• Poster de conférence

Nanostructure Characterization of Carbide-derived Carbons by Morphological Analysis of Transmission Electron Microscopy Images Combined with Physisorption and Raman Spectroscopy

Martin Oschatz, Pascaline Pre, Patricia Beaunier, Stefan Kaskel, Nickel Wielfried

11th international Symposium on the characterization of porous solids COPS XI, May 2017, Avignon, France. ⟨hal-02881501⟩

• Article dans une revue

Corrigendum: Silica-Supported Au-Ag Catalysts for the Selective Hydrogenation of Butadiene

Nazila Masoud, Laurent Delannoy, Christophe Calers, Jean-Jacques Gallet, Fabrice Bournel, Krijn de Jong, Catherine Louis, Petra de Jongh

ChemCatChem, 2017, 9 (20), pp.4013-4013. ⟨10.1002/cctc.201701445⟩. ⟨hal-03884393⟩

• Article dans une revue

Selective uptake of alkaline earth metals by cyanobacteria forming intracellular carbonates

Nithavong Cam, Karim Benzerara, Thomas Georgelin, Maguy Jaber, Jean-Francois Lambert, Melanie Poinsot, Feriel Skouri-Panet, Laure Cordier

The uptakes of Ca, Sr and Ba by two cyanobacterial strains, Cyanothece sp. PCC7425 and Gloeomargarita lithophora, both forming intracellular carbonates, were investigated in laboratory cultures. In the culture medium BG 11 amended with 250 μM of Ca and 50 or 250 μM of Sr and Ba, G. lithophora…

Environmental Science and Technology, 2016, 50 (21), pp.11654-11662. ⟨10.1021/acs.est.6b02872⟩. ⟨hal-01383264⟩

• Article dans une revue

In vitro synthesis of amorphous Mg-, Ca-, Sr- and Ba-carbonates: what do we learn about intracellular calcification by cyanobacteria?

Nithavong Cam, Thomas Georgelin, Maguy Jaber, Jean-François Lambert, Karim Benzerara

Some cyanobacteria, including Candidatus Gloeomargarita lithophora, which was isolated from Lake Alchichica (Mexico), can form intracellular carbonates. This contradicts the common paradigm that cyanobacterial calcification is always extracellular and suggests that calcification might be controlled…

Geochimica et Cosmochimica Acta, 2015, 161, pp.36-49. ⟨10.1016/j.gca.2015.04.003⟩. ⟨hal-01147190⟩

• Article dans une revue

Orange Carotenoid Protein in Mesoporous Silica: A New System towards the Development of Colorimetric and Fluorescent Sensors for pH and Temperature

Silvia Leccese, Andrea Calcinoni, Adjélé Wilson, Diana Kirilovsky, Donatella Carbonera, Thomas Onfroy, Claude Jolivalt, Alberto Mezzetti

Orange carotenoid protein (OCP) is a photochromic carotenoprotein involved in the photoprotection of cyanobacteria. It is activated by blue-green light to a red form OCPR capable of dissipating the excess of energy of the cyanobacterial photosynthetic light-harvesting systems. Activation to OCPR…

Micromachines, 2023, 14 (10), pp.1871. ⟨10.3390/mi14101871⟩. ⟨hal-04229121⟩

• Article dans une revue

Influence of natural adsorbates of magnesium oxide on its reactivity in basic catalysis

Damien Cornu, Hugo Petitjean, Guylène Costentin, Hazar Guesmi, Jean-Marc Krafft, Hélène Lauron-Pernot

Solid materials possessing basic properties are naturally covered by carbonates and hydroxyl groups. Those natural adsorbates modify their chemical reactivity. This article aims to specifically evidence the role of surface carbonates and hydroxyls in basic heterogeneous catalysis on MgO. It…

Physical Chemistry Chemical Physics, 2013, 15 (45), pp.19870-19878. ⟨10.1039/C3CP53624F⟩. ⟨hal-00911519⟩

• Article dans une revue

Influence of acid–base properties of Mg-based catalysts on transesterification: role of magnesium silicate hydrate formation

Damien Cornu, Longfei Lin, Maya Mounir Daou, Maguy Jaber, Jean-Marc Krafft, Virginie Herledan, Guillaume Laugel, Yannick Millot, Hélène Lauron-Pernot

The transesterification reaction assisted through heterogeneous basic catalysis was thoroughly studied because of its importance in transforming biomass, as for biodiesel production or lactone opening. As catalysts with the strongest basic properties are not always the most efficient ones, a series…

Catalysis science and Technology, 2017, 7 (8), pp.1701-1712. ⟨10.1039/C6CY02604D⟩. ⟨hal-01547299⟩

• Article dans une revue

Investigating nalidixic acid adsorption onto ferrihydrite and maghemite surfaces: molecular-level insights <i>via</i> continuous-flow ATR-FTIR spectroscopy

Ana C Schuh Frantz, Alberto Mezzetti, Ari Paavo Seitsonen, Sylvie Nelieu, Etienne Balan, Guillaume Morin, Xavier Carrier

Contaminants sequestration by iron oxides are of particular relevance in environmental chemistry and Fourier Transform Infrared (FTIR) Spectroscopy in Attenuated Total Reflectance (ATR) mode is used in this study to investigate the molecular-scale adsorption mechanism of the antibiotic nalidixic…

• Article dans une revue

Surface Science Approach to the Solid-Liquid Interface: Surface-Dependent Precipitation of Ni(OH)2 on a-Al2O3 Surfaces

Asma Tougerti, Isabelle Llorens, Francesco d'Acapito, Emiliano Fonda, Jean-Louis Hazemann, Yves Joly, Dominique Thiaudi Ère, Michel Che, Xavier Carrier

A molecular-scale understanding of the adsorption of metal ions on oxide surfaces is of fundamental importance for various scientific areas where the oxide/water interface plays a central role, such as corrosion science, preparation of heterogeneous catalysts, transport of contaminants in the…

Angewandte Chemie International Edition, 2012, 51, pp.7697-7701. ⟨10.1002/anie.201201349⟩. ⟨hal-00749941⟩

• Article dans une revue

Surface orientation dependent interaction of cobalt (II) precursors with alpha-alumina

Céline Chizallet, Christian Schlaup, Emiliano Fonda, Xavier Carrier

The performances of alumina-supported cobalt catalysts strongly depend on Co/alumina interactions, that are poorly understood. In the present work, α-alumina surfaces are used as models of polycrystalline support, to unravel their orientation dependent behavior by GI-EXAFS. The CoII/α-alumina…

Journal of Catalysis, 2021, 394, pp.157-166. ⟨10.1016/j.jcat.2020.10.025⟩. ⟨hal-03176305⟩