• Article dans une revue

Monitoring of the Plasmon Resonance of Gold Nanoparticles in Au/TiO2 Catalyst under Oxidative and Reducing Atmospheres

Yves Borensztein, Laurent Delannoy, Anis Djedidi, Ruben G. Barrera, Catherine Louis

Diffuse optical reflectance of Au/TiO2 powder catalysts, prepared by the deposition-precipitation method, is measured in the UV-visible range in controlled atmosphere. An intense optical absorption observed around 550 nm is interpreted by the excitation of plasmon resonances in the 4 nm gold…

Journal of Physical Chemistry C, 2010, 114, pp.9008. ⟨10.1021/jp101248h⟩. ⟨hal-00490473⟩

• Article dans une revue

HRTEM and STEM-HAADF characterisation of Au-TiO2 and Au-Al2O3 catalysts for a better understanding of the parameters influencing their properties in CO oxidation

L. Delannoy, R.L. Chantry, S. Casale, Z.Y. Li, Yves Borensztein, C. Louis

Gold catalysts supported on titania (Au-TiO2) and alumina (Au-Al2O3) were prepared by deposition- precipitation with urea and then activated before characterisation and reaction in CO oxidation, either by calcination in air at 500 1C or reduction under H2 at 300 1C. Gold nanoparticles with average…

Physical Chemistry Chemical Physics, 2013, 15, pp.3473-3479. ⟨10.1039/c2cp44157h⟩. ⟨hal-00811527⟩

• Article dans une revue

Contributions of photochemistry to bio-based antibacterial polymer materials

Davy-Louis Versace, Louise Breloy, Estelle Palierse, Thibaud Coradin

Surgical site infections constitute a major health concern that may be addressed by conferring antibacterial properties to surgical tools and medical devices via functional coatings. Bio-sourced polymers are particularly well-suited to prepare such coatings as they are usually safe and can exhibit…

Journal of materials chemistry‎ B, 2021, 9, pp.9624-9641. ⟨10.1039/D1TB01801A⟩. ⟨hal-03450996⟩

• Article dans une revue

Ionic liquid route for the corrosion inhibition of Al alloys: the effect of butylammonium nitrate on the corrosion of AA2024-T6

Abdelmoheiman Zakaria Benbouzid, Oumaïma Gharbi, Najet Sidi-Yakoub, Mai T T Tran, Mireille Turmine, Vincent Vivier

In this work, the effect of an ammonium nitrate ionic liquid on the corrosion susceptibility of an Al-Cu-Mg alloy was investigated. The effect of the nitrate anion and the ammonium cation on the anodic and cathodic kinetics were studied separately using potentiodynamic polarisation testing,…

Corrosion Communications, 2023, 9, pp.57 - 64. ⟨10.1016/j.corcom.2022.11.001⟩. ⟨hal-04274869v2⟩

• Article dans une revue

Inorganic Phosphate and Nucleotides on Silica Surface: Condensation, Dismutation, and Phosphorylation

Thomas Georgelin, Maguy Jaber, Thomas Onfroy, Aaron-Albert Hargrove, France Costa-Torro, Jean-François Lambert

We explore the reactivity of inorganic monophosphate ions (Pi) and 5′-adenosine monophosphate (AMP), adsorbed onto amorphous silica separately or together. This question has relevance for prebiotic chemistry scenarios and, more generally, for biomedical applications involving biomolecule adsorption…

Journal of Physical Chemistry C, 2013, 117, pp.12579-12590. ⟨10.1021/jp402437p⟩. ⟨hal-00918562⟩

• Thèse

Développement d’un microsystème électrochimique pour l’étude de micro-objets circulants dans un canal microfluidique, Development of an electrochemical microsystem for the study of circulating micro-objects in a microfluidic channel

Ines Amokrane

Dans le cadre de cette thèse, l’objectif est de caractériser des micro-objets circulant dans un microcanal à l’aide de techniques électrochimiques. Dans le but de concevoir et de fabriquer un tel système, plusieurs méthodes et techniques sont nécessaires. Tout d’abord, le microsystème est constitué…, In this thesis, the aim is to characterise micro-objects flowing in a microchannel using electrochemical techniques. In order to design and fabricate such a system, several methods and techniques are required. Firstly, the microsystem consists of PDMS microchannels and thin film microelectrodes.…

Dynamique des Fluides [physics.flu-dyn]. Sorbonne Université, 2022. Français. ⟨NNT : 2022SORUS049⟩. ⟨tel-03714132⟩

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Selective hydrogenation of butadiene over TiO2supported copper, gold and gold–coppercatalysts prepared by deposition–precipitation

Laurent Delannoy, Gode Thrimurthulu, Padigapati S. Reddy, Christophe Méthivier, Jaysen Nelayah, Benjaram M. Reddy, Christian Ricolleau, Catherine Louis

Oxide supported copper and gold catalysts are active for the selective hydrogenation of polyunsaturatedhydrocarbons but their low activity compared to palladium catalysts and the deactivation of copper catalystslimit their use. There are only a very limited number of studies concerned with the use…

ChemPhysChem, 2014, 16 (48), pp.26514-26527. ⟨10.1039/c4cp02141j⟩. ⟨hal-01086479⟩

• Article dans une revue

Silica Surface Features and Their Role in the Adsorption of Biomolecules: Computational Modeling and Experiments

Albert Rimola, Dominique Costa, Mariona Sodupe, Jean-François Lambert, Piero Ugliengo

Chemical Reviews, 2013, 113 (6), pp.4216-4313. ⟨10.1021/cr3003054⟩. ⟨hal-00836288⟩

• Article dans une revue

Influence of Dealumination by Acetylacetone on Acidity and Activity of Amorphous Silica-Aluminas

Xiaojing Jin, Yannick Millot, Céline Sayag, Juliette Blanchard, Pascal Ping Man

The influence of dealumination of two commercial amorphous silica-aluminas (ASAs) with acetylacetone on their textural properties, acidity and catalytic activity was studied by N2-sorption, NH3-TPD, FTIR of adsorbed pyridine as well as 1 H and 27 Al MAS NMR. Acetylacetone treatment increases the…

ChemistrySelect, 2020, 5 (8), pp.2489-2495. ⟨10.1002/slct.201904712⟩. ⟨hal-02919070⟩

• Article dans une revue

Behavior of cellobiose in iron-containing solutions: towards a better understanding of the dominant mechanism of degradation of cellulosic paper by iron gall inks

Alice Gimat, Anne-Laurence Dupont, Hélène Lauron-Pernot, Sabrina M Paris, Véronique Rouchon, Pascale Massiani

Cellobiose, a dimer of glucose wearing a glycosidic bond as in cellulose, was used as model molecule to understand the chemical degradation pathways taking place in iron gall inks impregnated papers. Experiments were carried out in liquid phase at 80 degrees C to study the effects of pH and of the…

Cellulose, 2017, 24 (11), pp.5101 - 5115. ⟨10.1007/s10570-017-1434-3⟩. ⟨hal-01651975⟩