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References

2016

Articles:

Turgis, R., Arrachart, G., Dubois, V., Dourdain, S., Virieux, D., Michel, S., Legeai, S., Lejeune, M., Draye, M. and Pellet-Rostaing, S.
Dalton Transactions, 45(Copyright (C) 2016 American Chemical Society (ACS). All Rights Reserved.):1259-1268
2016

Resume: The extn. of rare earth elements (REEs) from nitric acid soln. with a triphosphine trioxide (TPO) is presented. Performances of such a ligand in ionic liqs. vs. a classical solvent (benzyl ether) are compared. TPO seems to be 10 to 100 times more efficient when it is dissolved in ionic media whatever the concn. of nitric acid involved. Mechanistic investigations reveal that cation exchange classically obsd. in ionic liqs. is not consistent with the exptl. data. Moreover, clear differences in the TPO/Ln complexes between classical and ionic media are highlighted. A stable complex of 1 lanthanide for 3 TPO is formed in an ionic liq. whereas a complex of 1 lanthanide for 6 to 9 TPO is formed in benzyl ether. Back extn. is also studied and good recovery of REEs could be obtained. The TPO/ionic liq. system shows remarkable performances i.e. efficiency and selectivity towards lanthanides in a simulated leaching soln. of a Nd/Fe/B/Dy magnet. [on SciFinder(R)]

Equipe: Département CP2S : Chimie et électrochimie des matériaux

2015

Articles:

Hazotte, Claire, Leclerc, Nathalie, Diliberto, Sébastien, Meux, Eric and Lapicque, Francois
Environmental Technology, 36(6):796-805
2015

Resume: The aim of this paper is the characterization of spent NiCd batteries and the characterization of an industrial Black Mass obtained after crushing spent NiCd batteries and physical separation in a treatment plant. The characterization was first performed with five cylindrical NiCd batteries which were manually dismantled. Their characterization includes mass balance of the components, active powders elemental analysis and phase identification by X-ray powder diffraction. Chemical speciation of the two metals was also investigated. For cadmium, speciation was previously developed on solid synthetic samples. In a spent battery, the active powders correspond to about 43% of the battery weight. The other components are the separator and polymeric pieces (5%), the support plates (25%) and the carbon steel external case (27%). The sequential procedure shows that the nickel in the positive powders from the dismantled Ni?Cd batteries is distributed between Ni0 (39.7%), Ni(OH)2 (58.5%) and NiOOH (1.8%). Cadmium in the negative powder is about 99.9% as the Cd(OH)2 form with 0.1% of metal cadmium. In the industrial Black Mass, the distribution of cadmium is the same, whereas the distribution of nickel is Ni0 (46.9%), Ni(OH)2 (43.2%) and NiOOH (9.9%). This material contains also 1.8% cobalt and approx. 1% iron.

Equipe: Département CP2S : Chimie et électrochimie des matériaux

El Hichou, Ahmed, Diliberto, Sébastien and Stein, Nicolas
Surface and Coatings Technology, 270(0):236-242
2015

Mots clefs: Electrodeposition Zinc oxide film Aluminum doping

Resume: Abstract Undoped and aluminum doped zinc oxide thin films were successfully deposited by electrodeposition technique from aqueous solution onto ITO substrates at optimized experimental conditions. The variations of the structural, electrical and optical properties with the doping concentration were investigated. X-ray diffraction analysis showed typical patterns of the hexagonal ZnO structure for both doped and undoped films. The films are single phase and polycrystalline with the (002) preferred orientation. The grain size, texture coefficient and optical band gap values were evaluated for different aluminum salt concentrations. The films, obtained from a 10? 7 M aluminum electrolyte, exhibit the highest crystallographic quality and lowest electrical resistivity of 2 × 10? 4 ?·cm with an energy band gap of 3.35 eV.

Equipe: Département CP2S : Chimie et électrochimie des matériaux

2014

Articles:

Kenzari, Samuel, Bonina, David, Dubois, Jean-Marie and Fournee, Vincent
Journal of Materials Processing Technology, 214(12):3108--3111
2014

Mots clefs: Additive manufacturing, Complex metallic alloys, Icosahedral Al–Cu–Fe–B, Phase transformations

Equipe: Centre de Compétences : Matériaux et Procédés additifs

Kenzari, Samuel, Bonina, David, Dubois, Jean-Marie and Fournee, Vincent
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, 214(12):3108-3111
2014
ISSN: 0924-0136

Equipe: Département CP2S : Métallurgie et Surfaces

Wegrowe, J.-E., Drouhin, H.-J. and Lacour, D.
Physical Review B - Condensed Matter and Materials Physics, 89(9)
2014

Equipe: Département P2M : Nanomagnétisme et Electronique de Spin

Desecures, M., de Poucques, L., Easwarakhanthan, T. and Bougdira, J.
Applied Physics Letters, 105:181120-181124
2014

Equipe: Département CP2S : Expériences et Simulations des Plasmas Réactifs - Interaction plasma-surface et Traitement des Surfaces ESPRITS

Djaziri, S., Renault, P.-O., Le Bourhis, E., Goudeau, Ph., Faurie, D., Geandier, G., Mocuta, C. and Thiaudière, D.
Journal of Applied Physics, 116:093504
2014

Equipe: Département SI2M : Microstructures et Contraintes

Kenzari, Samuel, Bonina, David, Dubois, Jean Marie and Fournee, Vincent
SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS, 15(2)
2014
ISSN: 1468-6996

Equipe: Département CP2S : Métallurgie et Surfaces

Kenzari, Samuel, Bonina, David, Dubois, Jean Marie and Fournee, Vincent
Science and Technology of Advanced Materials, 15(2):024802
2014

Equipe: Centre de Compétences : Matériaux et Procédés additifs

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