Materials Literature
按标题、摘要、年份、主题和来源检索公开元数据。结果保留作者、摘要、分类与原始来源链接。
Solid oxide fuel cell anodes comprised of vanadium deficient lanthanum strontium vanadate (La 0.7 Sr 0.3 V 1−x O 3−δ for x = 0, 0.05, 0.10, 0.15, and 0.20) infiltrated into porous yttria stabilized zirconia (YSZ) were investigated. La 0.7 Sr 0.3 V 1−x O 3−δ (LSV) remained single phase up to x = 0.10, with the formatio…
Short and middle range order structure of a borosilicate glass of nuclear interest doped with europium oxide was investigated in this study. Neutron diffraction and Wide Angle X-ray Scattering were used as experimental techniques. Furthermore, Reverse Monte Carlo simulation technique was also applied to build reliable…
The transversal conductivity of the gap-modification of the graphene was studied in the cases of weak nonquatizing and quantizing magnetic field. In the case of nonquantizing magnetic field the expression of the current density was derived from the Boltzmann equation. The dependence of conductivity and Hall conductivi…
We summarise the electrically driven temperature changes that have been convincingly reported for known electrocaloric materials. Materials improvements would facilitate solid-state cooling applications.
The effect of functional groups on the radial collapse and elasticity of a single-walled carbon nanotube (SWNT) under hydrostatic pressure was investigated using molecular dynamics and molecular mechanics simulations. It is found that the radial collapse and elasticity of the chemically modified SWNTs strongly depend…
T Measurements of the cation exchange capacity (CEC) show significant soil properties, in particular its ability to retain the cations because of their mobility in the soil. Thirteen soil samples rich in electrolytes of the Cheliff plain (Algeria) were analyzed in order to measure their CEC and to draw up the existing…
The DC conductivity and dielectric properties of glassy Se100–xZnx 2 ≤ x ≤ 20 alloys have been investigated in the temperature range 303 - 487 K with frequency range 100 Hz – 1 MHz. It is observed that DC conductivity decreases and the activation energy increases with Zn content in Se-Zn system. Dielectric dispersion…
Two isomorphous Mn(II) and Co(II) coordination polymers with an azide and zwitterionic dicarboxylate ligand as coligands were synthesized and structurally characterized, and their magnetic properties were studied. They are formulated as [M3(L)2(N3)6(H2O)2]·2H2O (M = Mn (1), Co (2), L = 1,2-bis(4-carboxylatopyridinium-…
Synthesis of nanocrystalline hexaaluminate is reported using an original activated reactive synthesis process. Starting from a classical ceramic solid, exhibiting low surface area and a micrometric crystal size, a two-step grinding process allows reduction of the crystal size down to a few nanometers and development o…
Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Icon Share Twitter Facebook Reddit LinkedIn Tools Icon Tools Reprints and Permissions Cite Icon Cite Search Site Citation Johannes Roth, Steffen Sonntag, Johannes Karlin, Carolina Trichet Paredes, Marc Sartison, Armin K…
SrAl2O4: Eu was synthesized by combustion method. Mechanoluminescence (ML) and Photoluminescence (PL) were studied. Time vs ML intensity plot shows two peaks. ML intensity increases with load applied and it is regained by UV irradiation. Photoluminescence shows intense emission in green region. PACS: 78.60.Mq; 78.55.Hx
We determined the catalytic function of chemically modified fly ash (MFA) for the growth of carbon nanotube (CNT) ropes with ~54% yield by the pyrolysis of the composite film of poly (vinyl alcohol) (PVA) at 500°C for 10 min under 2 L/min flow of nitrogen. Fly ash was treated with 2M sodium hydroxide to have MFA and u…
Abstract The shape of a solidifying interface is generally affected when it encounters foreign inert particles. The degree of deformation depends on the morphology and physical properties of the particles, the melt, the solid and the external fields, affecting the pushing and capture process of the particles. The part…
Solvothermal reactions of elements Ge and Se with Ln(2)O(3) in a pentadentate polyamine, tetraethylenepentamine (tepa), produced novel neutral lanthanide-selenidogermanate polymers [{Ln(tepa)(μ-OH)}(2)(μ-Ge(2)Se(8))](n) (Ln = Eu 1, Gd 2, Dy 3). The reaction with Dy(2)O(3) in ethylenediamine (en) afforded an ionic sele…
Sub-micron Fe2O3 encapsuled carbon spheres core-shell composite (Fe2O3/C) has been successfully prepared through one-pot solvothermal reaction of acetylacetone and FeCl3 at 500°C. The phase and morphology of the sample were examined by XRD, TEM, SEM, HRTEM, XPS and TGA. Meanwhile, magnetic property of the sample was m…
Superthin polyvinil alcohol graphene sheet of several nanometers in thickness is obtained by the electrospinning. Polyvinil alcohol (10 wt.%) solution with the additive of ash (0.5 wt.%) is used for this purpose
Self-assembly owing to noncovalent interactions provides a powerful tool for the creation of structures at a molecular level. Metal-connected diblock polymers offer a versatile building block for a large variety of nanostructures. Here, we report the supramolecular self-assembly of bis(2,2′:6′,2′′-terpyridine) metal-c…
The dual cell concept is a novel design for solid oxide fuel cells operating at intermediate temperature. The cell comprises a series of five layers with different compositions, alternating two dense electrolytes and three porous layers, i.e. the outer electrodes and a central membrane. The dual cell concept makes it…
Single crystals of a new phosphate AgCr2(PO4)(P2O7) have been prepared by the flux method and its structural and the infrared spectrum have been investigated. This compound crystallizes in the monoclinic system with the space group C2/c and the parameters are, a = 11.493 (3) Å, b = 8.486 (3) Å, c = 8.791 (2) Å, β = 11…
The electromagnetic and microwave-absorbing properties of irregular-shaped MnO2 nanoparticles (NP) and MnO2 nanorods (NR) as dielectric absorbent fillers in an insulating epoxy resin were investigated by the transmission/reflection method at 2−18 GHz. The real part of complex permittivity ϵ′ for 60 wt% of MnO2 NP-epox…