Laboratoire de réactivité de surface

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  • Article dans une revue

Oxygen reduction reaction monitored during corrosion by means of pumped-micropipette delivery/substrate collection (Pumped-MD/SC) mode of scanning electrochemical microscopy

Abdelilah Asserghine, Sophie Juillard, Julie Ducrot, Vincent Vivier, Carlos Sánchez-Sánchez

The key improvement of the corrosion resistance of metals requires understanding and resolving the electrochemical reactions involved at the local scale. Here, we present the use of the pumped-micropipette delivery/substrate collection (Pumped-MD/SC) mode of scanning electrochemical microscopy (…

Electrochimica Acta, 2023, 441, pp.141775. ⟨10.1016/j.electacta.2022.141775⟩. ⟨hal-03934097⟩

  • Thèse

Approche expérimentale et théorique de l'inhibition de corrosion de surfaces métalliques, Experimental and theoretical approach of corrosion inhibition of metallic surfaces

Pauline Cornette

La corrosion des surfaces d’aluminium et d’alliages aluminium/cuivre, et notamment la corrosion localisée, est un problème majeur dans l’industrie, et l’utilisation d’inhibiteur de corrosion est bien souvent indispensable. Les chromates remplissent parfaitement leurs rôles d’inhibition mais seront…, Corrosion of aluminum and aluminum/copper alloy surfaces, including localized corrosion, is a major problem in the industry, and the use of a corrosion inhibitor is often essential. Chromates perfectly fulfill their role of inhibition but will soon be prohibited because of their toxicities for…

Matériaux. Université de recherche Paris-Sciences-et-Lettres, 2018. Français. ⟨NNT : ⟩. ⟨tel-01903566⟩

  • Article dans une revue

Fe3+-doped ordered mesoporous γ-Fe2O3/SiO2 microspheres as a highly efficient magnetically separable heterogeneous Fenton catalyst

Nassira Ferroudj, Patricia Beaunier, Anne Davidson, Sébastien Abramson

Here, several γ-Fe 2 O 3 /SiO 2 nanocomposite microspheres were synthesized, characterized and tested as magnetically separable heterogeneous catalysts in an advanced oxidation process. A strong relation between the structure and the activity of these materials was evidenced. Two parameters,…

Microporous and Mesoporous Materials, 2021, 326, pp.111373. ⟨10.1016/j.micromeso.2021.111373⟩. ⟨hal-03524378⟩

  • Article dans une revue

Bi2O3, BiVO4, and Bi2WO6: Impact of Surface Properties on Photocatalytic Activity under Visible Light

Tamar Saison, Nicolas Chemin, Corinne Chaneac, Olivier Durupthy, Valerie Ruaux, Laurence Mariey, Françoise Mauge, Patricia Beaunier, Jean-Pierre Jolivet

Bismuth-based oxides have attractive photocatalytic properties under visible light. A better understanding of the origin of that good photocatalytic activity should allow its control and its optimization. In this Article, we have studied the impact of surface properties on photocatalytic activity…

Journal of Physical Chemistry C, 2011, 115 (13), pp.5657-5666. ⟨10.1021/jp109134z⟩. ⟨hal-01840373⟩

  • Communication dans un congrès

Laboratory simulation to support the search for organic molecules at the surface of Mars

Olivier Poch, Cyril Szopa, Patrice Coll, Maguy Jaber, Thomas Georgelin, Jean-Francois Lambert, Fabien Stalport

The search for organic carbon at the surface of Mars, as clues of past habitability or remnants of life, is a major science goal of Mars’ exploration. Understanding the chemical evolution of organic molecules under current Martian environmental conditions is essential to support the analyses…

40th COSPAR Scientific Assembly, Aug 2014, Moscow, Russia. pp.Abstract B0.2-25-14. ⟨insu-01148653⟩

  • Article dans une revue

Surface-induced assembly of sophorolipids

Jessie Peyre, Ahmed Hamraoui, Marco Faustini, Vincent Humblot, Niki Baccile

The surface self-assembly properties of acidic sophorolipids, a bolaform microbial glycolipids with pH-responsive properties in solution, were studied based on the chemical nature of the support and pH of the solution. Sophorolipids generally form micelles in water but formation of morphologies…

Physical Chemistry Chemical Physics, 2017, 19, pp.15227-15238. ⟨10.1039/C7CP01339F⟩. ⟨hal-01534555⟩

  • Article dans une revue

Decoding anionic organization of hydroxide-fluorides in a diaspore-type network

Helies Hyrondelle, Matthew Suchomel, Vincent Rodriguez, Étienne Durand, Yannick Millot, Mathieu Duttine, Alain Demourgues

The diaspore-type crystalline structure is historically well-known in mineralogy, but it has also been widely studied for various applications in the field of catalysis, electrocatalysis, and batteries. However, once two anions of similar ionic size but different electronegativity, such as F– and…

Inorganic Chemistry, 2025, 64 (4), pp.1677-1689. ⟨10.1021/acs.inorgchem.4c03794⟩. ⟨hal-04939898⟩

  • Article dans une revue

Structure of the Surface Region of Stainless Steel: Bulk and Thin Films

Debi Garai, Axel Wilson, Ilaria Carlomagno, Carlo Meneghini, Francesco Carla, Hadeel Hussain, Ajay Gupta, Jörg Zegenhagen

The surface region of austenitic stainless steel (SS) is investigated by synchrotron X-ray powder diffraction (XRPD) and X-ray absorption near edge structure (XANES) measurements, because its composition and structure are crucial for the corrosion resistance of SS. Grazing incidence XRPD of a…

physica status solidi (b), 2022, 259 (4), pp.2100513. ⟨10.1002/pssb.202100513⟩. ⟨hal-03821005⟩

  • Article dans une revue

Nanoscale antiadhesion properties of sophorolipid-coated surfaces against pathogenic bacteria

Claire Valotteau, Niki Baccile, Vincent Humblot, Sophie Roelants, Wim Soetaert, Christian V Stevens, Yves Dufrêne

A current challenge in nanomedicine is to develop innovative strategies to fight infections caused by multiresistant bacterial pathogens. A striking example is antiadhesion therapy, which represents an attractive alternative to antibiotics to prevent and treat biofilm-associated infections on…

Nanoscale Horizons, 2019, 4, pp.975-982. ⟨10.1039/C9NH00006B⟩. ⟨hal-02093308⟩

  • Article dans une revue

Stabilization of ribofuranose by a mineral surface

Thomas Georgelin, Maguy Jaber, Frederic Fournier, Guillaume Laurent, France Costa-Torro, Marie-Christine Maurel, Jean-François Lambert

The existence of the ribose moiety in biomolecules poses two problems for prebiotic chemistry. First, the exclusive presence of the furanose isomer in RNA has to be accounted for since furanose is a minor form in solution and does not exist in crystals. Second, all D-ribose polymorphs are unstable…

Carbohydrate Research, 2015, 402, pp.241-244. ⟨10.1016/j.carres.2014.07.018⟩. ⟨hal-01275035⟩