Materials Literature
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Abstract We investigated various Cu species responsible for highly efficient Cu–Al oxide catalyst for the water–gas shift reaction (WGSR). The formation of various Cu species was achieved by systematically varying the Cu–Al composition in the coprecipitated mixed Cu–Al oxides. The Cu–Al composition of 70:30 (Cu–Al‐7)…
We report on the fabrication of monolithic multichannel metal-semiconductor-metal photodiode arrays based on ternary (Mg,Zn)O thin films in wurtzite modification. The narrow bandwidth and the wavelength-selectivity of the device operating in visible-blind spectral range have been realized by employing a novel continuo…
We demonstrate in this study the application of square-wave voltammetry (SWV), an electrochemical technique that has been commonly employed in electroanalysis but much less utilized in electrocrystallization, in the shape-invariant size-tuning of the electrodeposited cuprous oxide (Cu 2 O) crystalline cubic particles…
Transition-metal dichalcogenide nanotubes (TMC-NTs) are investigated for their electromechanical properties under applied tensile strain using density functional-based methods. For small elongations, linear strain-stress relations according to Hooke’s law have been obtained, while for larger strains, plastic behavior…
This paper summarizes the findings of an RC performance modeling approach for evaluating various material and architecture options by which interconnect wires are incorporated onto integrated circuits. For the present dual-damascene structure, the grain boundary and surface scattering modes are identified as the top c…
Within the framework of nonlocal elasticity, the surface layer model is proposed to investigate the wave propagation characteristics in a single-layered nanoplate. The general solutions of nonlocal governing equations are expressed using partial wave technique and the nonclassical boundary conditions are derived. The…
Microcellular injection molding using supercritical fluid (SCF) as a physical blowing agent is capable of producing lightweight, dimensionally stable plastic parts while using less material. To improve strength and foamability of the biodegradable poly(butylenes adipate- co -terephthalate) (PBAT), poly(vinyl alcohol)…
The reactions between PbO, Bi 2 O 3 (or BiOCl), and SeO 2 by the chemical vapor transport method using HCl as a transporting agent afforded three novel bismuth/lead chloroselenites, namely, β-BiSeO 3 Cl ( 1 ), Bi 6 (SeO 3 ) 4 Cl 10 ( 2 ), and PbBi 10 (SeO 3 ) 12 Cl 8 ( 3 ). Compound 1 is noncentrosymmetric (space grou…
Calotropis procera (Apocynaceae), a native of tropical Africa, the Middle East and the Indian subcontinent, is a serious environmental and rangeland weed of Australia and Brazil. It is also a weed in Hawaii in the USA, the Caribbean Islands, the Seychelles, Mexico, Thailand, Vietnam and many Pacific Islands. In the na…
Using first-principles calculations, we have studied the structural, electronic, and magnetic properties in CdS monolayer doped with nonmagnetic (NM) atoms X (X = B, C, N, and O). The total magnetic moments are about 1.0, 2.0, 1.0, and 0.0 µB per supercell for the B-, C-, N-, and O-doped systems, respectively. As the…
Powder neutron diffraction and magnetometry studies have been conducted to investigate the crystallographic and magnetic structure of ${\mathrm{Bi}}_{0.8}{\mathrm{La}}_{0.2}{\mathrm{Fe}}_{0.5}{\mathrm{Mn}}_{0.5}{\mathrm{O}}_{3}$. The compound stabilizes in the $Imma$ orthorhombic crystal symmetry in the measured tempe…
We compute the optical conductivity for an out-of-plane deformation in graphene using an approach based on solutions of the Dirac equation in curved space. Different examples of periodic deformations along one direction translates into an enhancement of the optical conductivity peaks in the region of the far- and mid-…
We present a detailed investigation of the electronic phase diagram of effectively charge compensated ${\text{Ba}}_{1\ensuremath{-}x}$${\text{K}}_{x}$(${\text{Fe}}_{1\ensuremath{-}y}$${\text{Co}}_{y}$)${}_{2}$${\text{As}}_{2}$ with $x/2\ensuremath{\approx}y$. Our experimental study by means of x-ray diffraction, M\"os…
The mass attenuation coefficients, μ/ρ , half-value layer, HVL, tenth-value layer, TVL, effective atomic numbers, ZPIeff , and effective electron densities, Ne,eff , of borate glass sample systems of (100- x - y ) Na2B4O7 : x PbO : y NiO (where x and y=0, 2, 4, 6, 8 , and 10 weight percentage) containing PbO and NiO,…
The incorporation of an organic group into sol-gel-derived silica causes significant changes in the structure and properties of these materials. Therefore, the thermal treatment of organosilica materials may require a different approach. In the present paper, kinetic parameters (activation energy, pre-exponential cons…
The formation of giant-vesicle-like structures by self-assembling linolenic acid sophorolipid (LNSL) molecules is revealed. Sophorolipids belong to the class of bolaamphiphilic glycolipid biosurfactants. Interestingly, the number of double bonds present in the hydrophobic core of sophorolipids is seen to have a great…
The photodielectric effect is demonstrated in Mott-insulator BaCoSiO4 with a stuffed-tridymite-type structure under irradiation of visible light at 365 nm. The real part of dielectric permittivity is enhanced by ∼300% with little increase of tan δ in a low-frequency region. Results of diffuse reflectance spectroscopy,…
Zeolite catalyst consists of an infinite network of TO 4 tetrahedra (T = Si, Al, etc.) having various physic-chemical properties, among which the electric field effect (EFE) constituting one of the most important properties plays a major role in the heterogeneously catalytic reactions. However, up to now few works hav…
We present a study of the mechanical deformations of boron nitride nanotubes (BNNTs) in crossed junctions. The structure and deformation of the crossed tubes in the junction are characterized by using atomic force microscopy. Our results show that the total tube heights are reduced by 20%–33% at the crossed junctions…
Two stereoisomeric cardenolides, uscharin (1) and a new compound, 2'-epi-uscharin (2), were isolated from the latex of Calotropis gigantea (Asclepiadaceae). Their structures were fully elucidated based on their spectroscopic data, X-ray crystallographic data and chemical evidences. Both epimers (1 and 2) exhibited str…