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。
Neutral layers of the bimetallic oxalate complex {[Co(H2O)2]3[Cr(ox)3]2}infinity are formed in the presence of a crown ether and stabilized by hydrogen bonding. The resulting soluble ferromagnet orders at Tc = 7.4 K.
To gain insight into the degree by which sulfur-based contaminants poison the solid oxide fuel cell (SOFC) anode, we examine adsorption and dissociation of consecutive molecules of hydrogen sulfide on a nickel (111) surface. Preferred adsorption sites, energies, transition states, and kinetic barriers are calculated f…
We have synthesized crystalline Fe-doped trititanate nanotubes via a wet-chemistry method. The products were characterized by high-resolution transmission electron microscopy (TEM), energy-dispersive X-ray spectrometry (EDS), in-situ X-ray diffraction (XRD), ultraviolet−visible spectrophotometry (UV−vis), synchrotron…
Lattice Monte Carlo simulations are used to study the stabilization of different ordered bicontinuous phases in A−B diblock copolymer systems. The stabilization approach involves attempting to reduce the packing frustration inside the nodes of the bicontinuous phases by the addition of an A-component “additive”. Two d…
Ferroelectric low-tolerance-factor perovskites are gathering a lot of attention in the search for novel perovskite solid solutions with a morphotropic phase boundary, which present the highest piezoelectric coefficients known. However, thermodynamic stability is an issue, and powders and ceramics of a number of compos…
The mechanism for methanol oxidation on both TiO 2 and V/TiO 2 was investigated using temperature-programmed experiments with in-situ infrared spectroscopy. Infrared and Raman spectroscopy, along with XANES, show that the V/TiO 2 sample consists predominantly of isolated VO 4 units after calcination. Methanol was foun…
Abstract Purpose – This paper seeks to evaluate the effect of natural menthols and their synthesised epoxy‐allylmenthols as a non‐toxic inhibitor on the corrosion of steel in HCl media at various temperatures. Design/methodology/approach – Epoxy‐allylmenthols were synthesised and characterised. Gravimetric technique w…
Purpose In this paper, the main aim is to study the influence of some nitrogen heterocyclic compounds, namely 2‐mercaptobenzimidazole (2‐MBI), 2‐mercaptobenzoxazole (2‐MBO) and 2‐mercaptobenzothiazole (2‐MBT) on the corrosion inhibition of copper in 0.5 M sulphuric acid. Design/methodology/approach Measurements were c…
The relationship between the structure and composition with the magnetic properties of near stoichiometric cobalt ferrite nanoparticles Co x Fe 3 - x O 4+ δ (0.85 < x < 1.1) prepared in large batches with average sizes in the range 60−210 nm has been investigated. Chemical analysis and Rietveld refinement of the X-ray…
Abstract Novel amphiphilic block polymers composed of poly(l-lactic acid) (PLLA) and poly(sarcosine) (PS) were synthesized by successive polymerizations of lactide and sarcosine N-carboxy anhydride (NCA). The degree of polymerization of each block was controlled by the monomer/initiator ratio in feed. The block polyme…
Polymer-stabilized gold nanoparticles (AuNPs) were prepared and encoded with a range of surface-enhanced Raman reporter molecules. A range of as-synthesized polymers produced by reversible addition fragmentation chain transfer (RAFT) polymerization were demonstrated to self-assemble at the surface of AuNPs dispersed i…
Novel oligomeric alkoxysilanes consisting of double-four-ring (D4R) units functionalized with mono-, di-, and trialkoxysilyl groups (designated as 1, 2, and 3, respectively) were designed as nanobuilding blocks for synthesizing silica-based nanomaterials. Hydrolysis and polycondensation of these oligomers were perform…
Five organic-inorganic hybrid compounds, namely, [Co2(fcz)4(H2O)4][beta-Mo8O26].5H2O (1), [Ni2(fcz)4(H2O)4][beta-Mo8O26].5H2O (2), [Zn2(fcz)4(beta-Mo8O26)].4H2O (3), [Cu2(fcz)4(beta-Mo8O26)].4H2O (4), and [Ag4(fcz)4(beta-Mo8O26)] (5), where fcz is fluconazole [2-(2,4-difluorophenyl)-1,3-di(1H-1,2,4-triazol-1-yl)propan…
Abstract We have shown that the morphological features of the sol–gel derived thin films of ZnO depend strongly on the choice of the precursor materials. In particular, we have used zinc nitrate and zinc acetate as the precursor materials. While the films using zinc acetate showed a smoother topography, those prepared…
Purpose This paper aims to investigate the inhibitive effect of ethanol extracts of Garcinia kola (EXG) for the corrosion of mild steel in H 2 SO 4 solutions. The study is another trial to find a cheap and environmentally safe inhibitor for mild steel corrosion. Design/methodology/approach The inhibition efficiency ha…
We investigate transition rates between different spin configurations for $S \ge 1$ spins weakly coupled to a $d$-dimensional phonon bath. This study is motivated by understanding observed magnetization relaxation as a function of temperature in diverse magnetic systems such as arrays of magnetic nanoparticles and mag…
The structural evolution of high-density polyethylene subjected to uniaxial tensile deformation was investigated as a function of strain and after annealing at different temperatures using a scanning synchrotron small-angle X-ray scattering (SAXS) technique. The results confirm that in the course of tensile deformatio…
Core-shell nanostructures consisting of FePt magnetic nanoparticles as the core and semiconducting chalcogenides as the shell were synthesized by a series of reactions in a one-pot procedure. Adding Cd(acac)2 as the cadmium precursor to a reaction mixture containing FePt nanoparticles afforded FePt@CdO core-shell inte…
We demonstrate electrochemical top gating of graphene by using a solid polymer electrolyte. This allows to reach much higher electron and hole doping than standard back gating. In-situ Raman measurements monitor the doping. The G peak stiffens and sharpens for both electron and hole doping, while the 2D peak shows a d…
A systematic electrical and rheological characterization of percolation in commercial polydisperse polystyrene (PS) nanocomposites containing multiwall carbon nanotubes (MWCNTs) is presented. The MWCNTs confer appreciable electrical conductivities (up to ca. 1 S/m) to these nanocomposites at a concentration of 8 vol %…