Showing papers in "Solid State Sciences in 2002"

TL;DR: In this paper, structural refinements based on single crystal X-ray diffraction data are given for CaCu3Ti4O12, NaCu3Ru 4O12 and NaCu 3Ru4O 12 compounds.

TL;DR: In this paper, single crystals and pure powder samples of the new compound YBaCo4O7 have been obtained by solid-state reactions, using different temperature programs, from X-ray powder diffraction.

TL;DR: In this article, a negative correlation exists between the strontium content and the nonstoichiometry level, i.e., at low Sr content the oxygen content is higher.

TL;DR: The structure, ionic and electronic conductivities of Ce1−xGdxO2−δ (x=0-0.30) solid solutions, prepared in a wide substitutional range for the first time hydrothermally, were investigated in this paper.

TL;DR: In this paper, single crystals of Ba2LiOsO6 and Ba2NaO6 were grown from molten hydroxide fluxes and measured magnetic moment was unusually small for both materials, μeff=0.733 BM and μeff = 0.677 BM for the lithium and sodium containing compounds, respectively.

TL;DR: In this article, the effects of coating α-NaFeO2-structured LiMn0.5O2 cathode materials with carbon particles have been investigated, and the carbon coatings are shown to suppress the capacity fade observed in the uncoated cells by increasing the electronic conductivity and reducing cell polarization, thus preventing the evolution of oxygen from the cathodes.

TL;DR: In this paper, a coprecipitation that consists of mixing solutions of iron(II) and iron(III) salts with NaOH solution in adequate proportions was used to obtain the FeII4FeIII2(OH)12]2+·[SO2−4 ·m H2O]2−.

TL;DR: A series of alkali metal salts of the bis[trifluoromethyl)sulfonyl]imide anion have been prepared and structurally characterized.

TL;DR: In this article, the crystal structure of Na3{V2O2F[PO4]2} is described by a mixed paraframework of octahedra and tetrahedra with disordered Na atoms in the interstices.

TL;DR: In this paper, single crystal neutron diffraction was used to characterize the structural evolution of electrochemically oxidized La2NiO4+δ crystals as a function of temperature.

TL;DR: From the standard enthalpy of formation of tantalum oxynitride TaON, determined by oxidative drop solution calorimetry, it is possible to explain its particular synthesis conditions from Ta 2O5 and NH3 as discussed by the authors.

TL;DR: In this article, the performance of two polymorphs of Li 3 Fe 2 (PO 4 ) 3 is investigated and it is shown that reversible capacities as high as 110 mAhg −1 at C/20 regime with an excellent capacity retention are obtained by playing with particle sizes and surface.

TL;DR: In this article, an overview of M 2 NX and alkaline earth metal subnitride compounds is presented, where the reaction products obtained from the nominal starting compositions "Ca 2 NH x " (0⩽ x ⩽1) were also analyzed by X-ray powder diffraction.

TL;DR: A new oxyborate with a composition corresponding to the formula Na3La9O3(BO3)8 has been discovered in the ternary oxide system Na2OLa2O3 (B2O).

TL;DR: In this article, the phase relations and physical properties of Ga 2 O 3 SnO 2 ǫ 2 )-ZnO system were determined at 1250°C using solid state synthesis and X-ray powder diffraction and two spinels, Zn 2 SnO 4 and ZnGa 2 O 4, formed a complete solid solution.

TL;DR: In this article, the role played by Sn 5s and Pb 6s lone pairs in stabilizing the structure and giving rise to semi-metallic behavior (of SnO at ambient pressure and of PbO in the γ phase).

TL;DR: In this paper, the electronic structures of the delafossites ABO(2) (A = Cu, Ag, Au) with particular emphasis on the nature of d(10)-d(10) interactions in the close packed plane of the coinage metal ion were analyzed.

TL;DR: EMIF·HF, 1-ethyl-3methylimidazolium bifluoride, has been obtained by eliminating HF from a room temperature molten salt EMIF·23HF at around 400 K.

TL;DR: In this article, it was shown that diethylenetriamine and pentaethylenehexamine-intercalated α-zirconium phosphate can be used as a reaction field of self oxidation-reduction of formaldehyde.

TL;DR: In this article, a series of A 2 BB′O 6 double perovskites with a ferrimagnetic ground state was synthesized and studied by means of a wide set of experimental techniques.

TL;DR: In this article, the crystal structure of Pb[N(CN)2]2 was determined by single-crystal X-ray diffraction (Pnma, Z=4, a=1350.45(10), b=399.89(4), c=1199.39(11) pm, R1=0.0275, wR2= 0.0557, 68 parameters, 1073 independent reflections).

TL;DR: In this paper, the formation of microheterogeneous systems is characteristic of nonstoichiometric perovskite-related oxides, and the adequate models should be considered for the proper characterization of the low temperature oxygen transport in oxides.

TL;DR: The molecular structure of C60F18 is very close to that found in the C 60F18 solvates with aromatic hydrocarbons as mentioned in this paper, and two C…C distances are slightly elongated in the statistically averaged structure due to the presence of C 60 F18O.

TL;DR: In this paper, Na2Mg(PO4)F and Sr5(PO 4)3F have been synthesized and crystallized from 70% monofluorophosphoric acid, H2PO3F.

TL;DR: In this article, a new type of three-dimensional coordination polymer [M(ndc)(H2O)] has been synthesized by hydrothermal methods, which contains infinite pseudochains of isolated polyhedra running along [0 0 1] connected by carboxylate moieties in the [1 0 0] direction.

TL;DR: In this paper, a colloid-emulsion route was established to prepare yttria stabilized zirconia (YSZ) powder, using cost effective and commonly available inorganic salts as starting materials.

TL;DR: The high pressure behavior of dipotassium sulfide K2S with the antifluorite structure (Fm 3 m, Z=4) has been studied up to 23.0 GPa by in situ synchrotron angle-dispersive X-ray powder diffraction in a diamond anvil cell at room temperature.

TL;DR: MIL-45 or K[M3(BTC)3]·5H2O (M = Co, Fe) is a hybrid 3D open structure based on undulating octahedral chains linked by two different trimesate anions.

TL;DR: In this paper, the compounds 10 CaO·(6-x)PO2.5·t H2O (x=0, 0.3, 0.5) doped with 1% Ce3+ ions have been synthesized and investigated for the first time.

TL;DR: The lead diphosphonate and phosphonocarboxylate Pb[HO3PCH2NHCH2PO3H]2− ions have been synthesized under hydrothermal conditions and structurally characterized as discussed by the authors.