88 research outputs found
Développement de matériaux absorbants utilisant le chitosane et la cellulose phosphorylée pour l'élimination des contaminants toxiques des eaux usées = Development of sorbent materials using chitosan and phosphorylated cellulose for the removal of toxic contaminants from wastewater
From ZIF-8@Al2O3Composites to Self-Supported ZIF-8 One-Dimensional Superstructures
Efficient preparation of composite materials consisting of ZIF-8 nanocrystals embedded inside the channels of macroporous anodic aluminum oxide membranes is reported. 1-D self-supported ZIF-8 superstructures are recovered through matrix dissolution
Here’s looking at the reduction of noninnocent copper corroles via anion induced electron transfer
The synthesis, electrochemical and spectroscopic characterization of five copper triarylcorroles bearing one, two or three meso-nitroaryl substituents is reported. Redox potentials and spectroscopic properties of the neutral Cu(II) corrole cation radicals and singly reduced form of the complexes are reported in and the ability of the initial noninnocent derivatives to be chemically reduced via anion induced electron transfer (AIET) is explored using cyanide () or fluoride () anions in the form of tetra--butylammonium salts. UV–visible spectra of the singly reduced corroles and the species generated after addition of or to solutions of the neutral compounds are identical, thus confirming the AIET event in these systems. This result, when combined with the facile electrochemical reduction, provides strong indirect evidence for the presence of noninnocence in these systems
Here’s looking at the reduction of noninnocent copper corroles <i>via</i> anion induced electron transfer
La délégation scandinave à l'université de Paris
Brandès Georges, Liard Louis. La délégation scandinave à l'université de Paris. In: Revue internationale de l'enseignement, tome 48, Juillet-Décembre 1904. pp. 503-507
Exceptional affinity of nanostructured organic-inorganic hybrid materials towards dioxygen: confinement effect of copper complexes
International audienc
Porous materials applied to biomarker sensing in exhaled breath for monitoring and detecting non-invasive pathologies
International audienceOverview of the use of porous materials for gas sensing to analyze the exhaled breath of patients for disease identification.The quantification of specific gases among thousand of VOCs (Volatile Organic Compounds) present in the human breath at the ppm/ppb level can be used to evidence the presence of diseases in the human body. The detection of these biomarkers in human exhaled breath through a noninvasive approach is an important field of research which is still attracting important attention to this day. A portable device working at room temperature and usable directly on exhaled breath samples is still a challenge requiring a sensing material with high performances. The rich composition of the human breath implies that the sensing material must be highly selective and sensitive (ppm/ppb) in high relative humidity (RH) conditions and preferably at room temperature. The present work intends to provide a review on recent works in this application field through the use of porous materials and discuss the interest of Metal Organic Frameworks (MOFs) for such application. MOFs are highly porous crystalline materials often used for gas detection and capture, thus raising the question of their potential for detection in exhaled breath
Selective chemisorption of carbon monoxide by organic-inorganic hybrid materials incorporating cobalt(III) corroles as sensing components
International audienc
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