Showing papers in "Solid State Sciences in 2005"

TL;DR: Three new iron benzenedicarboxylates have been synthesized by solvothermal techniques, and their structures determined from single crystal X-ray data: Fe(OH)(BDC)(py)085 (1), Fe(BDC)042(DMF)025 (3) as mentioned in this paper.

TL;DR: In this paper, a new application of mesoporous materials as bone regenerators is described, where in vitro bioactivity studies by soaking three different mesopore materials, SBA-15, MCM-48 and MCM41, in simulated body fluid (SBF) have been carried out.

TL;DR: In this article, two metal-diboride-based ceramics containing up to 15 vol%. ultra-fine α-SiC particulates were developed from commercially available powders.

TL;DR: In this paper, the authors consider that trivalent iron oxyhydroxides and oxides, belong to two different structural types: goethite/hematite type and lepidocrocite/maghemite type, and conclude that kinetic phenomena are more important than laws of thermodynamic for explaining the experimental results found.

TL;DR: In this article, the structural and micro-structural characterization of three titanates, A 2 Ti2O7 (A = Y, Gd and Dy), with a pyrochlore-like structure was reported.

TL;DR: In this article, it was shown that the anion exchange reactions of layered double hydroxides take place by the dissolution-reprecipitation mechanism rather than by the topotactic mechanism.

TL;DR: The crystal structure of Y2Mo3O12 was refined by the Rietveld method for 130°C as orthorhombic with space group Pbcn (No. 60).

TL;DR: EPR and FT-IR absorption measurements performed on x MnO ⋅ ( 100 − x ) [ B 2 O 3 ⋆ Bi 2 O 4 ] glasses with 0 ⩽ x ⩼ 50 Â

TL;DR: The use of a reaction mixture, characterized by high dilution (H2O/TEOS = 495), low to medium acid concentration (0.4-1.6 M HCl) and the presence of a cosurfactant (CTMABr), allows the synthesis of micron-sized particles of SBA-16 type mesoporous silica with different morphologies and structural characteristics as mentioned in this paper.

TL;DR: In this paper, the reactivity of typical electrode materials for solid oxide fuel cells, namely La0.6Sr0.4Co0.2Fe0.9Gd0.95 (CGO), with fast oxide-ion conductor La2Mo2O9 is thoroughly studied using X-ray diffractometry.

TL;DR: In this paper, a model which ascribes the photoemission of the chemically modified silver colloidal particle to oligomeric clusters on the Ag particle surface is proposed, which has potential for biological labelling, and light emitting sources in nanoscale optoelectronics applications.

TL;DR: In this paper, hexagonal WO 3 nanorods of 5-50 nm in diameter and 150-250 nm in length have been synthesised in gram quantities by a low temperature hydrothermal route using citric acid as a structural modifier and hexadecylamine as a templating agent.

TL;DR: In this paper, the features and characteristics of the polyol method with regard to a preparation of nanoscale compounds and functional materials are summarised, and the preparation of γ-Fe2O3 as a magnetic pigment, 10 to 100 nm in diameter, is discussed.

TL;DR: In this article, the authors used Mossbauer spectroscopy to obtain the domain of existence of a green rust with an ordered upper bound of [ 0.25, 0.33 ] for x = { [ Fe III ] / [ Fe total ] } with ordered upper limit [ Fe II 4 Fe III 2 ( OH ) 12 ] 2 + ⋅ [ CO 3 ∆ ∼ 3 H 2 O ] 2 −.

TL;DR: In this paper, the crystal chemistry of two initial mixtures of LiFePO 4 and heterosite FePO 4 (0.5 and 0.75 ) was investigated through Neutron diffraction at 350 and 370°C, respectively, and at room temperature after cooling.

TL;DR: In this paper, the characterization of the catalytic performance of MoVTeNbO mixed metal oxides catalysts, synthesized by three different preparation procedures, are comparatively presented.

TL;DR: In this paper, the authors studied the oxygen hyperstoichiometry of lanthanum nickelate-based compounds with K2NiF4-type structure at 923-1223 K in the oxygen partial pressure range 8 × 10 −5 to 0.6 atm.

TL;DR: In this paper, a new phosphorous containing MCM-41 mesoporous material was synthesized via one-step synthesis, which exhibited the characteristic ordered hexagonal array of mesopores of this kind of materials and containing a small amount (under 1%) of phosphorous incorporated into its structure.

TL;DR: In this article, a superlattice with Cmmm symmetry was found for the NdBaCo2O6−δ phase of the solid-state reaction at 1100°C.

TL;DR: In this paper, the effects of minor titania additions and La:Sr cation ratio on the properties of lanthanum-strontium ferrites with high ionic conductivity have been assessed employing dilatometry, oxygen permeation studies and total conductivity with Seebeck coefficient measurements in the oxygen partial pressure (p (O 2 )) range, 10 −20 to 0.5 atm, with a relatively low, temperature-activated hole mobility indicating a hopping mechanism.

TL;DR: BaBiBO4, or BaBi(BO3)O, is a novel borate oxide which has been synthesized by solid-state reaction at temperatures below 650 °C and 1 atm pressure as mentioned in this paper.

TL;DR: In this paper, high-pressure experiments on β-vanadium bronzes, β - A 0.33 V 2 O 5 (A = Li +, Na+, Ag+, Ca2+, Sr2+ and Pb2+) have been performed.

TL;DR: In this paper, coupled substitutions at the Ba and Ti cationic sites are shown to improve the material properties, showing that the compositions Ba0.9Bi0.067(Ti1−xZrx)O3 display a relaxor behavior close to room temperature.

TL;DR: In this paper, the NH4CdCl3 (NH3Cl3) modification of the SrZrS3 was shown to be a low-temperature modification.

TL;DR: Experimental evidence proving the unique stabilization of the 6s orbital in platinum and gold is presented in this article, where the conclusions are drawn from the chemical reactivities of both elements, as well as from structural and spectroscopic features of selected compounds.

TL;DR: In this paper, the dielectric properties of new lead-free ceramics derived from BaTiO3 by iso-valent and offvalent substitutions in both octahedral and dodecahedral sites were investigated.

TL;DR: In this article, the grain size is highly dependent on the nature of non-polar solvent, 25-30 and 80-90 nm sized nanoparticles with isooctane and n-octane, respectively.

TL;DR: A series of alkaline earth metal salts of the bis[trifluoromethyl)sulfonyl]imide anion have been prepared and structurally characterized as discussed by the authors.

TL;DR: In this paper, lead(II) nitrite complexes with 1,10-phenanthroline (phen) containing three different anions, [Pb(phen)2(O2N)(O2ClO2)]2 complex is likely to be caused by both lone pair activity and the π-π stacking interactions.

TL;DR: In this article, a single precursor Co(CO3)0.35Cl0.20(OH)1.10 was successfully synthesized via a thermal decomposition and oxidization route using CoCl2⋅6H2O with CO(NH2)2 at 95-120°C.