• Article dans une revue

Potential of electrochemical techniques (macro and microelectrodes) in fronth flotation concentration of sulfide minerals, Potencialidade das técnicas eletroquímicas (macro e microeletrodos) na concentração por flotação de minerais sulfetados

Marina Martins Mennucci, Tatiana Mallet Machado, Vincent Vivier, Hercílio Gomes De Melo, Jean Vicente Ferrari

ABSTRACT The interactions between sulfide minerals and the chemistry of the exposure medium, from the grinding process to the flotation pulp, can be electrochemical and/or galvanic and influence the hydrophobicity of their surfaces, resulting in different levels of recovery. In the literature, most…, RESUMO As interações entre os minerais sulfetados e a química do meio de exposição, desde o processo de moagem dos minérios até a polpa de flotação, podem ser de caráter eletroquímico e/ou de natureza galvânica e influenciam a hidrofobicidade de suas superfícies, resultando em diferentes níveis de…

Revista Matéria, 2022, 27 (1), pp.e13151. ⟨10.1590/S1517-707620220001.1351⟩. ⟨hal-03720585⟩

• 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

Biomineralization in Barnacle Base Plate in Association with Adhesive Cement Protein

Sunyoung Hur, Christophe Méthivier, Axel Wilson, Michèle Salmain, Souhir Boujday, Ali Miserez

ACS Applied Bio Materials, 2023, 6 (9), pp.3423-3432. ⟨10.1021/acsabm.3c00117⟩. ⟨hal-04295451⟩

• Article dans une revue

Selective Formation of Epoxylimonene Catalyzed by Phosphonyl/Arsonyl Derivatives of Trivacant Polyoxotungstates at Low Temperature

Ourania Makrygenni, Louise Vanmairis, Sabrina Taourit, Franck Launay, Alain Shum Cheong Sing, Anna Proust, Hélène Gérard, Richard Villanneau

The catalytic performances of three organophosphonyle/arsonyle derivatives of POMs were evaluated for the epoxidation of limonene in acetonitrile, using aqueous H2O2 as the oxidant. All three W-based POMs catalysts operated without any additional transition-metal ions and displayed excellent…

European Journal of Inorganic Chemistry, 2019, 2020 (7), pp.605-612. ⟨10.1002/ejic.201901152⟩. ⟨hal-02426557⟩

• Communication dans un congrès

Cristallisation de nanoparticules d'oxydes (MnO2, Co3O4, gamma-Fe2O3) dans les mésopores de silices

Anne Davidson, Vincent Dupuis, Regine Perzynski, Nissrine El Hassan, Marianne Imperor-Clerc, Dominique Bazin, Patricia Beaunier, Marie Dominique Appay

Du fait du grand nombre d'atomes exposés sur leur surface et de propriétés redox particulières, des nanoparticules d'oxydes de métaux de transition pourraient avantageusement remplacer les métaux nobles pour la gestion de problèmes environnementaux (élimination de CO à basse température,…

Cristallisation de nanoparticules d'oxydes (MnO2, Co3O4, gamma-Fe2O3) dans les mésopores de silices SBA-15: modifications structurales et propriétés rédox en fonction de la taille, Nov 2006, Dijon, France. ⟨hal-00172108⟩

• Article dans une revue

Time-resolved infrared spectroscopy in the study of photosynthetic systems.

Alberto Mezzetti, Winfried Leibl

Time-resolved (TR) infrared (IR) spectroscopy in the nanosecond to second timescale has been extensively used, in the last 30 years, in the study of photosynthetic systems. Interesting results have also been obtained at lower time resolution (minutes or even hours). In this review, we first…

Photosynthesis Research, 2017, 131 (2), pp.121-144. ⟨10.1007/s11120-016-0305-3⟩. ⟨hal-01451714⟩

• Article dans une revue

Redox-Triggered Control of Cell Adhesion and Deadhesion on Poly(lysine)- g -poly(ethylene oxide) Adlayers

Louise Hespel, Julien Dupré de Baubigny, Pierre Lalanne, Simon de Beco, Mathieu Coppey, Catherine Villard, Vincent Humblot, Emmanuelle Marie, Christophe Tribet

Spontaneous adsorption of poly(lysine)-g-poly(ethyleneglycol) comb-like copolymers (PLL-g-PEG) is a versatile mean to coat substrates with polymer layers that resist cell adhesion. We prepared redox cleavable PLL-g-PEG to switch adhesion on demand. Redox sensitivity was obtained by introducing…

ACS Applied Bio Materials, 2019, 2 (10), pp.4367-4376. ⟨10.1021/acsabm.9b00601⟩. ⟨hal-02301433⟩

• 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⟩

• Article dans une revue

Combined ATR-FTIR and DFT Study of Cyclohexanone Adsorption on Hydrated TiO2 Anatase Surfaces

Ana Rita Almeida, Monica Calatayud, Frederik Tielens, Jacob A. Moulijn, Guido Mul

The adsorption of cyclohexanone on different planes ((100), (101), and (001)) of anatase TiO2, with variable level of hydration, was evaluated by density functional theory (DFT) calculations. Surface hydration was found to affect the cyclohexanone adsorption enthalpy and the calculated infrared…

Journal of Physical Chemistry C, 2011, 115, pp.14164. ⟨10.1021/jp1122129⟩. ⟨hal-00676618⟩

• 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⟩