Laboratoire de réactivité de surface

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  • Article dans une revue

Effect of the activation temperature on the state of gold supported on titania: An FT-IR spectroscopic study

Tz. Venkov, Katia Fajerwerg, L. Delannoy, Hr. Klimev, K. Hadjiivanov, C. Louis

The effect of the pre-treatment conditions on the evolution of gold species on an Au/TiO2 sample prepared by deposition–precipitation with urea has been followed by FT-IR spectroscopy of adsorbed CO. Gold is in the form of Au3+ species on the as-prepared sample and is not affected by evacuation at…

Applied Catalysis A : General, 2006, 301 (1), pp.106-114. ⟨10.1016/j.apcata.2005.11.019⟩. ⟨hal-03663503⟩

  • Article dans une revue

Synthesis and Unique Catalytic Performance of Single-Site Ti-Containing Hierarchical Macroporous Silica with Mesoporous Frameworks

Takashi Kamegawa, Norihiko Suzuki, Michel Che, Hiromi Yamashita

Single-site Ti-containing hierarchical macroporous silica with mesoporous frameworks (Ti-MMS) was successfully prepared by a solvent evaporation method using organic surfactant and poly(methyl methacrylate) (PMMA) colloidal crystals as the template. The formation of a well-defined macroporous…

Langmuir, 2011, 27 (6), pp.2873-2879. ⟨10.1021/la1048634⟩. ⟨hal-00602941⟩

  • Article dans une revue

High-Current-Density CO2-to-CO Electroreduction on Ag-Alloyed Zn Dendrites at Elevated Pressure

Sarah Lamaison, David Wakerley, Juliette Blanchard, David Montero, Gwenaelle Rousse, Dimitri Mercier, Philippe Marcus, Dario Taverna, Domitille Giaume, Victor Mougel, Marc Fontecave

High-surface-area Ag-Zn-alloyed electrodes undertake the rapid conversion of CO 2 to CO. This has the combined benefit of removing CO 2 and producing an industrially relevant chemical synthon. At atmospheric pressure, the electrodes plateau in activity owing to the mass-transport limitation of CO 2…

Joule, 2020, 4 (2), pp.395-406. ⟨10.1016/j.joule.2019.11.014⟩. ⟨hal-02919030⟩

  • Article dans une revue

Simultaneous removal of microorganisms and ethyl acetate from fruit storage indoor air using a low-cost photoreactor based on luminous textiles

Sarra Karoui, Amine Aymen Assadi, Amina Meslem, Bouzaza Abdelkrim

Escherichia coli ( E. coli), ), Salmonella typhimurium ( S. typhimurium), ), Listeria monocytogenes (L. monocytogenes), and Cladosporium cladosporioides (C. C. cladosporioides), ), as microorganisms, and ethyl acetate (EA), as a volatile organic compound, were chosen as target pollutants to be…

Food Bioscience, 2024, 61, pp.104771. ⟨10.1016/j.fbio.2024.104771⟩. ⟨hal-04699894⟩

  • Article dans une revue

Formation of Activated Biomolecules by Condensation on Mineral Surfaces – A Comparison of Peptide Bond Formation and Phosphate Condensation

Thomas Georgelin, Maguy Jaber, Houssein Bazzi, Jean-François Lambert

Many studies have reported condensation reactions of prebiotic molecules, such as the formation of peptide bonds between amino acids, to occur to some degree on mineral surfaces. We have studied several such reactions on the same divided silica. When drying steps are applied, the equilibria of…

Origins of Life and Evolution of the Biosphere, 2013, 43 (4-5), pp.429-43. ⟨10.1007/s11084-013-9345-2⟩. ⟨hal-01121640⟩

  • Article dans une revue

Pseudoaneurysm of anterior tibial artery following a diaphyseal fracture ă of the tibia mimicking a malignant bone tumor

Pierre Sautet, Elie Choufani, Philippe Petit, Franck Launay, Jean-Luc Jouve, Sebastien Pesenti

Pseudoaneurysms of the lower limb are rare and frequently iatrogenics ă complications. Closed traumas are likely to generate lesions of the ă arterial wall, which generally become symptomatic at a later stage. The ă diagnosis of such vascular lesion is difficult because the ă symptomatology and the…

Archives of Orthopaedic and Trauma Surgery, 2016, 136 (9), pp.1247-1250. ⟨10.1007/s00402-016-2525-6⟩. ⟨hal-01482636⟩

  • Article dans une revue

Effect of Ca-doping on microstructure and photocatalytic activity of ZnO nanoparticles synthesized by sol gel method

R. Slama, J. El Ghoul, K. Omri, A. Houas, L. El Mir, Franck Launay

We report the synthesis of Zn1−xCaxO nanoparticles prepared by a sol–gel processing technique for x ranging from 0 to 0.05. The structural, morphological and optical properties of the nanoparticles were investigated by X-ray diffraction, transition electron microscopy, UV measurements, and…

Journal of Materials Science: Materials in Electronics, 2016, 27 (8), pp.7939 - 7946. ⟨10.1007/s10854-016-4786-9⟩. ⟨hal-01548339⟩

  • Thèse

Use of unconventional activation methods for the oxidative cleavage of lignin by dioxygen, Utilisation de moyens d’activation non-conventionnels pour le clivage oxydant de la lignine par le dioxygène

Louay Al-Hussaini

Due to the depletion of fossil resources, the interest of lignin as a sustainable alternative to petroleum is growing. Thus, the main purpose of this thesis was to develop a process for oxidative cleavage of lignin by dioxygen that involves unconventional methodologies like sonochemistry and ball-…, Du fait de l'épuisement des ressources fossiles, l'intérêt de la lignine en tant qu'alternative durable est grandissant. Ainsi, le but principal de cette thèse était de mettre au point un procédé de clivage oxydant de la lignine par le dioxygène qui implique des voies non…

Other. Sorbonne Université, 2019. English. ⟨NNT : 2019SORUS448⟩. ⟨tel-03463302⟩

  • 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⟩