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。
Cubic phase zirconium carbide (ZrC) nanoparticles encapsulated in graphitic carbon with an average size of about 10 nm were produced using pulsed plasma in liquid (PPL), in which zirconium metal electrodes provided the zirconium source and liquid ethanol the carbon. The quenching effect and near vacuum environment inh…
Band gap narrowing is important for applications of ZnO, especially for photoelectrochemical water splitting. In this work, we carried out first-principles electronic structure calculations with a hybrid density functional on defected ZnO. It is found that nitrogen substitutional doping alone cannot explain the largel…
The synthesis of colloidal gold or Au‐nanoparticles (Au‐NPs) by reduction of chloroauric acid (HAuCl4) with sodium citrate was done using Turkevich method. We prepare HAuCl4 solution by dissolving gold wires (99.99%) into aqua regia solution. To initiate the Au‐NPs synthesis 0.17 ml of 1 % chloroauric acid solution wa…
(Ba(0.3)Sr(0.7))[(Zn(x)Mg(1-x))(1/3)Nb(2/3)]O(3) (BSZMN) (x = 0.0, 0.2, 0.4, 0.6, 0.8, 1.0) solid solution ceramics were synthesized by the conventional solid-state sintering technique. Vibration spectra (Raman spectroscopy and Fourier transform far-infrared reflection spectroscopy, short for FTIR) and X-ray diffracti…
Cobalt substituted barium ferrites, BaCoxFe12-xO19 (x = 0.2, 0.4, 0.6 & 1.0) have been synthesized via citrate sol-gel method. All the samples have been annealed at 1000℃ and characterized using Fourier Transform Infra Red spectroscopy, X-Ray Diffractography and Vibrating Sample Magnetometry. The FT-IR spectra of the…
Undoped zinc oxide (ZnO) has been prepared at various growth temperatures by conventional sintering process. The morphology and crystalline properties of ZnO pellets were examined by scanning electron microscopy, atomic force microscopy and X-ray diffraction. It has revealed that the grain size and surface roughness t…
In this study, we have developed two new L-tryptophan based contrast agents [Gd(Try-TTDA)(H(2)O)](2-) and [Gd(Try-ac-DOTA)(H(2)O)](-). Upon addition of Cu(II) to [Gd(Try-TTDA)(H(2)O)](2-), significant increases in the relaxivity (r(1)) and hydration number of [Gd(Try-TTDA)(H(2)O)](2-) were observed. However, it only i…
A new class of micro/nano composite architecture, characterized by radially grown MnO2 nanoneedles on high specific surface area (SSA) mesoporous carbon microspheres (MCMs), is presented for the first time as electrode materials for electrochemical capacitors (ECs). This unique architecture could be considered as an o…
Eu 3+ , Tb 3+ , and Dy 3+ -doped Li 3 Ba 2 Y 3 (MoO 4 ) 8 phosphors were prepared by the conventional solid-state reaction. X-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM), photoluminescence (PL) spectra, and decay lifetimes were utilized to characterize the resulting samples. After annea…
A strong blue up-conversion photoluminescence and a greatly enhanced ferroelectric polarization were observed in Tm 3+ -Yb 3+ -W 6+ -triply-doped bismuth titanate thin films. The thin films were prepared on fused silica and Pt/Ti/SiO 2 /Si (111) substrates by chemical solution deposition and annealed at 700°C. The str…
Photo-luminescent nanofibrous crystalline silicon with hierarchical cross-linked network structures was obtained by low-temperature magnesiothermic reduction of nano-precise silica replica of natural cellulose substance (e.g., commercial filter paper and cotton). Ultrathin silica films were deposited onto the individu…
Pure ammonium diyidrogen phosphate and L-alanine doped ammonium diyidrogen phosphate crystals were grown from aqueous solutions by natural evaporation process. The grown crystals are characterized by Fourier Transform Infrared spectroscopy, Energy Dispersive X-ray, UV-visible spectroscopy and differential thermal anal…
By changing the temperature, pH, stirring rate, or time for calcium carbonate crystallization, complex shapes of aggregated calcium carbonates formed. Such shapes have earlier been ascribed to specific interactions with specialized additives. Without polymeric additives, aggregates of vaterite transformed more rapidly…
Nanospheres, consisting of a Fe3O4 core, a silica inner shell and dendritic poly(ester amine) (PEA) outer shell, were synthesized via the sol–gel reaction, and successive Michael addition and alkyne–azide click chemistry. The resultant PEA dendrimer-grafted magnetic nanoparticles (Fe33O44-gg-PEA) were characterized by…
Critical issues concerning emerging Fe-based superconductors include the degree of electron correlation and the origin of the superconductivity. X-Ray absorption spectra (XAS) and resonant inelastic X-ray scattering spectra (RIXS) of FeSe(1-x)Te(x) (x = 0-1) single crystals were obtained to study their electronic prop…
We provide a discussion of some issues raised by a recent paper published in Journal of Materials Chemistry regarding the local structure of metakaolin. Furthermore, we show using synchrotron X-ray absorption near-edge spectroscopy (XANES) that tri-coordinated aluminium sites can exist in metakaolin, providing new evi…
Ce 3+ and Eu 2+ co-doped BaSiO 3 phosphors simultaneously emit bluish purple and yellow double-color light under the excitation of 335 nm ultraviolet (UV) light. The asymmetric blue-violet emission originates from Ce 3+ , whereas the yellow emission originates from Eu 2+ . The luminescent spectra reveal that an effici…
Studying the nonisothermal kinetics of degradation of rice husks in air or nitrogen atmosphere, polypropylene and tetrafluoroethylene‐ethylene copolymer filled with different quantities of rice husks flour or the products of its thermal degradation, namely “white” or “black” rice husks ash, a linear dependence was obs…
GLARE is a fiber metal laminate that is a novel hybrid composite, consisting of thin aluminum and glass/epoxy layers. The main advantage of GLARE is its high fatigue and impact loading resistance. Also its areal density is lower than metals or composites when they are used alone. In fact, it has benefits of metals and…
Novel flower-like Cu2S structures with strong photoluminescence emission in the near-infrared region have been synthesized via a simple, low-cost, and environmentally friendly chemical reaction from an oleic acid solution containing Cu(NO3)2·3H2O and S. Field-emission scanning electron microscopy (FE-SEM) and transmis…