Laboratoire de réactivité de surface

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  • Article dans une revue

Mechanical properties of nanostructured films with an ultralow volume fraction of hard phase

Marion Chenal, Cyril Véchambre, J.-M. Chenal, Laurent Chazeau, Vincent Humblot, Laurent Bouteiller, Costantino Creton, Jutta Rieger

We demonstrate in this paper how polymerization induced self-assembly (PISA) using RAFT can be used to synthesize very asymmetric but monodisperse poly(acrylic acid)-b-poly(n-butyl acrylate) block copolymers, PAA-b-PBA, with a short PAA block and a long PBA block. In the course of the surfactant-…

Polymer, 2017, 109, pp.187-196. ⟨10.1016/j.polymer.2016.12.043⟩. ⟨hal-01421077⟩

  • Article dans une revue

Multi-stimuli responsive supramolecular diblock copolymers

L. Sambe, K. Belal, F. Stoffelbach, J. Lyskawa, F. Delattre, M. Bria, F.X. Sauvage, M. Sliwa, V. Humblot, B. Charleux, G. Cooke, P. Woisel

A well-defined cyclobis(paraquat-p-phenylene) (CBPQT<sup>4+</sup>) end-functionalized poly(<i>n</i>-butyl acrylate) 3 was prepared <i>via</i> RAFT polymerization using a new trithiocarbonate CBPQT<sup>4+</sup> derivative 2 as a reversible chain…

Polymer Chemistry, 2014, 5, pp.1031 - 1036. ⟨10.1039/c3py01093g⟩. ⟨hal-01113479⟩

  • Article dans une revue

Supramolecular Self‐Assembly and Organization of Collagen at Solid/Liquid Interface: Effect of Spheroid‐ and Rod‐Shaped TiO 2 Nanocrystals

Mathieu Beauvais, Thomas Degabriel, Nesrine Aissaoui, Vincent Dupres, Elodie Colaço, Karim El Kirat, Rute F Domingos, Dalil Brouri, Claire‐marie Pradier, Jolanda Spadavecchia, Jessem Landoulsi

The adsorption behavior of collagen on solid surfaces is a process that determines the role of this protein to mediate cell–material interaction. Herein, the mechanism of self‐assembly and organization of collagen on a model substrate is investigated in the presence of TiO2 nanoparticles. In…

Advanced Materials Interfaces, 2019, 6 (14), pp.1900195. ⟨10.1002/admi.201900195⟩. ⟨hal-02391527⟩

  • Communication dans un congrès

Caracterización in-operando de catalizadores Fe-N-C para la reducción del H2O2 mediante microscopía electroquímica de barrido

Carlos M Sánchez-Sánchez, Christian Candia-Onfray, Ricardo Venegas, Lin Zhang, Sophie Juillard, Ricardo Salazar, José F. Marco, Nieves Menendez, Francisco Javier Recio, Vincent Vivier

Se han desarrollado diferentes rutas sintéticas para obtener catalizadores pirolizados Fe-N-C muy activos para la reacción de reducción de oxígeno (ORR). En particular, presentamos aquí las bases nitrogenadas del ADN y el ARN como precursores de C-N [1]. El H2O2 formado como subproducto durante la…

XLII reunion del Grupo Especializado de Electoquimica de la RSEQ (42 GERSEQ 2022), Jul 2022, Santander, España. ⟨hal-03988309⟩

  • 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⟩

  • Thèse

Emergence de biopolymères de complexite contrôlée dans les scénarios d'origine de la vie, Emergence of biopolymers with controlled complexity in an origins of life scenario

Lise Bedoin

La matière vivante se caractérise par la présence de biopolymères non aléatoires dont la fonction biologique dépend de la séquence en monomères. Pour comprendre les origines de la vie, il est essentiel d’expliquer l’émergence de polymères non aléatoires dans un monde où les cellules vivantes n’…, Living matter is characterized by the presence of non-random biopolymers whose biological function depends on the monomer sequence. Thus, a major challenge for the elucidation of the Origins of Life lies in understanding how non-random polypeptides were formed and selected among all of the possible…

Polymères. Sorbonne Université, 2021. Français. ⟨NNT : 2021SORUS229⟩. ⟨tel-03475214⟩

  • Article dans une revue

Comment on “Direct Decomposition of NO x over TiO 2 Supported Transition Metal Oxides at Low Temperatures”

Josefine Schnee, Laurent Delannoy, Guylène Costentin, Frédéric Meunier, Cyril Thomas

In a recent paper entitled "Direct decomposition of NO x over TiO 2 supported transition metal oxides at low temperatures", 1 Damma et al. report highly promising results on the catalytic direct decomposition of NO to N 2 and O 2 at temperatures as low as 100 °C, with excellent tolerance…

Industrial and engineering chemistry research, 2020, 59, pp.4835-4837. ⟨10.1021/acs.iecr.0c00412⟩. ⟨hal-02504389⟩

  • Article dans une revue

On Catalytic Behavior of Bulk Mo2C in the Hydrodenitrogenation of Indole over a Wide Range of Conversion Thereof

Marek Lewandowski, Rafał Janus, Mariusz Wądrzyk, Agnieszka Szymańska-Kolasa, Céline Sayag, Gérald Djéga-Mariadassou

The catalytic activity of bulk molybdenum carbide (Mo2C) in the hydrodenitrogenation (HDN) of indole was studied. The catalyst was synthesized using a temperature-programmed reaction of the respective oxide precursor (MoO3) with the carburizing gas mixture of 10 vol.\% CH4/H2. The resultant…

Catalysts, 2020, 10 (11), pp.1355. ⟨10.3390/catal10111355⟩. ⟨hal-04025149⟩

  • Article dans une revue

Cobalt on dealuminated-Siβ as a catalyst for the oxidative dehydrogenation of propane

Stanislaw Dzwigaj, Diane Reja, Saremblé Koné-Guira, Antoine Miche, Guylène Costentin, Cyril Thomas

The present work aims at investigating the oxidative dehydrogenation of propane (ODHP) catalytic properties of Co species supported on a Siβ zeolitic support. The Co2+ species incorporated in the silanol nests created by dealumination of a HAlSiβ pristine support (Co-Siβ) appeared to be about 4…

Applied Catalysis A : General, 2023, 657, pp.119119. ⟨10.1016/j.apcata.2023.119119⟩. ⟨hal-04193203⟩

  • Thèse

Molecular mechanism of barnacle adhesion : a structural approach and underlying biochemistry, Mécanisme moléculaire de l'adhésion des balanes : approche structurale et biochimie sous-jacente

Sunyoung Hur

Barnacles adhere themselves robustly and permanently to diverse underwater substrates through strong interactions of a multi-protein complex layer called the “cement”. However, the intermolecular interactions responsible for the strong adhesive properties of the barnacle cement remains poorly…, Les balanes adhèrent de manière robuste et permanente à divers substrats sous-marins grâce à de fortes interactions d’une couche complexe multiprotéique appelée « ciment ». Cependant, les interactions intermoléculaires responsables des fortes propriétés adhésives du ciment de bernacle restent mal…

Material chemistry. Sorbonne Université; Nanyang Technological University (Singapour), 2022. English. ⟨NNT : 2022SORUS572⟩. ⟨tel-04318937⟩