Laboratoire de réactivité de surface

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  • Article dans une revue

Surface passivation of aluminum alloy 6061 with gaseous trichlorosilane: A surface investigation

Rickielle Ngongang, Eric Marceau, Xavier Carrier, Claire-Marie Pradier, Christophe Méthivier, Jean-Luc Blanc, Martine Carré

A molecular-scale investigation of the interaction at room temperature between gaseous trichlorosilane (HSiCl3), used as a passivating agent, and surfaces of aluminum alloy AA6061 in a polished or hydroxylated state is conducted. Atomic force microscopy (AFM) and scanning electron microscopy (SEM)…

Applied Surface Science, 2014, 292, pp.165-173. ⟨10.1016/j.apsusc.2013.11.107⟩. ⟨hal-00982188⟩

  • Article dans une revue

NOx-TPD as a Tool to Estimate the Accessible Zirconia Surface of ZrO2-Containing Materials

Hiu Ying Law, Juliette Blanchard, Xavier Carrier, Cyril Thomas

NOx adsorption-desorption experiments were carried out on a series of W-free and W-containing ZrO2 samples. To the best of our knowledge, this study establishes for the first time NOx-TPD (temperature-programmed desorption of NOx) as a reliable method to estimate the accessible ZrO2 surface of…

Journal of Physical Chemistry C, 2010, 114 (21), pp.9731-9738. ⟨10.1021/jp9089535⟩. ⟨hal-00604772⟩

  • Article dans une revue

Tough thiourethane thermoplastics for fused filament fabrication

Gregory Ellson, Xavier Carrier, Jamie Walton, Samsuddin Faisal Mahmood, Kejia Yang, Joshua Salazar, Walter Voit

Fused filament fabrication (FFF) is the most common form of additive manufacturing. Most FFF materials are variants of commercially available engineering plastics. Their performance when printed can widely vary, thus there is an increasing volume of research on alternative materials with thermal…

Journal of Applied Polymer Science, 2018, 135 (6), pp.45574. ⟨10.1002/app.45574⟩. ⟨hal-04020495⟩

  • Article dans une revue

Oxidation and Surface Segregation Behavior of a Pt–Pd–Rh Alloy Catalyst

Paul A. J. Bagot, Karen Kruska, Daniel Haley, Xavier Carrier, Eric Marceau, Michael. P. Moody, George D. W. Smith

Platinum gauze catalysts are used extensively in the production of nitricacid from ammonia, where they are subject to harsh operating conditions combiningelevated temperatures and oxidizing environments. These cause significant loss of metalspecies as volatile oxides. How different metallic species…

Journal of Physical Chemistry C, 2014, 118 (45), pp.26130−26138. ⟨10.1021/jp508144z⟩. ⟨hal-01089821⟩

  • Article dans une revue

Nanosized Layered TOT Magnesium-Silicates: Equilibrium Morphologies and Surface Speciation, a Computational and Experimental Study

Hervé Toulhoat, Longfei Lin, Dalil Brouri, Jean-Marc Krafft, Yannick Millot, Guillaume Laugel, Hélène Lauron-Pernot

The morphology, surface speciation, NMR, and IR spectroscopic properties of nanosized layered magnesium silicate isostructural to talc at equilibrium in an aqueous environment were computed from first principles. The theoretical predictions were successfully compared with experimental results…

Journal of Physical Chemistry C, 2019, 123 (44), pp.26965-26979. ⟨10.1021/acs.jpcc.9b06794⟩. ⟨hal-02457716⟩

  • 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

Brake wear (nano)particle characterization and toxicity on airway epithelial cells in vitro

Chloé Puisney, Evdokia K Oikonomou, Sophie Nowak, Alexandre Chevillot, Sandra Casale, Armelle Baeza-Squiban, Jean-François Berret

Particulate air pollution results from different sources, among which those related to road traffic have a significant impact on human health. Combustion-derived particles emitted by thermal engines have been incriminated and are now better controlled. In contrast, non-exhaust emission sources…

Environmental science‎.Nano, 2018, 5 (4), pp.1036-1044. ⟨10.1039/C7EN00825B⟩. ⟨hal-02342487⟩

  • Article dans une revue

Oscillatory Behavior of Pd-Au Catalysts in Toluene Total Oxidation

Tarek Barakat, Joanna Rooke, Dayan Chlala, Renaud Cousin, Jean-François Lamonier, Jean-Marc Giraudon, Sandra Casale, Pascale Massiani, Bao-Lian Su, Stéphane Siffert

In this work, the activity of bimetallic Pd-Au doped hierarchically structured titania catalysts has been investigated in the total oxidation of toluene. In earlier works, doping titania with group Vb metal oxides ensured an increased catalytic performance in the elimination of VOC molecules. A…

Catalysts, 2018, 8 (12), pp.574. ⟨10.3390/catal8120574⟩. ⟨hal-02311603⟩

  • Article dans une revue

Porosity Design of Shaped Zeolites for Improved Catalyst Lifetime in the Methanol-to-Hydrocarbons Reaction

Rogéria Bingre, Renna Li, Qiang Wang, Patrick Nguyen, Thomas Onfroy, Benoit Louis

Additional porosity, such as meso-and macropores, was introduced in zeolite extrudates with the intention intuit of improving the effective diffusivity of the catalysts. The samples were characterized in depth by nitrogen adsorption-desorption, mercury intrusion porosimetry, ammonia temperature…

Catalysts, 2019, 9 (6), pp.545. ⟨10.3390/catal9060545⟩. ⟨hal-02271909⟩

  • Article dans une revue

Vanadium-Substituted Phosphomolybdic Acids for the Aerobic Cleavage of Lignin Models-Mechanistic Aspect and Extension to Lignin

Louay Al-Hussaini, Franck Launay, Elena Galvez

This work deals with the aerobic oxidative cleavage of CC and CO bonds catalyzed by the Keggin-type phosphovanadomolybdic acid (H 6 [PMo 9 V 3 O 40 ], noted H 6 PV 3). The latter was synthesized by an adapted hydrothermal procedure classically used for lower vanadium content and was tested as a…

Materials, 2020, 13 (4), pp.812. ⟨10.3390/ma13040812⟩. ⟨hal-02553354⟩