Search Results - "Jolivet, J. P."

Structural evolution during the reaction of Li with nano-sized rutile type TiO2 at room temperature by BAUDRIN, E, CASSAIGNON, S, KOELSCH, M, JOLIVET, J.-P, DUPONT, L, TARASCON, J.-M

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Electrochemical comparative study of titania (anatase, brookite and rutile) nanoparticles synthesized in aqueous medium by Koelsch, M., Cassaignon, S., Ta Thanh Minh, C., Guillemoles, J.-F., Jolivet, J.-P.

“…Titanium oxide TiO 2 has found extensive use in a great variety of applications among which electrode materials for dye-sensitized solar cells. The polymorphs…”
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Magnetic order in γ-Fe2O3 nanoparticles: a XMCD study by BRICE-PROFETA, S, ARRIO, M.-A, TRONC, E, MENGUY, N, LETARD, I, CARTIER DIT MOULIN, C, NOGUES, M, CHANEAC, C, JOLIVET, J.-P, SAINCTAVIT, Ph

“…Spin-canting in spinel nanoparticles of maghemite has multiple origins, among which surface effects, finite-size effects or chemical disorder effects. XMCD at…”
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Carbothermal synthesis of Sn-based composites as negative electrode for lithium-ion batteries by Mouyane, M., Ruiz, J.-M., Artus, M., Cassaignon, S., Jolivet, J.-P., Caillon, G., Jordy, C., Driesen, K., Scoyer, J., Stievano, L., Olivier-Fourcade, J., Jumas, J.-C.

“…The composite [Sn–BPO 4/ xC] to be used as negative electrode material for the storage of electrochemical energy was obtained by dispersing electroactive tin…”
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Magnetic-field-induced nematic-columnar phase transition in aqueous suspensions of goethite (α-FeOOH) nanorods by LEMAIRE, B. J, DAVIDSON, P, PANINE, P, JOLIVET, J. P

“…Colloidal aqueous suspensions of goethite lath-shaped nanorods form nematic and isotropic phases. We show that they also display a 2D rectangular (c2mm)…”
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Structural and Magnetic Characterization ofε-Fe2O3 by Tronc, E., Chanéac, C., Jolivet, J.P.

“…ε-Fe2O3dispersed in silica was obtained by heat treating (1400°C) a composite made up of 10-nm particles ofγ-Fe2O3well dispersed in a silica xerogel based on…”
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Physical properties of aqueous suspensions of goethite (α-FeOOH) nanorods. Part I: In the isotropic phase by LEMAIRE, B. J, DAVIDSON, P, FERRE, J, JAMET, J. P, PETERMANN, D, PANINE, P, DOZOV, I, JOLIVET, J. P

“…Depending on volume fraction, aqueous suspensions of goethite (alpha-FeOOH) nanorods form a liquid-crystalline nematic phase (above 8.5%) or an isotropic…”
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Outstanding magnetic properties of nematic suspensions of goethite (alpha-FeOOH) nanorods by Lemaire, B J, Davidson, P, Ferré, J, Jamet, J P, Panine, P, Dozov, I, Jolivet, J P

“…Aqueous suspensions of goethite (alpha-FeOOH) nanorods form a mineral lyotropic nematic phase that aligns in a very low magnetic field (20 mT for samples 20…”
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Surface-related properties of γ-Fe2O3 nanoparticles by TRONC, E, EZZIR, A, CHERKAOUI, R, CHANEAC, C, NOGUES, M, KACHKACHI, H, FIORANI, D, TESTA, A. M, GRENECHE, J. M, JOLIVET, J. P

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Surface effects in noninteracting and interacting γ-Fe2O3 nanoparticles by Tronc, E, Fiorani, D, Noguès, M, Testa, A.M, Lucari, F, D’Orazio, F, Grenèche, J.M, Wernsdorfer, W, Galvez, N, Chanéac, C, Mailly, D, Jolivet, J.P

“…From AC susceptibility, magnetization and Mössbauer spectroscopy measurements, we show the dominant role of the surface properties and surface-to-core exchange…”
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Physical properties of aqueous suspensions of goethite (α-FeOOH) nanorods. Part II: In the nematic phase by LEMAIRE, B. J, DAVIDSON, P, PETERMANN, D, PANINE, P, DOZOV, I, STOENESCU, D, JOLIVET, J. P

“…At volume fractions larger than 8.5%, aqueous suspensions of lath-like goethite (alpha-FeOOH) nanorods form a lyotropic nematic phase. In this article, we…”
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From pure superparamagnetic regime to glass collective state of magnetic moments in γ-Fe2O3 nanoparticle assemblies by DORMANN, J. L, CHERKAOUI, R, SPINU, L, NOGUES, M, LUCARI, F, D'ORAZIO, F, FIORANI, D, GARCIA, A, TRONC, E, JOLIVET, J. P

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(Co,Fe)Pt nanoparticles by aqueous route; self-assembling, thermal and magnetic properties by Gibot, P., Tronc, E., Chanéac, C., Jolivet, J.P., Fiorani, D., Testa, A.M.

“…(Co,Fe)Pt alloy nanoparticles of A1-type structure were obtained by reduction of metallic salts by hydrazine in aqueous medium. Sb and Cu were used as…”
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From pure superparamagnetism to glass collective state in γ-Fe2O3 nanoparticle assemblies by DORMANN, J. L, FIORANI, D, CHERKAOUI, R, TRONC, E, LUCARI, F, D'ORAZIO, F, SPINU, L, NOGUES, M, KACHKACHI, H, JOLIVET, J. P

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Small-angle X-ray scattering and X-ray absorption near-edge structure study of iron-doped siloxane-polyoxyethylene nanocomposites by Chiavacci, L.A, Dahmouche, K, Santilli, C.V, De Zea Bermudez, V, Carlos, L.D, Briois, V, Craievich, A.F

“…The local and medium‐range structures of siloxane‐POE hybrids doped with Fe(III) ions and prepared by the sol‐gel process were investigated by X‐ray absorption…”
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Adsorption phenomena and magnetic properties of γ-Fe2O3 nanoparticles by PRODAN, D, CHANEAC, C, TRONC, E, JOLIVET, J. P, CHERKAOUR, R, EZZIR, A, NOGUES, M, DORMANN, J. L

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Solid-State 47,49Ti NMR Determination of the Phase Distribution of Titania Nanoparticles by Gervais, C, Smith, M. E, Pottier, A, Jolivet, J.-P, Babonneau, F

“…47,49Ti solid-state NMR spectra are reported from TiO2 nanoparticles. Particles heated below 700 °C are predominantly anatase. The corresponding 47,49Ti NMR…”
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Size Tailoring of Magnetite Particles Formed by Aqueous Precipitation: An Example of Thermodynamic Stability of Nanometric Oxide Particles by Vayssières, Lionel, Chanéac, Corinne, Tronc, Elisabeth, Jolivet, Jean Pierre

“…The particle mean size of magnetite precipitated in aqueous solution can be adjusted and stabilized against ripening over a large range at the nanometric scale…”
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Superparamagnetic susceptibility of a nanoparticle assembly: application of the Onsager model by Ezzir, A., Dormann, J.L., Kachkachi, H., Nogues, M., Godinho, M., Tronc, E., Jolivet, J.P.

“…Using the Onsager model and taking into account the demagnetizing factors, we related the effective field to the applied one, and thereby we compared the…”
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Exocam: Mars in a box to simulate soil-atmosphere interactions by Rannou, P., Chassefière, E., Encrenaz, T., Erard, S., Génin, J.M., Ingrin, J., Jambon, A., Jolivet, J.P., Raulin, F., Renault, P., Rochette, P., Person, A., Siguier, J.M., Toublanc, D.

“…We present the principle of the EXOCAM chamber, devoted to the study of physical-chemical interactions between the atmosphere and the surface and subsurface in…”
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