• Article dans une revue

Anatase titania activated by Cu(II) or Zn(II) nanoparticles for the photooxidation of methanol assisted by Rhodamine-B

Wissame Chettah, Siham Barama, Mohamed-Salah Medjram, Mohamed Selmane, David Montero, Anne Davidson, Jacques C. Védrine

This paper deals with the photocatalytic reactivity of anatase titania particles, modified by surface deposition of Cu[See texte] and Zn[See texte]oxide/hydroxide nanoparticles which are detected by EDS and FX techniques. The objective of the preparation steps was chosen to avoid the formation of…

Materials Chemistry and Physics, 2021, 257, pp.123714 -. ⟨10.1016/j.matchemphys.2020.123714⟩. ⟨hal-03491407⟩

• Article dans une revue

Microstructural, morphological characterization and corrosion behavior of sand cast AlSi10Cu(Fe) alloy in chloride solution

Belkacem Korichi, Nacer Zazi, Stéphanie Delbrel, Kieu Ngo, Jean Paul Chopart

In order to examine the relationship between the microstructure and the corrosion behavior in chloride solution, the microstructure of AlSi10Cu (Fe) sand cast aluminum alloy has been investigated by using different techniques including scanning electron microscopy, energy-dispersive spectroscopy, X…

Chemical Papers, 2022, 76, pp.2947-2967. ⟨10.1007/s11696-022-02064-9⟩. ⟨hal-03597124⟩

• Article dans une revue

Proving ligand structure-reactivity correlation on multinuclear copper electrocatalysts supported on carbon black for the oxygen reduction reaction

Ricardo Venegas, Karina Muñoz-Becerra, Sophie Juillard, Lin Zhang, Rubén Oñate, Ingrid Ponce, Vincent Vivier, Francisco J Recio, Carlos M Sánchez-Sánchez

Bioinspired transition-metal catalysts seek to mimic the specific active site of metalloenzymes, as the multicopper oxidase, that can efficiently reduce dioxygen to water via a complete 4-electrons mechanism at low overpotential. However, the multicopper oxidase enzymes lack stability under…

Electrochimica Acta, 2022, 434, pp.141304. ⟨10.1016/j.electacta.2022.141304⟩. ⟨hal-03808243⟩

• 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⟩

• Article dans une revue

Importance of the Nature of the Active Acid/Base Pairs of Hydroxyapatite Involved in the Catalytic Transformation of Ethanol to n ‐Butanol Revealed by Operando DRIFTS

Manel Ben Osman, Jean‐marc Krafft, Cyril Thomas, Tetsuya Yoshioka, Jun Kubo, Guylène Costentin

Operando DRIFTS is used to identify the nature and the role of the surface sites of hydroxyapatites (HAps) involved in the catalytic transformation of ethanol to n‐butanol. The surface processes occurring upon a first reaction step followed by a step under He flow greatly influence the reactivity…

ChemCatChem, 2019, 11 (6), pp.1765-1778. ⟨10.1002/cctc.201801880⟩. ⟨hal-02168502⟩

• Article dans une revue

Detailed kinetic modeling study of NOx oxidation and storage and their interactions over Pt/Ba/Al2O3 monolith catalysts

Nikola Rankovic, Andre Nicolle, Patrick da Costa

The concept of nitrogen oxide storage-redn. (NSR) is a promising aftertreatment technol. for reducing NOx emissions from lean-burn engine exhaust. The present work focuses on the first two steps of the overall NSR mechanism, namely, NO to NO2 oxidn. and NOx storage. The governing storage mechanisms…

Journal of Physical Chemistry C, 2010, 114 (15), pp.7102-7111. ⟨10.1021/jp100192u⟩. ⟨hal-00604794⟩

• Article dans une revue

Controlling the Nucleation of a Semicrystalline Polymer by Inducing Compartmentalization of Competitive Nucleating Agents

Arnaud Y.‐g. Delplanque, Sandra Casale, Bruno Bresson, Paolo Edera, Clément Guibert, Nathan J van Zee

Many functional polymeric systems have been inspired by the principle of compartmentalization, a ubiquitous form of hierarchical assembly found in Nature. For instance, polymers have been elaborated with microcapsules that release a chemical payload upon activation by an external stimulus. A…

Small, 2025, 21 (43), pp.e07875. ⟨10.1002/smll.202507875⟩. ⟨hal-05595730⟩

• Thèse

Curie composite nanoparticles for advanced manufacturing and catalysis, NPs Curie Composites pour la fabrication avancée et la catalyse

Naoures Hmili

This thesis investigates the design and functionalization of magnetic nanoparticles (MNPs) in the fields of resin cross-linking and catalysis by magnetic hyperthermia. Mn and Zn ferrite nanoparticles were synthesized with adjustable size and composition, allowing precise control of magnetic…, Cette thèse porte sur la conception et la fonctionnalisation de nanoparticules magnétiques (MNP) pour des applications dans les domaines de la réticulation des résines et de la catalyse par hyperthermie magnétique. Des nanoparticules de ferrite de Mn et de Zn ont été synthétisées avec une taille et…

Material chemistry. Sorbonne Université, 2025. English. ⟨NNT : 2025SORUS594⟩. ⟨tel-05599933⟩

• Article dans une revue

Tuning the load in gold and magnetic nanoparticles in nanogels through their design for enhanced dual magneto-photo-thermia

Esther Cazares-Cortes, Claire Wilhelm, Jose Efrain Perez, Ana Espinosa, Sandra Casale, Aude Michel, Ali Abou-Hassan, Christine Ménager

We describe a novel synthesis allowing to enhance the load in magnetic nanoparticles and gold nanorods in nanogels. Two different structures, simple cores and core-shells were synthesized and their heating properties upon alternating magnetic field or laser exposure are compared. Remarkably, the…

Chemical Communications, In press, ⟨10.1039/D0CC07176E⟩. ⟨hal-03236485⟩

• Communication dans un congrès

Soil organo-mineral associations fine structure : nanoscale MET-EELS imaging of Fe Si Al-organic matter coprecipitates

Nithavong Cam, Clement Levard, Emmanuel Doelsch, Jérôme Rose, Bertrand Devouard, Isabelle Basile-Doelsch

EGU General Assembly 2019, Apr 2019, Vienne, Austria. ⟨hal-03548680⟩