Materials Literature
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Two component self-healing microcapsules were prepared by in situ polymerization with poly (melamine-urea-formaldehyde) as wall, epoxy resin and latent curing agent sebacate hydrazide as core. The ratio of two core material and the reaction process were studied. The size and distribution of particle, surface morpholog…
Co/CeO2 catalysts showed good catalytic performances in terms of activity, selectivity and stability for intermediate temperature ethanol steam reforming, while low temperature activity should be improved. Thus, effect of nickel incorporation into Co/CeO2 catalysts for ethanol steam reforming was investigated on the c…
Using ab-initio ultrasoft pseudopotential plane wave approximation method based on density functional theory (DFT), a systematic investigation on electronic and optical properties of ZnS with and without Al-doping has been performed. Calculation results show that Al-doping narrows the band gap of ZnS systems and Al-do…
The electric resistivity, Seebeck coefficients and power factors of Y1-xEuxBaCo4O7+δ (x = 0.0, 0.05, 0.1, 0.2) ceramics were investigated from 400K to 1000K. The results show that the presence of Eu decreases electrical resistivity, and has little effect on Seebeck coefficients of the samples. The activation energy of…
Based on the experimental measurements of materials dielectric strength, this paper is focused on the relationships between dielectric strength of the materials and tensile stress applied on them. The experimental results indicated that the dielectric strengths of the unsaturated polyester resin and the unidirectional…
A new method that nanoSrTiO3 electronic ceramics powder was prepared from nitrilotriacetic acid complexes by thermal decomposition was proposed. The reaction of Ti4+ and ta3-(H3ta=C6H6O6N) and H2O2 is occurred to form [Ti2O(O2)2(ta)2]4- complex ions, which react with Sr2+ to produce Sr2[Ti2O(O2)2(ta)2] precursor, and…
Three salen complexes N,N'-bis(salicylidene)-1,2-phenylenediamino MⅢ Cl were prepared and employed for the copolymerization of carbon dioxide with propylene oxide. FT-IR and UV-Vis spectra confirmed the characteristic of metal salen complexes obtained. The central metal atoms in the salen complexes have great influenc…
Cotton and sulfuric acid that concentration is 98% as the raw material, to compare the resulting solid carbon sulfonic acid content of the material under different reaction temperatures. FTIR analysis shows that the cotton carbon is an amorphous carbon after sulfonation reactions, a sulfonic acid group present in the…
The Present research work describes the synthesis, spectral and antibacterial studies on the complexes of few complexes of Nickel(II) with amide group containing ligands. Synthesis of complexes has been carried out by conventional method as well as by microwave method. The complexes have been characterized on the basi…
The spinel LiMn2O4 was synthesized by high temperature solid-state reaction and modified by coating carbon nanotubes (CNTs) which was used as the carbon source. The effect of different coated quantity on the electrochemical performance of spinel cathode materials was discussed. The morphology and structure of the mate…
The graphite intercalation compound with easy low temperature exfoliated and high exfoliated volume was prepared by chemical oxidation method using natural graphite flakes, C2H5COOH, FeCl3 and CrO3 as raw materials, according to the mass ratio of 1:2.8:0.3:0.2. The expansion volume of graSubscript textphite intercalat…
The determination of particle induced x-ray emission (PIXE) cross sections and the concentration of elements in a material require the knowledge of the target sample thickness. In this aim, measurements of the thickness by three different methods have been performed. These are absorption of X-rays by a 55Fe source, tr…
This paper studied gasoline vapor combustion catalyzed by Pd/Al2O3 in oxygen-poor condition. By adjusting the gasoline vapor and oxygen, the inlet temperature and flow rate, collecting data of temperature difference between outlet and inlet as well as the change of gas mixture, the study analyzed the various factors i…
Zinc oxide (ZnO) thin films were grown by magnetron sputtering onto glass substrates employing a sintered ceramic target and pure argon gas. The influence of working pressure on structure and optical performance of the thin films were studied by the measurements of X-ray diffraction (XRD) patterns and optical transmis…
This paper reports a simple, cost-effective method using successive ionic layer adsorption and reaction (SILAR) in conjunction with dry etching for the fabrication of random GaP nanorods on a window layer of AlGaInP-based LEDs. The proposed method provides control over the size and density of the nanorods through the…
The yield stress of polyelectrolyte multilayer modified suspensions exhibits a surprising dependence on the polyelectrolyte conformation of multilayer films. The rheological data scale onto a universal master curve for each polyelectrolyte conformation as the particle volume fraction, φ, and the ionic strength of the…
Aluminium silicate fiber is an excellent high-temperature material which is widely used in special paper industry in recent years. Due to its property of hardly interweave into the paper and the low strength of the single inorganic fibers paper, it is difficult to make a general basis weight paper. In response to thes…
In this study, flame retardant microcapsules were synthesized using magnesium hydroxide as core materials, melamine resin as the shell material. The structure, diameters and thermal properties of prepared microcapsules were investigated by using FTIR, ELS, DSC and TGA. The effects of core/shell ratio on the properties…
Nickel and antimony doped tin oxide (NATO) electrodes were prepared by sol-gel dip-coating method. The effect of doping levels was investigated via scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDS) and X-ray diffraction (XRD). The electrochemical ozone generation efficiency was also tested…
5-hydroxymethylfurfural (HMF) was produced from glucose using WO3-MoO3 mixed metal oxides as the catalyst in a biphasic system (H2O-NaCl/THF), comprised of reactive aqueous phase saturated with NaCl, and containing AlCl3.6H2O, combined with an organic extracting phase consisting of tetrahydrofuran (THF). The influence…