Showing papers in "Journal of Solid State Chemistry in 2001"

TL;DR: In this article, a reverse micelle method has been developed to prepare gold-coated iron (Fe@Au) nanoparticles, which self-assembles into chains on micron scale under a 0.5 T magnetic field.

TL;DR: In this paper, the crystal structure of the synthetic calcium-deficient carbonated apatite Ca1 3.40 was refined using X-ray powder diffraction data, and the results showed that the charge imbalance occurring when [CO 3 ] 2− ions replace [PO 4 ] 3− groups is primarily compensated by vacancies in Ca1 sites.

TL;DR: In this article, a defect chemistry model has been formulated, which qualitatively describes the observed pyrochlore-fluorite structural transition, and a Raman spectrum of orthorhombic Y2TiO5.

TL;DR: In this paper, the degree of Phe coprecipitation was strongly influenced by the solution pH and kind of LDH system and reached a maximum in the pH 8-10 region.

TL;DR: In this article, fine polycrystalline, nanoparticles of pure anatase titanium dioxide (average crystallite size ∼3-10 nm) with high surface area (∼210 m2/g) have been synthesized in the pure titanium phase, and the prepared nanoparticles showed a blue shift in the absorption spectra.

TL;DR: In this paper, the in situ X-ray absorption fine structure (XAFS) technique was used to study the chemical states and structural changes accompanying the electrochemical Li deintercalation of Li1−x(Mn, M)2O4 (M=Cr, Co, Ni).

TL;DR: In this paper, the gadolinium orthochromate GdCrO3 exhibits negative magnetization when magnetization-temperature curves are measured in a field-cooled mode with low applied fields ( ∼25 K).

TL;DR: In this article, the reduced tungsten oxide phases were previously studied by a combination of techniques, including high-resolution transmission electron microscopy and X-ray diffraction, combined with the previous two techniques is used to give further detail concerning the structure of the reduced oxide phases.

TL;DR: This work discusses the changes of structural parameters with temperature and proposes a new structural model for the cubic phase of Sr 2 Fe 2 O 5 using neutron powder diffraction.

TL;DR: In this paper, the authors synthesized BaCo2O5+x with various oxygen contents and investigated physical and structural properties, which can be classified into three parts of composition region in the structural properties.

TL;DR: In this paper, solid state chemistry aspects are investigated in relaxor ferroelectrics of both perovskite and tetragonal tungsten bronze (TTB) structure, and various issues regarding composition, cationic charge, electronic configuration, and structure are discussed.

TL;DR: Open tunnel oxide, α-MnO2, without any large stabilizing cation has been successfully synthesized by ozone-oxidation of Mn2+ in H2SO4 as discussed by the authors.

TL;DR: In this paper, the stacking of the single layers was closely related to the pressure in the autoclave, and a model was presented to explain this phenomenon, which was found to be related to stacking of single layers.

TL;DR: In this paper, three misfit layer compounds with the same chemical formula Ca 3 Co 4− x O 9+ δ were isolated in the Ca-Co-O system and the structure of the three crystals can be described as an alternate stacking along [001] of distorted rock-salt-type slabs [Ca 2 CoO 3 ] and of [CoO 2 ] layers displaying a distorted CdI 2 -type structure.

TL;DR: In this paper, the Rietveld method was used to refine boehmite's crystalline structure with X-ray powder diffraction, and it was shown that the hydrogen bond became weaker as the size of the crystal increased.

TL;DR: Two isostructural vanadium(IV) coordination polymers [VO(dod)2]X2 [X=Cl, Br; dod=1,4-diazoniabicyclo[2,2-2] octane-1, 4-diacetate (C10H16N2O4)] have been synthesized solvothermally and determined by single-crystal X-ray analysis as discussed by the authors.

TL;DR: Li2NaV2(PO4)3 has been prepared in the rhombohedral NASICON structure via ion exchange from Na3V2PO43, which exhibits a specific discharge capacity of 96 mAh g−1 at a current density of 0.50 mA cm−2 with a clear plateau near 3.7 V versus lithium metal as discussed by the authors.

TL;DR: The synthesis, characterization, crystal structure, and magnetic properties of Co2(OH)2BDC and Co(H2O) 2BDC are reported in this paper.

TL;DR: In this article, a metastable sol-gel phase diagram was proposed to show the crystallization process between 100 and 1400°C, showing that Z(t) crystallization occurred in two stages.

TL;DR: In this article, a simple angular overlap approach was proposed to rationalize magnetic anisotropy and the results were obtained within the framework of a simple linear model of the angular overlap of a single-molecule magnet.

TL;DR: The coordination polymers [M(dca)2pyz] (M 5 Mn, Fe, Co, Ni, Zn) have been synthesized and characterized by singlecrystal and powder X-ray di4raction Two isomers have been observed.

TL;DR: In this article, the structures of the new heavy fermion materials CeIrIn5 and CeRhIn5 have been determined by single-crystal neutron (R(F)=0.051) and X-ray (R (F)= 0.056) diffraction, respectively.

TL;DR: In this paper, the electrical properties of strontium ferrite are reported within the temperature range 700 to 950°C and the oxygen partial pressure range between 10−18 and 0.3 atm.

TL;DR: In this paper, ternary CuInS 2 nanorods were synthesized by the reaction of CuCl 2, In, CS 2, and NaOH at temperature as low as 180°C for 15 h when water was used as the solvent.

TL;DR: The thermal properties of boehmite with a crystallite size between 1 and 27 nm were analyzed by thermogravimetry and differential thermal analysis, and correlated with its crystallography, crystallite morphology, and the atom bond lengths determined by refining its crystalline structure with the Rietveld method.

TL;DR: In this article, the magnetic properties of perovskite La 1− x Pr x CrO 3 (0≤ x ≤ 1) were investigated based on dc magnetization and neutron diffraction measurements.

TL;DR: In this article, a chemical deposition method for fabrication of Cu 3 Se 2 and CuSe thin films is presented, where the films' growth is based on the decomposition of selenosulfate in alkaline solution containing a copper(II) salt and a suitable complexing agent.

TL;DR: In this article, the effects of cation ordering on dielectric properties were isolated by investigating three polymorphs of Ca(Ca1/3Nb2/3)O3 that feature different arrangements of the Ca2+ and Nb5+ cations on the B-sites of the perovskite structure.

TL;DR: Increasing iron concentration in perovskite-type solid solutions was found to decrease the unit cell volume and to increase the partial ionic and electronic conductivities as well as the thermal expansion as mentioned in this paper.

TL;DR: In this paper, the effect of the addition of alkali ions to commercial amorphous silica, generally used as support for heterogeneous catalysts, has been investigated from the point of view of morphological and structural changes.