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。
Multicomponent thermochromic systems have potential applications in rewritable printing materials. A hindrance to the widespread application of these materials is a lack of detailed knowledge of the intermolecular interactions within the systems. In this study, dye–developer interactions from a typical three-component…
The effect on cell performance of adding dopant levels of precious metals (PM: Pt, Rh, or Pd) into solid oxide fuel cell (SOFC) anodes based on carbon, ceria, and yttria-stabilized zirconia (YSZ) was examined. The PM-doped anodes remained stable in dry CH 4 and n -butane over a period of at least 24 h. While maximum p…
The gelation ability of 10 alkylammonium (CnH(2n+1)NH3+ where n=4-11, 12 and 16) anthracene-9-carboxylates (1n) has been evaluated. In cyclohexane, 1(4), 1(5), 1(6) and 1(7) only provided precipitates whereas 1(11), 1(12) and 1(16) provided very viscous solutions. In contrast, 1(8) 1(9) and 1(10) resulted in gels. The…
Preparation conditions for large-scale synthesis of double-walled carbon nanotubes (DWCNTs) by using electric arc discharge were examined. Iron, cobalt and nickel were used as catalysts, and sulfur was added as a promoter. Hydrogen and rare gases were used as buffer gases of the arc discharge. The yield of DWCNTs was…
A novel tailored bimodal porous silica with well-defined inverse opal microstructure and super-microporous lamellar nanostructure has been successfully synthesized by simultaneous application of three-dimensional order polystyrene (PS) beads and an amphiphilic ionic liquid (AIL) as templates.
Many experimental observations of ‘inverse’ or ‘quenched’ Jahn–Teller effects in copper(II) compounds in fact reflect a normal Jahn–Teller-elongated configuration that is masked by structural disorder. On the other hand, a small number of copper(II) complexes are known that genuinely exhibit these unusual structures.…
Ordered mesoporous silica SBA-15 functionalized with a high density of carboxylate groups has been prepared by a one-pot synthesis of a cyano-functionalized SBA-15 followed by treatment with sulfuric acid that removes the template and hydrolyses the cyanide group in one step.
This textbook for undergraduates and graduates begins with the basic topic of energy band theory and moves on to cover more advanced concepts and devices.Often introducing ideas with everyday comparisons, concepts are explained in full and described mathematically.The text includes problems, many of which make use of…
Electrodeposition of ZnO/eosin Y hybrid thin films from aqueous mixed solution of zinc chloride and eosin Y as promoted by reduction of oxygen has been studied. Highly oriented crystalline hybrid thin films with two distinctive structures have been obtained depending on the redox state of eosin Y. Deposition at potent…
The electrochemical and spectroelectrochemical properties of ZnO thin films prepared by reactive pulsed laser deposition in oxygen ambient have been investigated. The as-deposited and lithiated ZnO thin films were characterized by X-ray diffraction, X-ray photoelectron spectroscopy, scanning electron microscopy, and t…
The corrosion behavior of Mg is of interest because of its growing use as an alloy in the transportation industry and also because it is a major component of some intermetallic phases in Al alloys, such as the deleterious S -phase found in AA2024-T3. Pure Mg corrodes rapidly in a chloride-containing solution and even…
The surface properties of organosilane-modified smectite-type clays were examined by various physico-chemical techniques, including thermal gravimetric analysis (TGA), surface area measurements from N2 adsorption/desorption experiments (BET method), Fourier transform infrared spectroscopy (FTIR), chemical stability me…
In this study, the dimensional and physical properties of cotton/spandex single jersey fabrics are investigated and the results compared with fabrics knitted from otton alone. The loop length and amount of spandex are usted to determine the dimensions and properties of the knits. It is apparent that as the amount of s…
The synthesis of T8 silsesquioxane cages from trialkoxysilanes using tetra n-butylammonium fluoride is described. The yields are in the range 20–95%, which is a great improvement on other literature routes. This methodology enables a wide range of functionalised T8 cages to be prepared. The X-ray crystal structures of…
Hybrid electrochemical supercapacitors based on carbon and conducting polymers as negative and positive electrodes, respectively, have been investigated. Poly-(3-fluorinatedphenyl)thiophene and poly(ethylenedioxythiophene) derivatives showing various ranges of electrochemical activity and capacitance values were evalu…
Two results about the planewave response of an isotropic, dielectric-magnetic, homogeneous, planar slab are deduced when the real parts of both the permittivity and the permeability are altered from positive to negative. First, the reflection and the transmission coefficients suffer phase reversals without change in t…
The plasma generated from a gas mixture of NH3 plus O2 (NH3 + O2) has been used to impart unique chemical and biological characteristics to polytetrafluoroethylene (PTFE). PTFE treated with NH3 + O2 plasma was physiochemically distinct from surfaces treated with plasma of either NH3 or O2 alone, as determined by elect…
It is well-documented that solid particles can be effective stabilisers of emulsions, and that the type of the emulsion formed is related, inter alia, to the particle wettability. In general it is to be expected that the free energy change accompanying the formation of a solid-stabilised emulsion will be positive and…
The crude latex of Calotropis procera was evaluated for anthelmintic activity using adult earthworms. Both fresh as well as aqueous extracts of dried latex exhibited a dose-dependent inhibition of spontaneous motility (paralysis) and evoked responses to pin-prick. With higher doses (100mg/ml of aqueous extract of dry…
A pH-responsive, sterically-stabilised polystyrene latex is used as a particulate emulsifier for oil-in-water emulsions; demulsification occurs rapidly on lowering the solution pH and the original emulsion can be reformed on pH cycling.