Materials Literature
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The tetrapod-like whiskers (T-ZnO), nanoaeroplanes, nanocombs, nanobelts, bead-like nanoforms and many other forms of hexagonal zinc oxide were synthesized by the chemical deposition process (CVD). From the experimental results it can be seen that the composition of source gases and the speed of oxidation are essentia…
Abstract Specific small amounts of amino acids caused agglomeration of L‐valine (L‐Val) crystals during evaporative crystallization from aqueous solutions. The agglomeration of L‐Val occurred only under acidic condition when guest amino acids satisfied several conditions. Only L‐form amino acids that have carboxylic a…
The magnetic system of a Dresden electron beam ion source (EBIS) generating the necessary magnetic field with a new type of permanent magnet made of high energy density NdFeB-type material operable at temperatures above 100 °C has been investigated and tested. The employment of such kind of magnets provides simplified…
This paper reports a new study where relatively long-term tests of about a 1000 h are performed on several planar anode-supported solid oxide fuel cells. The cell electrochemical behaviors are studied by using voltage-current density measurement, electrochemical impedance spectroscopy, scanning electron microscopy, an…
ZnO nanorods modified with Ag were synthesised by ethanol thermal method and were characterised by X-ray diffraction, SEM, energy dispersive spectroscopy, Fourier transform infrared spectroscopy and ultraviolet–visible. Its antibacterial properties and synergistic antibacterial properties with ciprofloxacin hydrochlor…
The aim of this paper is to study the effect of hydrogen injection into natural gas transient flows on the mechanical strength of natural gas pipelines. The governing equations of hydrogen-natural gas mixtures are two nonlinear partial differential equations. The fluid pressure and velocity are considered as two princ…
In this paper, we study the electronic structure of monolayer materials based on a double hexagonal geometry with (1×1) and [Formula: see text] superstructures. Inspired from the two-dimensional root system of an exceptional Lie algebra called G2, this hexagonal atomic configuration involves two hexagons of unequal si…
Polyaniline film as primer coating was deposited on stainless steel (SS) in aniline containing aqueous oxalic acid solution, and subsequent synthesis of top PPy film with 2-((5-ethylthiophen-2-yl) methylamino)-1-phenylpropan-1-ol (AAN) compound of different concentrations was achieved in acetonitrile-LiClO4 successful…
Atomic force microscopy (AFM) of microfibres fabricated from the self-assembly and fracturing of silica nanoparticles reveals mesoporous structure with hcp packing. Pore size distribution for (20 - 30) nm sized particles are calculated to lie within rtet ~(2.2 - 3.3) nm and roct ~(4.2 - 6.2) nm for the octahedral and…
Adsorption of O, O 2 , and OH on Pt(111), Pt(100), and Pt(110) surfaces was studied using periodic DFT calculations. It was found that generally adsorbate-surface interaction strengths increase with the decrease in surface packing density. On the Pt(111) surface the dissociation of O 2 molecule was not predicted, but…
In this study, effects of solidification rate and 0·2, 0·5 and 1·0 wt-% Sb additions on the microstructure and mechanical properties of AM60 magnesium alloy were investigated. AM60 and AM60+xSb magnesium alloys were cast in a step-like mould with three different cooling rates. As cast microstructures of the different…
A core–shell cobalt ferrite/silicon dioxide/europium ion-doped Y 2 O 3 (CoFe 2 O 4 /SiO 2 /Y 2 O 3 :Eu 3+ ) composite was synthesized by a facile layer-by-layer method. Magnetization of the composite under an external magnetic field of approximately 0.25 T enhanced the photoluminescence (PL) intensity by 56%. The rema…
In this paper, we present an innovative method for the synthesis of CdTe/CdSe type-II core/shell structure quantum dots (QDs) using 'greener' chemicals. The PL of CdTe/CdSe type-II core/shell structure QDs ranges from 600 to 820 nm, and the as-synthesized core/shell structures show narrow size distributions and stable…
Species of Haliotis (abalone) show high variety in structure and mineralogy of the shell. One of the European species (Haliotis tuberculata) in particular has an unusual shell structure in which calcite and aragonite coexist at a microscale with small patches of aragonite embedded in larger calcitic zones. A detailed…
The advancement of supercapacitor electrodes is predicated using simple and efficient synthesis methods. In this study a simple electrochemical precipitation method is presented for the synthesis of an α-nickel hydroxide (α-Ni(OH)2) electrode directly on a Ti substrate without any templates or surfactants. The α-Ni(OH…
Abstract A highly active Cu‐based Deacon catalyst with an enhanced lifetime was developed by combining two corrosion‐resistant high‐throughput reactor setups in this combinatorial study. Catalyst activities were studied in a sequential 10‐fold reactor equipped with online MS. For accelerated catalyst ageing studies, a…
In this paper, a new NOx removal control technique coupled with energy recovery in a sintering plant is proposed. On the basis of energy calculation, it was found that the energy of sintered ore was large enough to supply the energy necessary to heat effluent flue gas to the catalytic temperature window. Moreover, the…
The performance of a polymer-stabilized blue phase system based on a nematic host with large dielectric anisotropy and a chiral dopant with high helical twisting power is investigated and the influence of the reactive monomer composition on the electro-optic characteristics is studied. Field-induced birefringence with…
Abstract Distances between amine groups were varied through three different approaches, which were found to play a crucial role in influencing the intrinsic fluorescence properties. Experimental data confirmed that the short distance between amine groups favored the intense emission and red shift of the maximum wavele…
Monoclinic Yb-sensitized (Tm, Ho)-doped KLu(WO4)2 nanocrystals of ~100 nm size have been synthesized by the modified Pechini sol-gel method. Their diode laser near-infrared (~980 nm) excited upconversion emission properties have been characterized at power densities in the range 30-355 W cm(-2). Bright white light com…