid media under heat transfer

Inès Bahtit

Ce travail de thèse traite du comportement en corrosion de l’acier austénitique enrichi en Si (acier 1.4361) dans un milieu 2,5 mol L-1 HNO3 + 2,5 mol L-1 NaNO3 en fonction de la température et s’inscrit dans un cadre d’étude sur le vieillissement des matériaux constitutifs des installations de l’…, This thesis deals with the corrosion behavior of Si-enriched austenitic steel (stainless steel 1.4361) in a 2.5 mol L-1 HNO3 + 2.5 mol L-1 NaNO3 medium as a function of temperature and contributes to studies on the aging of materials used in the La Hague plant. The temperature range studied extends…

Chimie analytique. Sorbonne Université, 2023. Français. ⟨NNT : 2023SORUS057⟩. ⟨tel-04081948⟩