Materials Literature
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The sorption of eosin by peanut husk, which was chemically modified by formaldehyde in acidic medium was studied with variation in the parameters of contact time, pH, initial eosin concentration and temperature. They were used for equilibrium sorption uptake studies with eosin. The results indicate that sorption equil…
The influence of amino acids on the corrosion behaviour of steel in H2SO4 solutions was studied by potentiodynamic polarization, AC impedance and weight-loss. The Potentiodynamic polarization curve results show that compound amino acids are mixed-type inhibitors which inhibit the reactions of anode and cathode; AC imp…
In order to change the dendritic grain structure of Al-Cu alloy to equaxed grain, the effects of electromagnetic stirring on the microstructure of an Al-Cu alloy were investigated. The results show that the positive and negative stirring has the best stirring effects at the same condition. It is apparent that the morp…
With catalysis system, carbonylation of methanol liquid is a better method in manufacture of acetic acid. However previous control mode can not well meet technique demands. This paper made some modification on reaction process control based on manufacturing technique. Aimed at much influence upon temperature including…
Bamboo kraft pulp with Kappa number of 25.6 was sampled, and oxygen delignification was applied to bleach these bamboo pulp samples. By investigating yield, Kappa number, viscosity, brightness of pulp, and delignification selectivity, it has been proven that caustic soda dosage and reaction temperature were major fact…
Electroconductive TiN/O′-Sialon multiphase ceramics were prepared by pressureless sintering from TiN/O′-Sialon powders as the chief raw material which were synthesized by the carbothermal reduction nitridation method using high titania slag, silicon fume and bauxite chalmette. Phase compositions and were analyzed. The…
The potentiodynamic polarization and cyclic voltommogroms studies were carried out on the copper with micro-addition of Cr and Zr in solutions of 0.5M NaCl, 0.5M NaOH and 0.5M HCl at room temperature. The corrosion resistance of pure copper is deteriorated with addition of the alloying elements Cr and Zr. Significant…
This paper researched the fabrication of perovskite (CaTiO3) synroc by combustion synthesis (CS) and the characterization of the products. This synthesis process is simpler, the fabricated synroc can immobilize waste loading up to wt( 36%) SrO with satisfied physical properties (density>4.2 g•cm-3, open porosity<0.2%)…
The principle and method of analysis of the crystallographic planes standard equator plane projection are described in this article. Under different technological using similar Fe-3% Si silicon steel samples, conventional grain oriented silicon steel, 1150°C conventional hot-rolled grain oriented silicon steel and non…
The catalytic activity in NO+CO reaction was investigated, and the structure and reductive properties of various CuO/TiO2-g-Al2O3 catalysts were characterized by means of BET, XRD, NO-TPD and DRIFTS technologies. The NO-TPD profile showed that peak temperatures of NO desorption by the 12Cu15TA were lower than that by…
Membrane surface modification is the important method to decrease membrane fouling. The hydrophilic modification of ceramic membrane with nano-sized inorganic coating is prepared by the wet chemical methods. The thin nano coating is not a separating top layer but distributes uniformly on the surface of the membrane po…
Two kinds of organosilicate precursors, trimethylsilane (3MS) and diethoxymethylsilane (DEMS), were used to produce low-k films by plasma-enhanced chemical vapor deposition (PECVD) in this work. The experimental results indicate that DEMS-based low-k films have superior electrical performance and better thermal stabil…
The corrosion process was analyzed for carbon steel when used in Ca(ClO)2 hypochlorite Disinfection Solution. The corrosion resistance of Ni-P electroless coating was characterized by electrochemistry method. From the results, it was shown that the corrosion reaction can occur spontaneously according to the caculation…
Based on the impedance matching and electromagnetic resonant characteristic of composite materials, we present a single-layer metamaterial absorber consisting of arch copper loop and substrate FR-4, of which the resonant frequency depended on the loop’s geometry perimeter. By combining resonant loops with different di…
This study investigated the applicability of TiO2/Au (or TiO2/Ag) composite particles, which probably have the plasmon resonance effect, on FTO-glass substrate of the working electrode of a DSSC. The dry particle coating technique was utilized to coat the surfaces of TiO2 particle with nano-sized Au (or Ag) powder par…
Silicon nanowires (SiNWs) are new one-dimensional material with unique properties, which have been widely used in field-effect devices, nano-sensors and other nano-electronic devices. In this paper, the new progress in research on the synthesis methods of SiNWs is summarized. The influencing factors and characteristic…
The effects of PW/SiO2 activation temperature on MPA (p-methoxyacetophenone) synthesis from toluene and acetic anhydride were carefully studied, and catalysts were carefully characterized by BET and XRD. The charactrerized results displayed that the interaction between PW and SiO2 promoted the loss of acidic protons f…
Fe56Co44 alloy nanowires were fabricated by electrodeposition with aluminum oxide template. Transmission Electron Microscope photographs show the nanowires are separate and have no twist with each other. Mossbauer spectroscopy results show the values of the isomer shift, hyperfine splitting and linewidth all decrease…
The role of xanthine in the growth process of Au nanoparticles (AuNPs) was clarified by Uv-vis absorption spectra, resonance light scattering (RLS) spectra, cyclic votlammetry (CV), and differential pulse voltammetry (DPV). In a growth solution containing 0.01 M phosphate buffer solution (PBS, pH 7.4), 24.3 μM HAuCl4,…
Highly uniform and monodisperse GdF3:Eu3+ nanopeanuts has been successfully prepared by a sonochemical method under ambient air without any template. The as-prepared GdF3:Eu3+ sample was characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), and photoluminescence (PL) spectra.