Materials Literature
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A new compound based on Anderson-type polyoxometalate, [Cu(phen)H2O]2[CrH5Mo6O24] ·5H2O (1) (phen = 1,10-phenanthroline), has been hydrothermally synthesized and characterized by single-crystal X-ray diffraction, elemental analysis, IR spectrum, and thermal gravimetric analysis. Luminescent, electrochemical, and elect…
Nanotechnology presents countless opportunities to develop new and improved consumer products for the benefit of the society . A most prominent nanoproduct is nanosilver. Nanosilver particles are generally smaller than 100 nm and contain 20–15,000 silver atoms. Despite the wide application of nanomaterials, there is a…
Abstract Structural defect engineering represents a critical strategy for tailoring the physicochemical properties of carbon nanotubes toward advanced applications in catalysis, sensing, drug delivery, energy storage, and nanocomposites. In this study, defect formation in multi-walled carbon nanotubes (MWCNTs) synthes…
In this work, we report the room temperature ferromagnetism in Sn 1-x Fe x O 2 and S n1-x Ni x O 2 (x = 0.00, 0.03 and 0.05) nano-crystalline powders. All the samples were prepared using co-precipitation method. X-Ray Diffraction (XRD), transmission electron microscopy (TEM), energy dispersive x-ray analysis (EDAX), U…
Materials in biology span all the scales from Angstroms to meters and typically consist of complex hierarchical assemblies of simple building blocks. Here we describe an application of category theory to describe structural and resulting functional properties of biological protein materials by developing so-called olo…
We show that the chiral-symmetry-broken phase of massless QED in the presence of a magnetic field exhibits strong paraelectricity. A large anisotropic electric susceptibility develops in the infrared region, where most of the fermions are confined to their lowest Landau level, and dynamical mass and anomalous magnetic…
First-principles calculations of the electronic structure and vibrational modes, in a system of graphene bilayers and trilayers intercalated with alkaline earth atoms, are resented. It is found that, in similarity to the case of superconducting graphite intercalation compounds, the Fermi level is crossed by an s-band…
Proses Penelitian ini bertujuan untuk mengetahui pengaruh perlakuan kimia pada serat alam rami terhadap kekuatan tarik serat tunggal. Serat mendapat perlakuan NaOH dengan variasi konsentrasi dan waktu disusul oleh proses pembersihan dengan H2O2 dan xylene serta proses sizing menggunakan natrium silika dengan variasi k…
La–Eu solid solution nanosheets La2/3−xEuxTa2O7 have been synthesized, and their photoluminescence properties have been investigated. La2/3−xEuxTa2O7 nanosheets were prepared from layered perovskite compounds Li2La2/3−xEuxTa2O7 as the precursors by soft chemical exfoliation reactions. Both the precursors and the exfol…
The gas-phase decomposition mechanism of the photochemical and thermal reaction of cyclopropenone leading to carbon monoxide and acetylene has been investigated theoretically. We employed the B3LYP, MP2, and CASSCF methods with the 6-311 + G** basis set to determine the pathways and the potential energy surface (PES)…
YAG:Ce3+, Gd3+ nano-phosphors were synthesised by the glycothermal method. The X-ray diffraction measurements showed that the samples can be well-crystallised at 600°C. The transition electron microscope showed that the particles have sizes mostly in the range between 35 and 100 nm. The YAG:Ce nano-phosphor had a wide…
The structure of doped BiMnO3 was studied using synchrotron x-ray powder diffraction. The dopants included isovalent magnetic and non-magnetic ions in the magnetic Mn sublattice (BiMn1−xMxO3 with M=Cr, Fe and Ga), isovalent ions in the Bi sublattice (Bi0.9La0.1MnO3) and isovalent self-dopants (Bi0.95MnO2.925). The res…
Elastic recovery is one of the most important mechanical properties especially of clothing applications. This property is more and more significant when the textile structure contains elastane filament and has significant elasticity. In this study, we investigate the effect of the Dorlastan® draft and yarn count on th…
Ammonium nitrate has been attracting attention over the years as an oxidizer for clean gas-generating agents. Aminoguanidinium 5,5′-azobis-1H-tetrazolate was mixed with ammonium nitrate to improve its burning performance and the burning behavior of the formulations was studied by measuring the linear burning rate. The…
Among the biorefinery processes based on wood resources that are under current development, hemicellulose extraction using aqueous media is one of the prominent ones. The hemicelluloses in wood extracts need to be separated from inhibitory compounds. We examined the separation of sugar maple (Acer saccharum) wood extr…
Zinc sorption–desorption by sand, silt and clay fractions of six representative calcareous soils of Iran were measured. Sand, silt and clay particles were fractionated after dispersion of soils with an ultrasonic probe. Zinc sorption analysis was performed by adding eight rates of Zn from 6 to 120 μmol g−1. For the de…
The development of methods for the off–on switching of immobilization or presentation of cell-adhesive peptides and proteins during cell culture is important because such surfaces are useful for the analysis of the dynamic processes of cell adhesion and migration. This paper describes a chemically functionalized gold…
The formation of Cu precipitates and point defect clusters was investigated in two Fe–Cu binary model alloys, Fe–0.3Cu and Fe–0.6Cu, irradiated at 573 K at three different damage rates, namely 3.8 × 10−10, 1.5 × 10−8 and 5 × 10−8 dpa (displacements per atom)/s, up to about 1.6 × 10−2 dpa. Results of positron annihilat…
The evolution of topology and chemical order along the AsxGexSe1 − 2x composition-line within the As–Ge–Se glass-forming region is studied by high-resolution X-ray photoelectron spectroscopy. It is shown that cation–cation bond formation becomes a dominant process for the compositions with x > 0.09. The results explai…
The decay resistance, hardness, water absorption, and thickness swelling of a bagasse fiber/polypropylene composite were evaluated. Brown- (Coniophora puteana) and white-rot (Trametes versicolor) fungal treatments were applied for 8, 12, and 16 weeks according to BS 838:1961 with the kolle-flask method. The brown- and…