• 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⟩

• 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⟩

• Thèse

Defects in ZnO nanoparticles obtained by gas-phase syntheses, Défauts dans les nanoparticules de ZnO obtenues par synthèses en phase gazeuse

Miao Zhang

By far, the assignment of defects-related spectroscopic features of zinc oxide is still a matter of great controversy. This is probably due to the variety of possible defects in ZnO as well as to their still uncertain formation energies and positions within the band gap. Uncontrolled measurement…, L’attribution des signatures spectrales liées aux défauts dans l’oxyde de zinc fait encore l’objet de controverses. Ceci est probablement dû à la grande variété de défauts possibles, à l’incertitude de leur niveau d’énergie ainsi que leur énergie de formation dans la bande interdite. De plus, l’…

Chemical Sciences. Sorbone Université; ED, 2017. English. ⟨NNT : ⟩. ⟨tel-03952778⟩

• 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

BEA zeolite modified with iron as effective catalyst for N2O decomposition and selective reduction of NO with ammonia

Pawel Boron, Lucjan Chmielarz, J. Gurgul, K. Łątka, Tetsuya Shishido, J.M. Krafft, Stanislaw Dzwigaj

BEA zeolite is modified by a two-steps postsynthesis method allowing incorporate iron atoms into the zeolite framework. Two series of the zeolite samples with aluminium (FexAlSiBEA) and without aluminium (FexSiBEA), containing various iron content (0.5-4.0 Fe wt.%) are obtained. For low Fe content…

Applied Catalysis B: Environmental, 2013, 138-139, pp.434-445. ⟨10.1016/j.apcatb.2013.03.022⟩. ⟨hal-00911026⟩

• Article dans une revue

From 8-hydroxy-5-sulfoquinoline to new related fluorogenic ligands for complexation of aluminium(III) and gallium(III)

Franck Launay, Valérie Alain-Rizzo, Émilie Destandau, Nathalie Ramos, Ēlisabeth Bardez, Paul Baret, Jean-Louis Pierre

The hexadentate tripodal ligand O-TRENSOX (already known as a siderophore), incorporating three 8-hydroxy-5- sulfoquinoline (8-HQS) subunits, was investigated as a potential Ñuorogenic ligand of Al(III) and Ga(III). For the sake of comparison, every chelation study was also carried out with n-BUSOX…

New Journal of Chemistry, 2001, 25 (10), pp.1269-1280. ⟨10.1039/B103406P⟩. ⟨hal-05184790⟩

• Article dans une revue

2D Monolayer of 1T' Phase of Alloyed WSSe from Colloidal Synthesis

Ashkan Shahmanesh, Davide Romanin, Corentin Dabard, Sang-Soo Chee, Charlie Gréboval, Christophe Methivier, Mathieu G Silly, Julien Chaste, Matthieu Bugnet, Debora Pierucci, Abdelkarim Ouerghi, Matteo Calandra, Emmanuel Lhuillier, Benoit Mahler

We explore the colloidal growth of monolayers of WSSe alloy in their 1T' phase with various Se content. We develop a synthetic procedure leading to reduced aggregation of the flakes. The presence of a narrow band-gap close to the top of the valence band has been evidenced combining…

Journal of Physical Chemistry C, 2021, 125 (20), pp.11058-11065. ⟨10.1021/acs.jpcc.1c02275⟩. ⟨hal-03227064⟩

• Article dans une revue

Acidic Properties of Alkaline-Earth Phosphates Determined by an Experimental-Theoretical Approach

E. Blanco, Q. Gu, J. Couble, L. Martin, T. Onfroy, G. Costentin, Jean-Francois Paul, Carine Michel, S. Loridant

Alkaline-earth phosphates efficient in the dehydration of lactic acid to acrylic acid were previously shown to contain a surface mono/dihydrogen phosphate amorphous layer composed of M2+ cations and both P═O and POH groups. In this work, acidic properties of such a layer were determined combining…

Journal of Physical Chemistry C, 2020, 124 (3), pp.2013-2023. ⟨10.1021/acs.jpcc.9b10472⟩. ⟨hal-02472130⟩

• Article dans une revue

Cu segregation in Au–Cu nanoparticles exposed to hydrogen atmospheric pressure: how is fcc symmetry maintained?

Q. Wang, A. Nassereddine, D. Loffreda, C. Ricolleau, D. Alloyeau, C. Louis, L. Delannoy, J. Nelayah, H. Guesmi

In a recent work [A. Nassereddine et al., Small 2021, 17, 2104571] we reported the atomic-scale structure and dynamics of sub-4 nm sized Au nanoparticles (NPs) supported on titania in H2 at atmospheric pressure obtained by using aberration-corrected environmental transmission electron microscopy (…

Faraday Discussions, 2022, 242, pp.375-388. ⟨10.1039/D2FD00130F⟩. ⟨hal-03863753v2⟩

• Communication dans un congrès

Selective oxidation of lignin model compounds catalyzed by cobalt titanate prepared through a mechanoactivation top-down approach

Ronan Behling, Sabine Valange, Gregory Chatel, Franck Launay

3rd International Symposium on Green Chemistry, May 2017, La Rochelle, France. ⟨hal-02002117⟩