A5004247926- Zeolite Catalysis and Synthesis
- X-ray Diffraction in Crystallography
- Mesoporous Materials and Catalysis
- Metal-Organic Frameworks: Synthesis and Applications
- Crystallization and Solubility Studies
- Catalytic Processes in Materials Science
- Advanced Chemical Sensor Technologies
- Gas Sensing Nanomaterials and Sensors
- Covalent Organic Framework Applications
- Crystallography and molecular interactions
- Clay minerals and soil interactions
- Semiconductor materials and interfaces
- Catalysis and Oxidation Reactions
- Carbon Dioxide Capture Technologies
- Microfluidic and Capillary Electrophoresis Applications
- Analytical Chemistry and Sensors
- Thermal and Kinetic Analysis
- Global Maternal and Child Health
- Chemical Synthesis and Characterization
- Silicon and Solar Cell Technologies
- Mass Spectrometry Techniques and Applications
- Spectroscopy and Quantum Chemical Studies
- Silicon Nanostructures and Photoluminescence
- Analytical Chemistry and Chromatography
- Industrial Gas Emission Control
Université de Bourgogne
2013-2024
Laboratoire Interdisciplinaire Carnot de Bourgogne
2013-2024
Luxembourg Institute of Health
2022-2024
Centre National de la Recherche Scientifique
2012-2023
Université Bourgogne Franche-Comté
2017-2023
Maison des Sciences de l’Homme de Dijon
2017-2019
University of Luxembourg
2016
Université de Poitiers
2015
Laboratoire de Chimie Physique
2012
Commissariat à l'Énergie Atomique et aux Énergies Alternatives
2007
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...
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...
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...
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...
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...
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...
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...
Active films are produced by a grafting reaction based on the reactivity between chitosan amino groups and lignin hydroxyl groups. This opens new route for valorization of lignin, with possibility tuning anti-oxidant activity.
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...
Abstract Background Despite concerns about worsening pregnancy outcomes resulting from healthcare restrictions, economic difficulties and increased stress during the COVID-19 pandemic, preterm birth (PTB) rates declined in some countries 2020, while stillbirth appeared stable. Like other shocks, pandemic may have exacerbated existing socioeconomic disparities pregnancy, but this remains to be established. Our objective was investigate changes PTB by status (SES) European countries. Methods...
A mesoporous siliceous material of MCM-41 type was characterized by nitrogen adsorption, X-ray diffraction, and Fourier transform infrared spectroscopy. Its pore diameter, external internal surface, volume, wall thickness, density were determined. Special attention paid to sample aging its stability toward temperature, water vapor, mechanical compression, aiming at using this in industrial applications such as adsorption or catalysis. Calcined loses an important part mesoporosity during...
Hydrogen-bond assembly of tripod-like organic cations [H3 -MeTrip](3+) (1,2,3-tri(4'-pyridinium-oxyl)-2-methylpropane) and the hexa-anionic complex [Zr2 (oxalate)7 ](6-) leads to a structurally, thermally, chemically robust porous 3D supramolecular framework showing channels 1 nm in width. Permanent porosity has been ascertained by analyzing material at single-crystal level during sorption cycle. The crystal structure was found remain same for native compound, its activated phase, after...
The formation of η″Cu3Si precipitates on (100) and (111) silicon surfaces by reaction between cuprous chloride is studied. are found to be crystallized epitaxially onto the single crystal substrate have a geometrical pyramidal structure with square (on (100)Si surface) or triangular (111)Si shape basis plane. In both cases main growth direction 〈110〉. good epitaxial explained easy extraction atoms chlorine which facilitates nucleation at (111)SiCu3Si interface. On étudié la de précipités...
Stillbirth is a major public health problem, but measurement remains challenge even in high-income countries. We compared routine stillbirth statistics Europe reported by Eurostat with data from the Euro-Peristat research network.We used on stillbirths 2015 both sources for 31 European rates per 1000 total births were analyzed gestational age (GA) and birthweight groups. Information termination of pregnancy at ≥22 weeks' GA was separately.Routinely collected higher than those network. For...
We have investigated by in situ neutron diffraction the structural properties of C2HCl3, C2Cl4, and C6D6 sorbed phases silicalite-1. Our motivation is to correlate structure these three confined species fact that their adsorption isotherms are characterized no step, one two steps, respectively. From our detailed investigation, we deduce isotherm steps not signatures phase transitions but correlated different stages observed during silicalite-1 loading. For C6D6, such a loading stage process...