Laboratoire de réactivité de surface

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  • Article dans une revue

Catalytic properties of AgAlBEA and AgSiBEA zeolites in H2-promoted selective reduction of NO with ethanol

Nataliia Popovych, Pavlo Kyriienko, Sergiy Soloviev, Svitlana Orlyk, Stanislaw Dzwigaj

Physicochemical properties of AgAlBEA and AgSiBEA zeolites were investigated by IR spectroscopy with pyridine, H2-TPR, XPS and diffuse reflectance UV–vis spectroscopy. Their catalytic properties were studied in the process of selective reduction of NO with ethanol and in the presence of hydrogen in…

Microporous and Mesoporous Materials, 2015, 203, pp.163-169. ⟨10.1016/j.micromeso.2014.10.037⟩. ⟨hal-01128209⟩

  • Article dans une revue

Life on Minerals: Binding Behaviors of Oligonucleotides on Zirconium Silicate and its Inhibitory Activity for the Self-Cleavage of Hammerhead Ribozyme

Kunio Kawamura, Jean-François Lambert, Louis Ter-Ovanessian, Jacques Vergne, Guy Hervé, Marie-Christine Maurel

The role of minerals in the chemical evolution of RNA molecules is an important issue when considering the early stage of the Hadean Earth. In particular, the interaction between functional ribozymes and ancient minerals under simulated primitive conditions is a recent research focus. We are…

Life, 2022, The Origin and Early Evolution of Life: Prebiotic Systems Chemistry Perspective, 12 (11), pp.1689. ⟨10.3390/life12111689⟩. ⟨hal-03828234⟩

  • Article dans une revue

Single-site and nano-confined photocatalysts designed in porous materials for environmental uses and solar fuels

Hiromi Yamashita, Kohsuke Mori, Yasutaka Kuwahara, Takashi Kamegawa, Meicheng Wen, Priyanka Verma, Michel Che

Silica-based micro-, meso-, macro-porous materials offer attractive routes for designing single-site photocatalysts, supporting semiconducting nanoparticles, anchoring light-responsive metal complexes, and encapsulating metal nanoparticles to drive photochemical reactions by taking advantage of…

Chemical Society Reviews, 2018, 47 (22), pp.8072-8096. ⟨hal-01959036⟩

  • Article dans une revue

Simple Fabrication of ϵ‐Fe2O3 Nanoparticles Containing Silica Monoliths with Enhanced Coercivity

Laura Altenschmidt, Patricia Beaunier, Amélie Bordage, Eric Rivière, Giulia Fornasieri, Anne Bleuzen

Most of large-size permanent room-temperature hard magnets contain rare-earth elements. Here, we present the preparation of a large-size rare-earth free hard magnet based on the loading of the ordered mesoporosity of a preformed ordered mesoporous silica monolith obtained by a sol-gel route with…

ChemNanoMat, 2023, 9 (2), pp.e202200469. ⟨10.1002/cnma.202200469⟩. ⟨hal-04030789⟩

  • Article dans une revue

Tuning Surface Chirality of Adsorbed Gly-Pro Dipeptide/Cu(110) by Changing its Chemical Form via Electrospray Deposition.

Christophe Méthivier, Hervé Cruguel, Dominique Costa, Claire-Marie Pradier, Vincent Humblot

By changing the Ultra High Vacuum (UHV) deposition method, classical sublimation versus electrospray ionization, one can tune the chemistry of a chiral dipeptide molecule (Gly-Pro, GP), when adsorbed on a Cu(110) surface, from anionic to zwitterionic, respectively. This chemical shift will…

Langmuir, 2016, 32 (51), pp.13759-13763. ⟨10.1021/acs.langmuir.6b03553⟩. ⟨hal-01401619⟩

  • Article dans une revue

Hybrid phase 1T/2H-MoS 2 with controllable 1T concentration and its promoted hydrogen evolution reaction

Yuxiao Zhang, Yasutaka Kuwahara, Kohsuke Mori, Catherine Louis, Hiromi Yamashita

1T concentration controllable 1T/2H-MoS 2 with enhanced electrochemical hydrogen evolution reaction performance has been synthesized.

Nanoscale, 2020, 12 (22), pp.11908-11915. ⟨10.1039/D0NR02525A⟩. ⟨hal-03995334⟩

  • Article dans une revue

Polyethylene glycol Gold-Nanoparticles: Facile Nanostructuration of Doxorubicin and its complex with DNA molecules for SERS detection

Jolanda Spadavecchia, Ramesh Perumal, Sandra Casale, Jean-Marc Krafft, Christophe Methivier, Claire-Marie Pradier

We report the synthesis of dicarboxylic acid-terminated polyethylene-glycol (PEG)-gold nanoparticles by a simple one-step method, and their further use to form nanostructured surfaces for biomolecule immobilization. The synthesized nano-scale particles were conjugated with probe/target…

Chemical Physics Letters, 2016, 648, pp.182-188. ⟨10.1016/j.cplett.2015.08.038⟩. ⟨hal-01196383⟩

  • Article dans une revue

Kinetic Model of Energy Transfer Processes Between Low-Coordinated Ions on MgO by Photoluminescence Decay Measurements

Céline Chizallet, Guylène Costentin, Jean-Marc Krafft, Hélène Pernot, Michel Che

Photoluminescence decay studies of emitting species on MgO nanocubes at room temperature provide evidence of three sur- face species characterized by an excitation and emission wave- length couple {l exc ;l em }.Species A corresponds to {l exc =240 nm; l em =380 nm},whereas the couple {l exc =280…

ChemPhysChem, 2006, 7, pp.904. ⟨10.1002/cphc.200500580⟩. ⟨hal-00023604⟩

  • Article dans une revue

Low Temperature NOx Adsorption Study on Pd-Promoted Zeolites

Alessandro Porta, Tommaso Pellegrinelli, Lidia Castoldi, Roberto Matarrese, Sara Morandi, Stanislaw Dzwigaj, Luca Lietti

In this study Pd-promoted zeolites (BEA, FER, MFI and MOR) are synthesized and investigated for potential use in the low-temperature NOx adsorption. The catalysts are characterized by BET, XRD, UV–Vis and XRF, while the adsorption/desorption characteristics of the samples are investigated by NOx…

Topics in Catalysis, 2018, 61 (18-19), pp.2021-2034. ⟨10.1007/s11244-018-1045-8⟩. ⟨hal-03993564⟩

  • Article dans une revue

Photoelectrochemical properties of ZnS- and CdS-TiO 2 nanostructured photocatalysts: Aqueous sulfidation as a smart route to improve catalyst stability

Samiha Chaguetmi, Larissa Chaperman, Sophie Nowak, Delphine Schaming, Stephanie Lau-Truong, Philippe Decorse, Patricia Beaunier, Cyrille Costentin, Fayna Mammeri, Slimane Achour, Souad Ammar

ZnS- and CdS-TiO2 hetero-nanostructures were synthesized by impregnation of polyol-made ZnS, CdS quantum dots (QDs) on the surface of TiO2 nanofibers that were grown on Ti sheets by controlled corrosion. Due to their finite size, the grafted QDs were partly oxidized, when air exposed, reducing…

Journal of Photochemistry and Photobiology A: Chemistry, 2018, 356, pp.489 - 501. ⟨10.1016/j.jphotochem.2018.01.038⟩. ⟨hal-01741065⟩