Materials Literature
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Luminescence properties of the two series of the La 1-x Eu x VO 4 (x ranges from to 0.3) solid solutions synthesized by the solid state and co-precipitation methods were investigated.. Luminescence spectra of the investigated samples consist of narrow spectral lines caused by inner f - f electron transitions in the im…
A small electrical explosion of wire (EEW) setup for nanopowder production is constructed. It consists of a low inductance capacitor bank of 2 μF–4 μF typically charged to 8 kV−30 kV, a triggered gas switch, and a production chamber housing the exploding wire load and ambient gas. With the EEW device, nanosize powders…
Low volatile organic compounds (VOCs) coatings are increasingly attractive due to both environmental concerns and high protective performance. High solid systems play a central role in this scenario. In this work, 100% solids polyurethane-urea hybrid coatings have been prepared. The coatings were prepared using methyl…
NiO/AC particles were synthesized by infinite dilute method. The synthesized NiO/AC particles with a structure of cubic crystalline phase are well dispersed and bulk like. The electrochemical tests show that the NiO/AC particles have relatively high capacitance and excellent capacitive retention. The good structure an…
The purpose of the study was to evaluate resistance to electrochemical corrosion of magnesium alloy WE43 after plastic working. Potentiodynamic and immersion corrosion tests were performed in solutions with concentration of 0,01 – 2 M NaCl. The tests of microstructure of magnesium alloy after its exposure in NaCl solu…
Abstract Bislang ist die Thermoelektrik eine Nischentechnologie, die ihre Stärken hat, wenn es auf Zuverlässigkeit oder Komfort ankommt. Die Technologie bietet aber darüber hinaus in Zukunft die Chance, Energie effizienter zu nutzen und die CO 2 ‐Emmission zu reduzieren. Thermoelektrik kann zur Abwärmenutzung angewend…
An efficient route to meso-β doubly connected fused porphyrin dimers was developed. Synthesis of the dimers incorporated two successive C–C bond-forming steps selectively coupling unsubstituted meso- and β-positions. Using Cu(BF 4 ) 2 as an oxidant in nitromethane solvent, the radical coupling of Cu(II) -porphyrins oc…
A phenomenological theory has been proposed for the diffusionless structuralphase transitions in BaTiO3single crystal and PbZrO3 -xPbTiO3 solid solution here. It has been found that for BaTiO3single crystal, both the phase transitionsand the crystal structurescan be predicted with the crystalline anisotropy constants…
A targeting and photothermal drug delivery system of doxorubicin (DOX) was successfully developed based on the AS1411 aptamer modified single wall carbon nanotubes (SWNTs). In this study, DOX was efficiently loaded onto SWNTs (DOX-AS1411-SWNTs) with drug loading of 121% and released from DOX-AS1411-SWNTs in a pH-depen…
Highly oriented M-type barium ferrite (BaM) thin films were deposited by sputtering on Pt-coated Si Substrate with different substrate temperatures. X-ray diffraction and atomic force microscopy results show that BaM films have crystal texture of c-axis grains perpendicular to film plane with apparent hexagonal morpho…
Room temperature (RT) ferromagnetism (FM) was achieved in H2/N2 annealed Co-doped ZnO films on silicon substrates and we got annealing temperature, Tan, dependence of saturation magnetization, Ms, which increased and finally reached a maximum as Tan elevated. The curve of Ms versus Tan seems like three steps. Surprisi…
ZnAl layered double hydroxides (LDHs) were prepared by urea hydrolysis-based coprecipitation for removing phosphate from aqueous solutions. The chemical formula of the product was determined as Zn5.54Al3.02(OH)8.73(CO3)0.57Cl5.66·7.84H2O. Chloride ion was the major interlayer anion of the ZnAl LDHs. Adsorption of phos…
We present the direct wall number control of carbon nanotube (CNT) forests grown on engineered iron (Fe) catalysts in a catalytic chemical vapor deposition (CVD). Engineered Fe catalysts were fabricated by annealing thickness-tuned (0.8-3 nm) Fe films with small thickness variations prepared by a low-deposition-rate s…
Thin lms of MnO2, Mn2O3, and Mn3O4 have been grown from single precursor solution by varying the post-annealing condition on the glass and corning substrate using a solgel technique. By annealing in air and at temperature between 600 and 800 C, cubic Mn2O3 lms could be formed. The lms were thermally annealed at dieren…
Ultraviolet (UV) photodetector constructed by ZnO material has attracted intense research and commercial interest. However, its photoresistivity and photoresonse are still unsatisfied. Herein, we report a novel method to assemble ZnO nanoparticles (NPs) onto the reduced graphite oxide (RGO) sheet by simple hydrotherma…
In this paper we report the use of triethylene glycol reduced graphene oxide (TRGO) as an electrode material for non-aqueous energy storage devices such as supercapacitors and Li-ion batteries. TRGO based non–aqueous symmetric supercapacitor is constructed and shown to deliver maximum energy and power densities of 60.…
This paper describes the preparation, and voltammetric application of a hybrid nanocomposite formed by interaction of a octa(3-chloropropyl)octasilsesquioxane (SS) modified with 4-amino-5-4 (pyridyl)-4H-1,2,4-triazole-3-thiol (SA), and its subsequent reactions in two steps, first with copper and so hexacyanoferrate (I…
The nanometer-range depth resolution of secondary ion mass spectrometry (SIMS) profiles in diamond was achieved by the determination of the depth resolution function (DRF). The measurement of this DRF was performed thanks to isotopic-enriched diamond delta structures composed of 12 C and 13 C. The artificial SIMS broa…
The alternate vacuum evaporation of SiO and SiO2 from separate sources is used to produce amorphous a-SiO x /SiO2 multilayer nanoperiodic structures with periods of 5–10 nm and a number of layers of up to 64. The effect of annealing at temperatures T a = 500–1100°C on the structural and optical properties of the nanos…
This paper deals with electromigration tests on Dual Damascene TSV, a low-cost TSV process. Up- and down-stream stress configurations are investigated and we demonstrate the independence of the failure's localization with the electron flow direction. Thus, unlike the standard (single damascene) TSV process, the failur…