• Communication dans un congrès

On the impedance response of a passive electrode : what is the influence of the double layer capacitance

Oumaïma Gharbi, Mai T.T. Tran, Mark Orazem, Bernard Tribollet, Mireille Turmine, Vincent Vivier

Determination of the effective capacitance of passive films remains a difficult challenge and mostly relies on the assumption the contribution of the double layer can be neglected. Such an approximation is easy to verify a posteriori when data analysis is performed assuming that each of the…

72nd ISE Meeting, ISE, Aug 2021, Jeju Island, South Korea. ⟨hal-04013545⟩

• Article dans une revue

Effect of the preparation method and of the vanadium content on the physicochemical and surface properties of vanadium–magnesium-based catalysts for the selective oxidation of n -butane

Samira Slyemi, Juliette R Blanchard, Siham Barama, Akila Barama, Hassiba Messaoudi, Sandra Casale, Christophe Calers, Zaher Ihdene

Two series of V–Mg–O catalysts with vanadium contents of 30 and 60 wt % were synthesized using sol–gel (SG) and wet impregnation (IMP). The elaborated catalysts were characterized by X-ray diffraction, Fourier transform infrared, X-ray fluorescence, Brunauer–Emmett–Teller, NH3–temperature…

Comptes Rendus. Chimie, 2017, 20 (11-12), pp.1062 - 1071. ⟨10.1016/j.crci.2017.08.002⟩. ⟨hal-01739904⟩

• Article dans une revue

Photoelectrochemical properties of ZnS- and CdS-TiO 2 nanostructured photocatalysts: Aqueous sulfidation as a smart route to improve catalyst stability

Samiha Chaguetmi, Larissa Chaperman, Sophie Nowak, Delphine Schaming, Stephanie Lau-Truong, Philippe Decorse, Patricia Beaunier, Cyrille Costentin, Fayna Mammeri, Slimane Achour, Souad Ammar

ZnS- and CdS-TiO2 hetero-nanostructures were synthesized by impregnation of polyol-made ZnS, CdS quantum dots (QDs) on the surface of TiO2 nanofibers that were grown on Ti sheets by controlled corrosion. Due to their finite size, the grafted QDs were partly oxidized, when air exposed, reducing…

Journal of Photochemistry and Photobiology A: Chemistry, 2018, 356, pp.489 - 501. ⟨10.1016/j.jphotochem.2018.01.038⟩. ⟨hal-01741065⟩

• Article dans une revue

Synthesis of Hybrid Polyphenol/Hydroxyapatite Nanomaterials with Anti-Radical Properties

Estelle Palierse, Sylvie Masse, Guillaume Laurent, Patrick Le Griel, Gervaise Mosser, Thibaud Coradin, Claude Jolivalt

Plant-derived natural bioactive molecules are of great therapeutic potential but, so far, their application in nanomedicine has scarcely been studied. This work aimed at comparing two methodologies, i.e., adsorption and in situ incorporation, to prepare hybrid polyphenol/hydroxyapatite…

Nanomaterials, 2022, 12 (20), pp.3588. ⟨10.3390/nano12203588⟩. ⟨hal-03819115⟩

• Article dans une revue

Comparing Al-SBA-15 Support and Pt/Al-SBA-15 Catalyst: Changes in Al Speciation and Acidic Properties Induced by the Introduction of Pt via Aqueous Medium

Soraya Handjani, Stanislaw Dzwigaj, Juliette Blanchard, E. Marceau, Jean-Marc Krafft, Michel Che

Topics in Catalysis, 2009, 52 (4), pp.334-343. ⟨10.1007/s11244-008-9177-x⟩. ⟨hal-03032175⟩

• Article dans une revue

The Impact of Reduction Temperature and Nanoparticles Size on the Catalytic Activity of Cobalt-Containing BEA Zeolite in Fischer–Tropsch Synthesis

Karolina A Chalupka, Jacek Grams, Pawel Mierczynski, Malgorzata I Szynkowska, Jacek Rynkowski, Thomas Onfroy, Sandra Casale, Stanislaw Dzwigaj

A goal of this work was to investigate the influence of the preparation procedure and activation conditions (reduction temperature and reducing medium: pure hydrogen (100% H 2) or hydrogen-argon mixture (5% H 2-95% Ar)) on the activity of Co-containing BEA zeolites in Fischer-Tropsch synthesis.…

Catalysts, 2020, 10 (5), pp.553. ⟨10.3390/catal10050553⟩. ⟨hal-03987087⟩

• Article dans une revue

Tunable hierarchical porous silica materials using hydrothermal sedimentation-aggregation technique

Abdelali Zaki, Jing Xu, Grégory Stoclet, Sandra Casale, Jean-Philippe Dacquin, Pascal Granger

Herein, a simple and efficient synthesis based on a dual templating approach allow the preparation of tunable macroporous mesoporous silica materials. Macropores incorporation has been obtained using polymer spheres of well-defined size and their subsequent removal by thermal treatment allowed the…

Microporous and Mesoporous Materials, 2015, Microporous and Mesoporous Materials, 208, pp.140-151. ⟨10.1016/j.micromeso.2015.01.041⟩. ⟨hal-03033078⟩

• Article dans une revue

Sensing the Charge State of Single Gold Nanoparticles via Work Function Measurements

Yingjie Zhang, Olivier Pluchery, Louis Caillard, Anne-Félicie Lamic-Humblot, Sandra Casale, Yves J. Chabal, Miquel Salmeron

Electrostatic interactions at the nanoscale can lead to novel properties and functionalities that bulk materials and devices do not have. Here we used Kelvin probe force microscopy (KPFM) to study the work function (WF) of gold nanoparticles (NPs) deposited on a Si wafer covered by a monolayer of…

Nano Letters, 2015, 15 (1), pp.51-55. ⟨10.1021/nl503782s⟩. ⟨hal-01120624⟩

• Article dans une revue

Gold Grafted to Mesoporous Silica Surfaces, a Molecular Picture

A. Wojtaszek, I. Sobczak, M. Ziolek, Frederik Tielens

The adsorption of HAuCl(4), the typical precursor for gold grafting on metal oxide surfaces, is investigated on amorphous silica support. The adsorption of the precursor is investigated as a function of its chlorinated form, depending on the pH, using periodic DFT. The results are supported with…

Journal of Physical Chemistry C, 2009, 113 (31), pp.13855-13859. ⟨10.1021/jp9036815⟩. ⟨hal-01361364⟩

• Thèse

Electrodeposition of Co, Ni-based Alloys in Ionic Solutions and their Electrocatalytic Propert, Électrodéposition de alliages à base de Co, Ni en solutions ioniques et leurs propriétés électrocatalytiques

Yuelin Xie

The use of fossil energy, one of the main contributors to carbon emissions and a major source of pollution, has become a hot topic of discussion in recent years. Predicted energy shortages and the resulting environmental challenges are forcing mankind to look for alternatives to fossil fuels.…, Le développement de diverses applications utilisant l’hydrogène en tant que vecteur énergétique ouvre des voies prometteuses pour l'avenir. L’hydrogène peut être produit de différentes manières, l’une d’entre elles est l’électrolyse de l’eau et plus particulièrement sa réduction qui conduit à…

Theoretical and/or physical chemistry. Sorbonne Université, 2023. English. ⟨NNT : 2023SORUS560⟩. ⟨tel-04800207⟩