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  • Article dans une revue

Effect of dealumination on the catalytic performance of Cr-containing Beta zeolite in carbon dioxide assisted propane dehydrogenation

Piotr Michorczyk, Kamila Zeńczak-Tomera, Barbara Michorczyk, Adam Węgrzyniak, Marcelina Basta, Yannick Millot, Laetitia Valentin, Stanislaw Dzwigaj

New active and selective catalysts for propane to propene dehydrogenation in assistance of CO 2 (CO 2-PDH) were prepared by chromium incorporation in siliceous SiBeta. The Cr-containing SiBeta zeolite catalysts were obtained by two-step postsynthesis preparation procedure which consist, in the…

Journal of CO2 Utilization, 2020, 36, pp.54-63. ⟨10.1016/j.jcou.2019.09.018⟩. ⟨hal-02473183⟩

  • Article dans une revue

Vanadium incorporation from aqueous NH4VO3 solution into siliceous Beta zeolite determined by NMR with formation of V-single site zeolite catalysts for application in SCR of NO

Rafal Baran, Yannick Millot, Frederic Averseng, Stanislaw Dzwigaj

The speciation of vanadium in initial aqueous NH4VO3 solutions as a function of pH and concentration, in supernatant and in wet solids were investigated by 51V static and MAS NMR. Two series of VSiBeta zeolite catalysts were prepared by a two-step postsynthesis procedure at pH = 2.5 and 6. 51V…

Applied Catalysis A : General, 2020, 606, pp.117830. ⟨10.1016/j.apcata.2020.117830⟩. ⟨hal-02996490⟩

  • Article dans une revue

Discrimination of Surface and Bulk Structure of Crystalline Hydroxyapatite Nanoparticles by NMR

Manel Ben Osman, Sarah Diallo-Garcia, Virginie Herledan, Dalil Brouri, Tetsuya Yoshioka, Jun Kubo, Yannick Millot, Guylène Costentin

Solid state 1H and 31P NMR spectroscopy was used to characterize well-crystallized hydroxyapatite samples of different stoichiometry prepared by a precipitation route. The aim of the paper was to investigate the bulk structural features of samples with different stoichiometry and to discriminate…

Journal of Physical Chemistry C, 2015, 119 (40), pp.23008-23020. ⟨10.1021/acs.jpcc.5b08732⟩. ⟨hal-01212297⟩

  • Article dans une revue

Relevant parameters for obtaining high-surface area materials by delamination of magadiite, a layered sodium silicate

Yunfei Bi, Jean-François Lambert, Yannick Millot, Sandra Casale, Juliette Blanchard, Shuangqin Zeng, Hong Nie, Dadong Li

Layered silicates can be used for the preparation of high surface area materials by intercalation with organic cations followed by ultrasonication. The relevant parameters for delamination (exfoliation) of cetyltrimethylammonium bromide exchange magadiite are investigated. Using a magadiite wet…

Journal of Materials Chemistry, 2011, 21, pp.18403-18411. ⟨10.1039/C1JM13108G⟩. ⟨hal-00668932⟩

  • Article dans une revue

Deciphering the improvement in (H2-)C3H6-SCR performance of Ag/Al2O3 catalysts prepared from warm-water-treated alumina: A NMR-assisted identification of the Ag anchoring sites of the alumina support

Yannick Millot, Guylène Costentin, Clémence Rodigue, Thomas Onfroy, Cyril Thomas

Lean exhausts aftertreatment has been the subject of numerous investigations due to ever stringent regulations on pollutants emissions such as that of NOx. Among aftertreatment technologies, the selective catalytic reduction of NOx by the hydrocarbons (HC-SCR) has been studied intensively, in…

Applied Catalysis B: Environmental, 2024, 351, pp.123975. ⟨10.1016/j.apcatb.2024.123975⟩. ⟨hal-04529323⟩

  • Article dans une revue

Design and Optimization of a Magneto-Plasmonic Sandwich Biosensor for Integration within Microfluidic Devices

Mona Soroush, Walid Ait Ait Mammar, Axel Wilson, Hedayatollah Ghourchian, Michèle Salmain, Souhir Boujday

We designed a magneto-plasmonic biosensor for the immunodetection of antigens in minute sample volume. Both spherical gold nanoparticles (AuNP) and magnetic beads (MB) were conjugated to goat anti-rabbit IgG antibody (Ab) capable of recognizing a model target, rabbit IgG (rIgG). The AuNP…

Biosensors, 2022, 12 (10), pp.799. ⟨10.3390/bios12100799⟩. ⟨hal-03814285⟩

  • Article dans une revue

Oxidation of laccase for improved cathode biofuel cells performances

Meihui Zheng, Sophie Griveau, Christine Dupont-Gillain, Michel J Genet, Claude Jolivalt

Graphite rods were modified by substituted aryldiazonium salts allowing subsequent laccase immobilisation and direct electron transfer at the cathode. Two covalent enzyme immobilisation methods were performed with carboxy and amino substituted grafted groups, either via the formation of an amide…

Bioelectrochemistry, 2015, 106 (Part A), pp.77-87. ⟨10.1016/j.bioelechem.2015.06.004⟩. ⟨hal-01172482⟩

  • Article dans une revue

Influence of the grafting process on the orientation and the reactivity of azide-terminated monolayers onto silica surface

Nisreen Al-Hajj, Yannick Mousli, Antoine Miche, Vincent Humblot, Julien Hunel, Karine Heuze, Thierry Buffeteau, Emilie Genin, Luc Vellutini

Click chemistry is widely used in materials and surface science for its high efficiency, ease of use and high yields. Azide-terminated SAMs have been prepared successfully by using three different deposition methods (postfunctionalization and direct grafting by immersion as well as spin coating).…

Applied Surface Science, 2020, 527, pp.146778. ⟨10.1016/j.apsusc.2020.146778⟩. ⟨hal-03007686v2⟩

  • Article dans une revue

Gold Nanorod Coating with Silica Shells Having Controlled Thickness and Oriented Porosity: Tailoring the Shells for Biosensing

Vincent Pellas, Juliette Blanchard, Clément Guibert, Jean-Marc Krafft, Antoine Miche, Michèle Salmain, Souhir Boujday

The coating of gold nanorods with a silica shell (AuNR@SiO2) is an effective way to extend their use in a wide variety of biomedical applications. A silica shell offers numerous advantages as it provides more stability, frees the surface from toxic cetyltrimethylammonium bromide (CTAB), and…

ACS Applied Nano Materials, 2021, 4 (9), pp.9842-9854. ⟨10.1021/acsanm.1c02297⟩. ⟨hal-03431921⟩

  • Article dans une revue

Ready-to-be-addressed oxo-clusters: individualized, periodically organized and separated from the substrate

Juba Salhi, Jan Patrick Calupitan, Michele Mattera, David Montero, Antoine Miche, Régina Maruchenko, Anna Proust, Guillaume Izzet, David Kreher, Imad Arfaoui, Florence Volatron

The first periodically organized individual polyoxometalates: from long-scale range to single-molecule level characterizations.

Nanoscale, 2023, 32, ⟨10.1039/d3nr02649c⟩. ⟨hal-04180597⟩