Laboratoire de réactivité de surface

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  • Article dans une revue

Corrosion of Old Overhead Lines: Insights into Aluminum-Steel Galvanic Couple Using Electrochemical Techniques

Divino Salvador Ramírez Rico, Stéphane Heurtault, Julien Said, Yuelin Xie, Mireille Turmine, Vincent Vivier

In order to explain the corrosion inside 20 th century power lines, the galvanic corrosion of steel and aluminum from 1949 was examined. In this investigation, 0.1 M Na2SO4 + 1 mM NaCl was used as moderately corrosive medium. Various electrochemical methods were applied to determine the corrosion…

Journal of The Electrochemical Society, 2024, 171 (4), pp.041504. ⟨10.1149/1945-7111/ad39ae⟩. ⟨hal-04775539⟩

  • Article dans une revue

The Catalytic Performance of Ni-Co/Beta Zeolite Catalysts in Fischer-Tropsch Synthesis

Renata Sadek, Karolina Chalupka, Pawel Mierczynski, Waldemar Maniukiewicz, Jacek Rynkowski, Jacek Gurgul, Magdalena Lasoń-Rydel, Sandra Casale, Dalil Brouri, Stanislaw Dzwigaj

The influence of nickel introduction on the catalytic performance of cobalt micro-and mesoporous Beta zeolite catalysts in Fischer-Tropsch Synthesis was studied. Catalysts containing 3 wt% of nickel and 10 wt% of cobalt were prepared by co-impregnation and sequential impregnation and…

Catalysts, 2020, 10 (1), pp.112. ⟨10.3390/catal10010112⟩. ⟨hal-02553371⟩

  • Article dans une revue

Self-Regulating VO2 Photonic Pigments

Maria Letizia de Marco, Olivier Smith, Fanny Thorimbert, Cédric Boissière, Lionel Nicole, Jean-Marc Krafft, Clement Sanchez, Marco Faustini

Nanostructured photonic pigments exhibiting structural colors hold promises to replace conventional pigments for several applications. One emerging challenge in the field consists in integrating additional functionalities to the pigments beyond colors. For instance, integrating phase changing…

Chemistry of Materials, 2023, 35 (17), pp.7164-7174. ⟨10.1021/acs.chemmater.3c01436⟩. ⟨hal-04274274⟩

  • Thèse

Conception raisonnée de catalyseurs bifonctionnels : élaboration de catalyseurs Pt0/zéolithe-Alumine, Rational design of bifunctional catalysts : development of Pt0/zeolithe-alumina catalysts

Olfa Ben Moussa

Les catalyseurs bifonctionnels pour l’hydrocraquage nécessitent à la fois des sites acides de Brønsted et des sites métalliques. L’intimité entre sites acides et sites métalliques peut donc influer sur l’activité et la sélectivité de la réaction. Nous nous sommes proposés d’explorer l’effet de la…, Bifunctional hydrocracking catalysts require both Brønsted acid sites and metal sites. Hence, the intimacy between acid sites and metal sites can influence the activity and selectivity of the reaction. We intended to explore the effect of metal sites-acid sites distance on the conversion of n-…

Chimie-Physique [physics.chem-ph]. Université Pierre et Marie Curie - Paris VI, 2016. Français. ⟨NNT : 2016PA066700⟩. ⟨tel-01629059⟩

  • Article dans une revue

Using Prussian blue analogue nanoparticles confined into ordered mesoporous silica monoliths as precursors of oxides

Virgile Trannoy, Émilie Delahaye, Giulia Fornasieri, Patricia Beaunier, Anne Bleuzen

Powdered Prussian blue analogues (PBAs) and PBAs confined in ordered mesoporous silica monoliths were used as oxide precursors through thermal treatment under an oxidizing atmosphere. The study focuses on the transformation of the alkali cation-free CoCo PBA of chemical formula K0.1CoII4[CoIII(CN)6…

Comptes Rendus. Chimie, 2014, 17 (6), pp.512-520. ⟨10.1016/j.crci.2014.02.001⟩. ⟨hal-01078316⟩

  • Thèse

Preparation of amorphous silica-aluminas with enhanced acidic properties and spectroscopic identification of their acid sites, Préparation de silice-alumines amorphes avec des propriétés acides améliorées et identification spectroscopique de leurs sites acides

Xiaojing Jin

ASAs with enhanced acidity and a higher fraction of acidic Al were prepared by two experimental strategies. Their textures have been investigated by N2 adsorption–desorption and their acidic properties by FTIR of adsorbed probe molecule (pyridine or CO). Besides, isomerization of 33DMB1 was…, Des silice-alumines (SA) avec des propriétés acides améliorées et une fraction plus élevée d’aluminium acides ont été préparées en utilisant deux stratégies de synthèse. Leurs propriétés texturales ont été étudiées par physisorption de N2 et leurs propriétés acides par suivi FTIR de l’adsorption de…

Catalysis. Université Pierre et Marie Curie - Paris VI, 2017. English. ⟨NNT : 2017PA066355⟩. ⟨tel-02334604⟩

  • Article dans une revue

Identification and Distribution of Surface Ions in Low Coordination of CaO Powders with Photoluminescence Spectroscopy

Hugo Petitjean, Jean-Marc Krafft, Michel Che, Helene Lauron-Pernot, Guylene Costentin

Oxide ions in low coordination (O-LC(2-)) Play a major role in adsorption and catalysis properties of CaO powders. They also give specific photoluminescence features that could be used to characterize the distribution of these ions at the molecular level, but up to now, the photoluminescence of…

Journal of Physical Chemistry C, 2011, 115 (3), pp.751-756. ⟨10.1021/jp110193k⟩. ⟨hal-00602946⟩

  • Article dans une revue

The role of organic additives in the synthesis of mesoporous aluminas and Ni/mesoporous alumina catalysts

Faiza Bentaleb, Eric Marceau

Mesoporous aluminas can be prepd. using org. additives as porogens even if these are not surfactants, as is the case for glucose. It is shown here that porosity arises from glucose entrapped in the material pptd. at the beginning of the synthesis, and subsequently caramelized. After impregnation by…

Studies in Surface Science and Catalysis, 2010, 175 (Scientific Bases for the Preparation of Heterogeneous Catalysts), pp.311-314. ⟨hal-00604700⟩

  • Article dans une revue

In Vitro Cytotoxicity and Transforming Potential of Industrial Carbon Dust (Fibers and Particles) in Syrian Hamster Embryo (SHE) Cells

C. Darne, F. Terzetti, C. Coulais, Jeanine Fournier, Y. Guichard, L. Gate, S. Binet

Carbon fibers have many applications, mainly in high-tech industries such as the aviation industry. Eleven carbon samples (fibers and particles) coming from an aeronautic group were tested for their cytotoxicity and carcinogenic potential using in vitro short-term assays in Syrian hamster embryo…

Annals of Occupational Hygiene, 2010, 54 (5), pp.532-544. ⟨10.1093/annhyg/meq012⟩. ⟨hal-00604711⟩

  • Article dans une revue

Effect of postsynthesis preparation procedure on the state of copper in CuBEA zeolites and its catalytic properties in SCR of NO with NH3

Rafal Baran, Frederic Averseng, Dominik Wierzbicki, Karolina Chalupka, Jean-Marc Krafft, Teresa Grzybek, Stanislaw Dzwigaj

Copper-containing BEA zeolites, Cu2.0SiBEA and Cu2.0HAlBEA, with 2 wt % of Cu were prepared by a two-step postsynthesis method and a conventional wet impregnation, respectively. These zeolites were characterized by XRD, DR UV–vis, EPR, FTIR and TPR physicochemical techniques. The incorporation of…

Applied Catalysis A : General, 2016, 523 pp.332-342. ⟨10.1016/j.apcata.2016.06.008⟩. ⟨hal-01329581⟩