A5000240639- Zeolite Catalysis and Synthesis
- Catalysis and Hydrodesulfurization Studies
- Metal-Organic Frameworks: Synthesis and Applications
- Catalytic Processes in Materials Science
- X-ray Diffraction in Crystallography
- Mesoporous Materials and Catalysis
- Gas Sensing Nanomaterials and Sensors
- Advanced Chemical Sensor Technologies
- Crystallization and Solubility Studies
- Nanomaterials for catalytic reactions
- Analytical Chemistry and Sensors
- Conducting polymers and applications
- Electrochemical sensors and biosensors
- Chemical Synthesis and Characterization
- Covalent Organic Framework Applications
- Catalysis for Biomass Conversion
- Advanced Photocatalysis Techniques
- ZnO doping and properties
- Crystallography and molecular interactions
- Thermal and Kinetic Analysis
- Hydrogen Storage and Materials
- Membrane Separation and Gas Transport
- Carbon Dioxide Capture Technologies
- Polyoxometalates: Synthesis and Applications
- Ammonia Synthesis and Nitrogen Reduction
Laboratoire Interdisciplinaire Carnot de Bourgogne
2015-2024
Université de Bourgogne
2015-2024
Centre National de la Recherche Scientifique
2015-2024
Université Bourgogne Franche-Comté
2015-2020
Maison des Sciences de l’Homme de Dijon
2015-2020
Institut de Chimie Moléculaire de l'Université de Bourgogne
2012
Laboratoire de Chimie Physique
2012
Institut de Chimie
2012
European Synchrotron Radiation Facility
2009
Laboratoire de Réactivité et Chimie des Solides
2006
Abstract Pd@PPy hybrid catalytic materials are synthesized in water via redox polymerization reaction of pyrrole with [Pd(NH 3 ) 4 Cl 2 ]. The nanocomposites formed composed highly dispersed palladium particles which either zerovalent or easily reducible, and embedded spherical polypyrrole globules. A unique combination high dispersion (NP size: 2.4 nm) elevated content (35 wt%) is obtained. components these novel characterized by means FTIR, XPS, XRD, SEM, TEM microscopy techniques. process...
The zwitterionic bipyridinium carboxylate ligand 1-(4-carboxyphenyl)-4,4′-bipyridinium (hpc1) in the presence of 1,4-benzenedicarboxylate anions (BDC2–) and Zn2+ ions affords three porous coordination polymers (PCPs): [Zn5(hpc1)2(BDC)4(HCO2)2]·2DMF·EtOH·H2O (1), [Zn3(hpc1)(BDC)2(HCO2)(OH)(H2O)]·DMF·EtOH·H2O (2), [Zn10(hpc1)4(BDC)7(HCO2)2(OH)4(EtOH)2]·3DMF·3H2O (3), with formate resulting from situ decomposition dimethylformamide (DMF) solvent molecules. 1 3 are photo- thermochromic, turning...
In this work, a simple non-template one-step method for the synthesis of 2.0−2.5 nm palladium nanoparticles encapsulated into polypyrrole shell via direct redox reaction between palladium(II) acetate and pyrrole in acetonitrile medium is described. Palladium are found to be able self-organize spherical Pd/PPy composites. The size composite particles Pd content depend strongly on concentration salt component. combination elemental CHNS thermogravimetric (TGA) analysis was used determine high...
In this work, composite core–shell ZnO/TiO<sub>2</sub> materials were fabricated by deposition of TiO<sub>2</sub> layers <italic>via</italic> sol–gel method on ZnO nanorods hydrothermally grown ITO electrode.
The “water–silicalite-1” system is known to act as a molecular spring. successive intrusion–extrusion cycles of liquid water in small crystallites (6 × 3 0.5 μm3) hydrophobic silicalite-1 were studied by volumetric and calorimetric techniques. experiments displayed decrease the intrusion pressure between first cycle consecutive ones, whereas extrusion pressures remained unchanged. However, neither XRD studies nor SEM observations revealed any structural morphological modifications at...
We report a structural and thermodynamic investigation of the phase behavior Ga(OH,F)-MIL-53, gallium-based metal–organic framework (MOF) having MIL-53 topology containing 0.7 wt % fluorine bonded to metal. Despite some small differences, especially for hydrated form, overall physical chemistry Ga(OH,F)-MIL-53 is very similar standard free Ga-MIL-53 material. A combination in situ X-ray diffraction, Fourier transform infrared spectroscopy, differential scanning calorimetry, heat capacity...
Understanding the adsorption of water in metal–organic frameworks (MOF), and particularly soft porous crystals, is a crucial prerequisite before considering MOFs for industrial applications. We report here joint experimental theoretical study on behavior gallium-based breathing MOF, Ga-MIL-53, upon adsorption. By looking at energetics thermodynamics we demonstrate why it behaves differently from its sibling Al-MIL-53, showing different phase room temperature (a nonporous phase) presence...
Toluene is a major air pollutant emitted from painting and metal coating processes might have some health effects. Adsorption catalytic complete oxidation are promising ways to retain or convert toluene into harmless products. The present work aims develop bifunctional material which can be used as an adsorbent catalyst for low-temperature removal. Copper zeolites were obtained by exchanging the sodium in parent NaX zeolite with copper aqueous solutions of Cu(NO3)2∙2.5H2O. Several...
Abstract Manganese(IV) oxide was synthesized through crystallization in confined space by using the SBA‐15 silica support. The evolution of textural, morphological, structural, and redox properties manganese phase composites has been studied terms different parameters such as impregnation route, loading, activation temperature. High performances nanoscaled manganese(IV) for low‐temperature formaldehyde oxidation have obtained. optimization preparation enabled complete conversion at...
Breaking through the stoichiometry barrier: as diameter of silver particles is decreased below a critical size 32 nm, molar ratio aqueous Hg(II) to Ag(0) drastically increases beyond conventional Hg/Ag 0.5:1, leading hyperstoichiometry with maximum 1.125:1. Therein, around 99% initial retained rapidly form solid amalgam reduced mercury.
Here, we report ab-initio calculations developed with a twofold purpose: understand how adsorbed water molecules alter the infrared spectrum of metal-organic framework MIL-53(Al) and to investigate which are associated physico-chemical processes. The analyzed structures two anhydrous narrow (np⊘) large (lp⊘) pore forms hydrated form (np-H2O) MIL-53(Al). For these structures, determined their corresponding spectra (FTIR) identified vibrational modes dominant spectral lines. We show that...
The zwitterionic bipyridinium carboxylate ligand 1,1′-bis(4-carboxyphenyl)-4,4′-bipyridinium (pc1) in the presence of cadmium chloride affords novel porous coordination polymers (PCPs): [Cd4(pc1)3Cl6]·CdCl4·guest (1) crystallizing P3̅1c space group. In structure, [Cd4Cl6(CO2)6] building units are linked together by six pc1 ligands, leading to a 3D high-symmetrical network exhibiting hexagonal channels along c axis. walls this PCP consist cationic electron-acceptor units. 1 reversibly adsorbs...
Cisplatin (cis-diaminedichloroplatinum(II), CDDP) plays a crucial role in the treatment of various malignant tumors. However, its clinical efficacy and applicability are restricted by issues toxicity resistance. Here, for drug delivery purposes, outer surface MCM-41 mesoporous silica nanoparticles (MSNs) was functionalized with poly(ethylene glycol) (Mw = 10 000 g/mol) or low-molecular-weight 1800 branched polyethyleneimine (PEI). Given strong affinity sulfur platinum, thiol-functionalized...
Hierarchical beta zeolites obtained in the concentrated reaction mixtures (H2O/Si = 2.5) and micromesoporous materials synthesized using a dual-template approach from zeolite precursor were rigorously characterized tested sustainable environmentally friendly process of α-pinene oxide isomerization. The highest yield trans-carveol (42%) with chemopreventive activity mammary carcinogenesis was achieved over low crystalline by well-developed mesoporosity, an increased fraction weak-to-medium...
Sulfidation of pure and metal-doped ZnO nanostructure sorbents (M0.03Zn0.97O, M = Fe, Co, Ni, Cu) was studied in order to clarify the effect metal on transformation kinetics at 200−350 °C. The solids were prepared by coprecipitation from nitrate solution followed calcination 400 Reaction with H2S thermal gravimetric analysis (TGA) using a gas mixture containing 0.2 vol % equimolar H2−N2. It found that 350 °C TGA sulfidation profiles all samples are similar, interface reaction being main...