Showing papers in "Solid State Sciences in 2006"

TL;DR: In this paper, it was shown that cobalt and nickel sulphides react versus lithium through conversion reactions similarly to their homologous oxides with during the discharge step the formation of metallic nano-particles embedded in Li2S that on the following charge convert back into sulphides.

TL;DR: In this paper, a refined Na1.5VOPO4F0.5 was prepared by tuning the synthesis conditions previously reported by Barker et al. Using FTIR, Rietveld analysis and atomic absorption measurements, the stoichiometry and structure were unambiguously determined.

TL;DR: In this article, a microwave assisted hydrothermal method was proposed for preparing nanosized zinc aluminate ZnAl 2 O 4 with a spinel structure of interesting properties including high specific surface area (220 m 2 /g), microporosity and narrow pore size distribution.

TL;DR: In this paper, a comparative study of the adsorption and release of a model drug, ibuprofen, was carried out using MCM-41-type mesoporous materials superficially modified by a post-synthesis method with different organic groups.

TL;DR: In this article, the authors synthesize homogeneous nanoparticles of nickel oxide (NiO) of 25 nm size with narrow size distribution using CTAB (cetyltrimethyl ammonium bromide) as the surfactant.

TL;DR: In this article, the structure of the core/shell materials was established using a combination of X-ray and neutron powder diffraction, and transmission electron microscopy, and magnetic measurements were obtained from magnetic measurements using a SQUID magnetometer.

TL;DR: In this paper, single-crystalline hexagonal MoO 3 rods were fabricated via solution precipitation and solvothermal treatment, and the product was investigated by a variety of techniques, including X-ray diffraction (XRD), x-ray photoelectron spectroscopy (XRPS), scanning electron microscopy (SEM) and transmission electron microscope (TEM).

TL;DR: In this article, the Raman signature confirms the spinel structure and the homogeneity of the particles were discussed regarding the influence of thecation substitutions.

TL;DR: In this article, four dealuminated faujasite samples have been employed as matrices for ibuprofen adsorption and in vitro drug delivery with the aim of adapting the pore size to the size of the drug molecule and to study the influence of Al content upon the drug delivery.

TL;DR: In this paper, the spatial-statistical analysis of the geometrical structure of hard spheres of variable size has been studied and a search method for crystalline sub-structures is presented.

TL;DR: In this paper, it is shown that carbon nanotori, perforated fullerenes and nanoporous graphitic structures, exhibiting negative Gaussian curvature introduced by the presence of nonhexagonal rings, behave as strong paramagnets experiencing large magnetic moments when an external magnetic field is applied.

TL;DR: In this article, the authors measured negative thermal expansion in rare earth molybdates of orthorhombic structure (A = Y, Er, Yb and Lu) by high temperature X-ray diffraction and dilatometry.

TL;DR: In this article, the authors report the synthesis, crystal structures, magnetic properties, and thermal behavior of a family of isostructural transition metal gallate dihydrates containing infinite chains of trans-corner sharing M O 6 octahedra.

TL;DR: In this paper, a 3D Euclidean space is constructed by projecting tilings of 2D hyperbolic space onto three-periodic minimal surfaces, giving surface reticulations.

TL;DR: In this article, the physical properties of an oxygen stoichiometric sample, YBaCo 4 O 7, have been studied by T -dependent measurements of the electrical resistivity ( ρ ), Seebeck coefficient (S ), and magnetization.

TL;DR: In this article, the authors developed an advance in the field of new synthesis techniques for functional materials like Yttria Stabilized Zirconia (YSZ) used as sensors, thermal barriers or electrolytes for high-temperature fuel cells.

TL;DR: The crystal structures of three salts, 1-ethyl-3methylimidazolium tetrafluoroborate (EMImBF4), hexafluoroniobate, EMImNbF6, and hexifluorotantalate, all of which form room temperature ionic liquids (RTILs), have been determined by low-temperature X-ray diffraction studies of their single crystals as mentioned in this paper.

TL;DR: In this article, the effect of dopants on electronic properties and sintering behavior of SnO2-based ceramics co-doped with Sb and Zn (SnO2:Sb:Zn) was studied.

TL;DR: In this paper, a model of the long range order of anions that remains unchanged over the whole range of composition was proposed, whereas protonation or deprotonation accompanied the progressive filling of the three sublattices by FeIII ions with periodicity a 0 × 3, if a 0 is that of the hexagonal cation pavement.

TL;DR: In this paper, a mixture of ammonium molybdate oxide is converted to inorganic fullerene-type (IF) MoS2 and MOS2 nanotubes by H2S reduction using a facile and quick procedure.

TL;DR: In this article, a new open-framework zinc terephthalate was obtained under slightly acidic condition by reacting 1,4-benzendicarboxylic acid (H2BDC) with ZnO in a DEF solution.

TL;DR: It was found that the performance of APSVR model outperformed those of back propagation-artificial neural network (BP-ANN), multiple linear regression (MLR) and partial least squares regression (PLSR) methods.

TL;DR: In this article, powder neutron diffraction studies on several half-doped manganites (Pr0.5Ca 0.5MnO3, TbBaMn2O6, YBaMm2O 6) and magnetite (Fe3O4) are reviewed.

TL;DR: In this paper, the spectral and optical properties of layered single crystals of TlGaSe 2 have been determined using spectrophotometric measurements of transmittance and reflectance in the wavelength range 200-2500 nm.

TL;DR: In this paper, the electronic structure of cubic Bi 2 Ti 2 O 7 was visualized and compared with the electronic structures of the Aurivillius phase ferroelectric SrBi 2 Ta 2 O 9 (SBT), which displays a ferro electric distortion below 608 K associated with the tendency of lone pair active Bi 3+ to move off-center.

TL;DR: In this paper, the crystal structures of two new solvothermal synthesized compounds [C6H17N3]4[Sb4V16O42]⋅2H2O (1) and [NH4]4 [Sb8V14O42]-⊆2H 2O (2) are presented.

TL;DR: X-ray diffraction studies of nanocrystalline Ru-doped SnO 2 reveal that concentration of Ru governs particle size as well as strain such as tensile or compressive form as mentioned in this paper.

TL;DR: In this paper, the crystal structure of e-VOPO4 was determined in the space group Cc from X-ray powder diffraction data using a rigid body approach and the resulting structure was compared to a recently published, slightly different structure model (space group P 2 1 / n ) using Rietveld refinement.