• 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⟩

• 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⟩

• Article dans une revue

Synthesis and characterization of Ag-Protoporphyrin nano structures using mixed co-polymer method

Ramesh Perumal, Sandra Casale, Luca de Stefano, Jolanda Spadavecchia

In this paper, we report the synthesis of hybrid silver nanostructures (AgNPs) based on an effective mixing of polyols with Polyvinylpyrrolidone (PVP) and Porphyrin molecules, in particular Protoporphyrin IX (PP). The combination of PVP and PP, which act as co-directing agents and favour the…

Frontiers in Laboratory Medicine, 2017, ⟨10.1016/j.flm.2017.05.002⟩. ⟨hal-01526696⟩

• Article dans une revue

The controlled synthesis of metal-acid bifunctional catalysts: The effect of metal:acid ratio and metal-acid proximity in Pt silica-alumina catalysts for n-heptane isomerization

Jadid E Samad, Juliette R Blanchard, Celine R Sayag, Catherine R Louis, John R Regalbuto

Several series of metal-acid bifunctional catalysts with controlled metal:acid ratios and metal site-acid site proximity were evaluated for n-heptane isomerization. Through the study of metal deposition reported in the companion paper, proximity could be achieved at four distinct scales: atomic,…

Chinese Journal of Catalysis, 2016, 342, pp.203 - 212. ⟨10.1016/j.jcat.2016.08.004⟩. ⟨hal-01443956⟩

• Article dans une revue

Enzyme Immobilization on Silane-Modified Surface through Short Linkers: Fate of Interfacial Phases and Impact on Catalytic Activity

Nesrine Aissaoui, Latifa Bergaoui, Souhir Boujday, Jean-François Lambert, Christophe Méthivier, Jessem Landoulsi

We investigated the mechanism of enzyme immobilization on silanized surfaces through coupling agents (cross-linkers) in order to understand the role of these molecules on interfacial processes and their effect on catalytic activity. To this end, we used a model multimeric enzyme (G6PDH) and several…

Langmuir, 2014, 30 (14), pp.4066-77. ⟨10.1021/la404935q⟩. ⟨hal-01121650⟩

• Article dans une revue

Hydrodechlorination of 1,2-dichloroethane on nickel loaded Beta zeolite modified by copper: Influence of nickel and copper state on product selectivity

Rafal Baran, Anna Srebowata, Sandra Casale, D. Łomot, Stanislaw Dzwigaj

Influence of copper addition to nickel containing zeolite on activity and product selectivity in the hydrodechlorination of 1,2-dichloroethane was investigated. Ni2.0SiBEA and Cu2.0Ni2.0SiBEA zeolites were prepared by a two-steps postsynthesis method which consist of (1) creation of vacant T-atom…

Catalysis Today, 2014, 226, pp.134-140. ⟨10.1016/j.cattod.2013.09.005⟩. ⟨hal-01044872⟩

• Article dans une revue

Solvent effects on the vibrational spectrum of 3-hydroxyflavone

Ari Paavo Seitsonen, Abdenacer Idrissi, Stefano Protti, Alberto Mezzetti

3-hydroxyflavone (3HF) is a widely studied molecule that acts as a simplified prototype of biological, more complex flavonoids. Its solvation mechanism is still under investigation. Here we report a joint experimental and simulation study of the vibrational properties of 3HF in gas phase and in…

Journal of Molecular Liquids, 2019, 275, pp.723-728. ⟨10.1016/j.molliq.2018.11.020⟩. ⟨cea-04075728⟩

• Thèse

Molecules at surfaces : formation, reactivity, assembly of (bio)molecules on external and internal surfaces of nanosized/nanostructured materials, Molécules aux surfaces : formation, réactivité, assemblage de (bio) molécules sur les surfaces externes et internes de matériaux nanométriques / nanostructurés

Ola El Samrout

This PhD thesis aims to deeply study the polymerization of Gly monomers on amorphous silica to better understand its reaction mechanism, kinetics, and parameters related to the nature of the condensation product obtained under different environmental conditions. In the first part, the behavior of…, Cette thèse vise à étudier en profondeur la polymérisation des monomères Gly sur de la silice amorphe afin de mieux comprendre son mécanisme réactionnel, sa cinétique et les paramètres liés à la nature du produit de condensation obtenu dans différentes conditions environnementales. Dans la première…

Material chemistry. Sorbonne Université; Università degli studi (Turin, Italie), 2023. English. ⟨NNT : 2023SORUS085⟩. ⟨tel-04138067⟩

• Article dans une revue

Special Issue “Selected Papers from the 5nd Edition of Global Conference on Catalysis, Chemical Engineering and Technology (CAT 2019)”

Stanislaw Dzwigaj, Arthur Nozik

The present Special Issue concerns the papers which have been presented at the fifth edition of the Global Conference on Catalysis, Chemical Engineering & Technology (CAT 2019) that promote linkage of the catalytic science, engineering and technology [...]

Catalysts, 2021, 11 (1), pp.65. ⟨10.3390/catal11010065⟩. ⟨hal-03995332⟩

• Article dans une revue

PdAg alloy nanoparticles encapsulated in N-doped microporous hollow carbon spheres for hydrogenation of CO2 to formate

Guoxiang Yang, Yasutaka Kuwahara, Kohsuke Mori, Catherine Louis, Hiromi Yamashita

Here, we report a general synthesis approach to produce PdAg nanoparticles (NPs) that are dispersed uniformly within N-doped microporous hollow carbon spheres (NMHCS) for hydrogenation of CO2 to formate. The optimized PdAg@NMHCS catalyst, which was obtained by using an optimized amount of…

Applied Catalysis B: Environmental, 2021, 283, pp.119628. ⟨10.1016/j.apcatb.2020.119628⟩. ⟨hal-03995568⟩