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  • Article dans une revue

Halide-free CO 2 cycloaddition onto styrene oxide catalysed by first row transition-metal derivatives of polyoxotungstates

Jingjing Ren, Franck Launay, Richard Villanneau, Anna Proust

Quaternary ammonium salts of metal derivatives of polyoxometalates [XW11O39M(H2O)]n- (X = P, Si; M = Cr, Mn, Co, Ni, Zn) were successfully tested instead of quaternary ammonium halides as catalysts in the cycloaddition of CO2 to styrene oxide. Remarkably, they gave very satisfactory yields of…

Chemical Communications, 2024, ⟨10.1039/D4CC00522H⟩. ⟨hal-04545491⟩

  • Article dans une revue

Advantages of Covalent Immobilization of Metal‐Salophen on Amino‐Functionalized Mesoporous Silica in Terms of Recycling and Catalytic Activity for CO 2 Cycloaddition onto Epoxides

Matthieu Balas, Sébastien Beaudoin, Anna Proust, Franck Launay, Richard Villanneau

NiII and MnIII Schiff base complexes (Salophen-Ni and Salophen-MnCl) bearing a pending carboxylic group were prepared and characterized. Both complexes were grafted onto a mesoporous amino-functionalized SBA-15 silica, by formation of an amide function between the propylamine groups of the support…

European Journal of Inorganic Chemistry, 2021, 2021 (16), pp.1581-1591. ⟨10.1002/ejic.202100150⟩. ⟨hal-03485785⟩

  • Article dans une revue

Homogeneous Supported Monolayer from Microbial Glycolipid Biosurfactant

Niki Baccile, Anyssa Derj, Cedric Boissiere, Vincent Humblot, Ariane Deniset-Besseau

The development of supported glycosylated lipid layers is an important trend in the field of glyconanomaterials for their interest in understanding sugar-sugar and protein-sugar interactions, these being at the core of cellular, bacterial or viral adhesion. The conventional self-assembled monolayer…

Journal of Molecular Liquids, 2022, 345 (117827), ⟨10.1016/j.molliq.2021.117827⟩. ⟨hal-03149331⟩

  • Article dans une revue

On the Comprehensive Precipitation of Hydroxyapatites Unraveled by a Combined Kinetic–Thermodynamic Approach

Corentin Reynaud, Cyril Thomas, Guylène Costentin

The present study combines experimental and theoretical approaches to investigate the competitive precipitation of calcium phosphates (CaPs) in aqueous solution in order to understand and control both the structural and textural properties of the synthesized hydroxyapatites (HAps). Some of the…

Inorganic Chemistry, 2022, 61 (7), pp.3296-3308. ⟨10.1021/acs.inorgchem.1c03884⟩. ⟨hal-03584442⟩

  • Article dans une revue

Dealuminated Beta Zeolite Modified by Alkaline Earth Metals

Karolina Chalupka, Renata Sadek, Laetitia Valentin, Yannick Millot, Christophe Calers, Magdalena Nowosielska, Jacek Rynkowski, Stanislaw Dzwigaj

Alkaline Earth metals (Mg, Sr, and Ca) were incorporated into the dealuminated mesoporous beta zeolite (DeAlBeta) by the two-step postsynthesis method. Physicochemical properties of both unmodified and alkaline Earth metal-modified DeAlBeta zeolite were characterized by XRD, DR UV-vis, FTIR, TPD of…

Journal of Chemistry , 2018, 2018, pp.1-11. ⟨10.1155/2018/7071524⟩. ⟨hal-03984227⟩

  • Article dans une revue

Particle Size Effects in the Selective Hydrogenation of Alkadienes over Supported Cu Nanoparticles

Giorgio Totarella, Jan Willem de Rijk, Laurent Delannoy, Petra de Jongh

Copper is considered an excellent alternative to noble-metal selective hydrogenation catalysts. Herein, we systematically studied the effect of Cu nanoparticle size (2-10 nm) in the selective hydrogenation of 1,3-butadiene in excess of propene. The catalysts exhibited particle size-dependent…

ChemCatChem, 2022, 14 (19), pp.e202200348. ⟨10.1002/cctc.202200348⟩. ⟨hal-04025498⟩

  • Article dans une revue

CO 2 methanation over LDH derived NiMgAl and NiMgAlFe oxides: Improving activity at lower temperatures via an ultrasound-assisted preparation

Michel Obeid, Christophe Poupin, Madona Labaki, Samer Aouad, Sharad Gupta, Haingomalala Lucette Tidahy, Aida Younis, Ferdaous Ben Romdhane, Eric Gaigneaux, Josefine Schnee, Edmond Abi-Aad, François Delattre

Within the idea to catalyze CO 2 methanation NiMgAl and NiMgAlFe oxides were synthesized by the layered double hydroxide route using co-precipitation and ultrasound-assisted co-precipitation. MgAl and MgAlFe oxides-supported Ni materials prepared by the impregnation method were used as references.…

Chemical Engineering Journal, 2023, 474, pp.145460. ⟨10.1016/j.cej.2023.145460⟩. ⟨hal-04212860⟩

  • Article dans une revue

Microstructural, morphological characterization and corrosion behavior of sand cast AlSi10Cu(Fe) alloy in chloride solution

Belkacem Korichi, Nacer Zazi, Stéphanie Delbrel, Kieu Ngo, Jean Paul Chopart

In order to examine the relationship between the microstructure and the corrosion behavior in chloride solution, the microstructure of AlSi10Cu (Fe) sand cast aluminum alloy has been investigated by using different techniques including scanning electron microscopy, energy-dispersive spectroscopy, X…

Chemical Papers, 2022, 76, pp.2947-2967. ⟨10.1007/s11696-022-02064-9⟩. ⟨hal-03597124⟩

  • Article dans une revue

Special Issue “Selected Papers from the 5nd Edition of Global Conference on Catalysis, Chemical Engineering and Technology (CAT 2019)”

Stanislaw Dzwigaj, Arthur Nozik

The present Special Issue concerns the papers which have been presented at the fifth edition of the Global Conference on Catalysis, Chemical Engineering & Technology (CAT 2019) that promote linkage of the catalytic science, engineering and technology [...]

Catalysts, 2021, 11 (1), pp.65. ⟨10.3390/catal11010065⟩. ⟨hal-03995332⟩

  • Article dans une revue

Hydrothermally stable Pd/SiO2@Zr Core@Shell catalysts for diesel oxidation applications

Chih-Han Liu, Junjie Chen, Todd Toops, Jae-Soon Choi, Cyril Thomas, Michael Lance, Eleni Kyriakidou

Hydrothermally stable diesel oxidation catalysts (DOCs) with improved low-temperature activity are desired for the abatement of emissions from diesel vehicles. Herein, novel palladium(Pd)/SiO2(core)@Zr(shell) structured DOCs were developed. SiO2 was completely covered by an 8.4 nm thickness Zr-…

Chemical Engineering Journal, 2021, 425, pp.130637. ⟨10.1016/j.cej.2021.130637⟩. ⟨hal-03343231⟩