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。
Based on the non-skeleton diagrammatic expansion satisfying the compressibility and spin-susceptibility sum rules, we investigate static charge and spin responses in a two-dimensional extended Hubbard model with the nearest-neighbor Coulomb repulsion in the vicinity of its charge-ordering transition point. In this exp…
Sr and Mg doped LaGaO3 (LSGM) thin film was prepared on NiO-Fe2O3 bi-metal substrate by Pulsed Laser Deposition (PLD) method. Substrate preparation conditions were studied at different sintering temperatures in order to optimize the preparation condition for dense disk with smooth surface. By the thermal reduction, th…
Oxygen surface reduction kinetics is studied with the help of impedance spectra measured on dense thin film microelectrodes of (Ba 1-x Sr x )(Co 1-y Fe y )O 3-δ (BSCF) and related SOFC cathode materials. Effective oxygen exchange rate constants k q , calculated from area-specific surface resistances R s extracted from…
Perovskite materials of the form ABO 3 are an important family of compounds for use in solid oxide fuel cell (SOFC) cathodes. In particular, their surface properties play an essential role in their catalytic ability. This paper combines bulk defect models fit to experimental data with ab initio surface energies to pre…
Melt-spun Nd-lean NdxFe93.5-xGa0.5B6(x = 9, 10.5 and 12) alloys were die-upset, and the Nd2Fe14B grain texture in the die-upset samples were investigated. The effect of Cu-addition on the texture of the die-upset Nd-lean NdxFe93.5-xGa0.5B6(x = 9, 10.5,and 12) alloys was studied, and the texture formation mechanism ope…
Positively charged and pH self-buffering quantum dots (Tren-QDs) were achieved by surface functionalization with tris(2-aminoethyl)amine (Tren) derivatives, which are attached to the inorganic cores of QDs through bidentate chelating of dithiocarbamates. The Tren-QDs exhibit pH buffering capability by absorbing or rel…
Using a combination of anion photoelectron spectroscopy and density functional theory calculations, we explored the influence of the shell model on H atom site selectivity in Al(13)H(-). Photoelectron spectra revealed that Al(13)H(-) has two anionic isomers and for both of them provided vertical detachment energies (V…
Although the majority of PEM fuel cell catalysts are made of nanoparticles, similar surface area/volume, specific surface area, and precious metal loading can be made by using ultrathin (~100 nm) nanoporous metal membranes. We discuss here how ultrathin porous membranes can be made using electrochemical dealloying, an…
Spatial heterogeneity in the elastic properties of soft random solids is examined via vulcanization theory. The spatial heterogeneity in the structure of soft random solids is a result of the fluctuations locked-in at their synthesis, which also brings heterogeneity in their elastic properties. Vulcanization theory st…
A well-ordered three-dimensional (3D) cubic Ia3d mesoporous niobium oxide with amorphous wall is prepared under controlled humidity by a sol-gel method and further converted to crystalline 3D niobium oxide with the retention of its original mesoporous system.
A polyester nonwoven textile with Ni-based alloy coating was fabricated, and the effect of electromagnetic wave shielding was evaluated. The Ni-based was coated by electroless plating on the textile. The electromagnetic wave shielding effect of the textile with Ni-B coating was about 99.98% over the induction range of…
At 2004, Osaka Gas Co., Ltd. and Kyocera Corporation launched joint development of residential SOFC CHP system. In order to fit Japanese urban market, we decided rated output of system as 700W and have reduced the size of a power generation. At rated power, ac 700W, net ac efficiency and hot water heat recovery effici…
Nonreciprocal phase-shift composite right/left handed transmission lines with small nonreciprocity in the amplitude of the transmission coefficients are proposed. The present structures are composed of a microstrip line periodically loaded with series capacitance and shunt inductance, and a ferrite rectangular rod is…
Hydrogen and 23 Na NMR were performed to 400 °C on NaMgH 3 powder produced by reactive ball-milling of NaH and MgH 2 . The H resonance shows narrowing already at 100 °C as a narrow line superimposed on the broad, rigid-lattice signal. With increasing temperature, the fraction of spins in the narrow component grows smo…
The temperature dependence of magnetic properties of a series of aluminium-substituted cobalt ferrite, with the general composition of CoAlxFe2-xO4(x = 0, 0.1, 0.2, 0.5), has been studied. It was observed that the magnetization, at an applied field of mu0H = 5 T and a temperature of 10 K, does not change significantly…
The material characteristics of textiles used in elite sports garments have been shown to exhibit a significant influence on both the sporting performance, as well as their aesthetics, particularly in those sports where aerodynamic resistance and its associated energy expenditure impact on winning times. The present s…
In our study, hybrid gold/iron oxide loaded thermoresponsive micelles were synthesized for combined hyperthermia and chemotherapy, and optical imaging. Polymeric micelles made of amphiphilic block copolymer of poly(N-isopropylacrylamide-co-acrylamide)-block-poly(epsiv-caprolactone) were conjugated with gold/iron oxide…
Solution-processible fabrication of large-area plasmonic nanostructures using colloidal gold nanoparticles has proven its advantages not only in its simplicity, low cost, high speed, and high flexibility, but also in the realization of some nanoscale optoelectronic devices that cannot be achieved by conventional metho…
Until now, most cathode materials used in high temperature ceramic solid electrolyte oxide cells (SEOC) are perovskite-type MEIC compounds, AMO3-δ, showing oxygen sub-stoichiometry. Recently, a new family of overstoichiometric oxides, formulated A2MO4+δ with A = La, Nd, Pr, Sr and M = Ni, Cu, has been investigated. Du…
Abstract Poly(amic acid) (PAA) was prepared by the reaction of 4,4'‐(hexafluoro‐isopropylidene)diphthalic anhydride (6FDA) with 2,2'‐bis[4‐(4‐aminophenoxy)phenyl] hexafluoropropane (BAPP) in N , N ‐dimethylacetamide (DMAc). Hybrid films were obtained from blend solutions of the precursor polymer and the organoclay Clo…