Materials Literature
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In this paper, we used a high pressure benzene-thermal method to successfully prepare novel BN porous-hollow nanorods. Herein, thiophene is introduced as a catalyst to eliminate the benzene carbonization at high temperature. The alveolate porous wall of the nanorods is stacked up by small nanoflakes aligned vertically…
Ta oxide nanotubes (NTs) were formed by the anodization of Ta at 15 V in a solution of concentrated sulfuric acid containing 0.8-1.0 M hydrofluoric acid. To study the initial stages of NT formation, FESEM images of samples anodized for very short times were obtained. The results contradict the existing explanation of…
We study the analogy between the linear elasticity theory equations and classical Maxwell equation with chiral effects and we propose a new method of an earthquake-resistant design to support conventional aseismic designs using acoustic metamaterials. We suggest a simple and practical method to reduce the amplitude of…
The orientational relaxation dynamics of semiflexible dendrimers are theoretically calculated within the framework of optimized Rouse-Zimm formalism. Semiflexibility is modeled through appropriate restrictions in the direction and orientation of the respective bond vectors, while the hydrodynamic interactions are incl…
The influence of the activity of calcium sulfate dihydrate (CaSO4·2H2O) on the hydrothermal formation of CaSO4·0.5H2O whiskers was investigated in this paper, using commercial CaSO4·2H2O as the raw material. The experimental results indicated that the activity of CaSO4·2H2O was improved after calcination of the commer…
Abstract Biogas is an attractive fuel for solid oxide fuel cell applications because of the high CO2 content. Its composition allows a high electrical efficiency without adding external water to the system. Because of the CO2 reforming reaction only a very small amount of air is needed for partial oxidation, which is…
Water-jet cavitation peening (WCP) is a new technology for the surface modification of metallic materials. The cavitation behavior in this process involves complex and changeable physics phenomena, such as high speed, high pressure, multiple phases, phase transition, turbulence, and unstable features. Thus, the cavita…
The distinctive characteristics of engineered nanoparticles (ENPs) such as higher surface-to-volume ratio find immense applications in personal care products, food packaging, drug delivery systems, therapeutics & biosensors and others. The exponential increase in the ENP containing consumer products in the last 5 year…
We have reported an eco-friendly process for the synthesis of stable silver nanoparticles from Rhizophora apiculata . The absorption maximum of silver nanoparticles as characterized by UV–Visible spectrophotometer was found to be around 422 nm. The transmission electron microscopy study revealed the presence of spheri…
In the last years the development of innovative steels with a better combination of strength and ductility has been focused on the obtainment of multiphase microstructures containing austenite. Quenched and Partitioned (Q&P) steels, recently introduced as alternative to the conventional advanced high strength automoti…
In this paper, we propose a new technique for non-intrusive drop deposition on under-liquid low energy surfaces. This technique addresses the limitations of the conventional drop deposition method, in which a needle holding the drop is brought in close proximity to the solid substrate, and the drop gets deposited on t…
Polyphosphorhydrazone (PPH) dendrimers have been grafted on silica nanoparticles, and the surface functions of the dendrimers have been derivatized to phosphonates with lateral poly(ethyleneglycol) (PEG) chains. All materials have been thoroughly characterized by MAS NMR, FT-IR, electron microscopy, TGA and elemental…
Four mononuclear lanthanide complexes, [Ln(hfac)3(depma)(H2O)] [Ln(III) = Dy (1), Gd (2)], [Dy(hfac)3(depma)2]2·H2O (3) and [Gd(hfac)3(depma)2]·2H2O (4), have been obtained (hfac = hexafluoroacetylacetonate, depma = 9-diethylphosphonomethyl anthracene) by using one (for 1 and 2) or two (for 3 and 4) depma molecules to…
Over 15 million people are living with cardiovascular disease (CVD) in the USA currently. The standard treatment for CVD is stent angioplasty for which bare metal stents are widely used; however, they are permanent and often lead to in-stent restenosis. Magnesium (Mg) alloys are perhaps the most clinically-advanced so…
Hierarchically polyhedral (octahedral and cubic) Cu7S4 hollow cages have been synthesized by an ethanol-assisted sacrificial Cu2O template approach. The above two Cu7S4 cages were assembled from nanotwinned building blocks. When evaluated for their photocatalytic performances, these cages manifest structure-dependent…
In this work we present a simple approach for the fabrication of periodically ordered pyramidal-shaped metallic nanostructures and demonstrate their efficiency as SERS active substrates. Our method for the fabrication of the plasmonic substrate is based on nanoimprint lithography and exploits the thermal properties of…
Localized laser-induced heating of an individual Au nano-dimer was quantitatively evaluated by measuring the surface-enhanced Raman scattering (SERS) from an isolated single-walled carbon nanotube (SWNT) supported above the nano-gap between the two metal centres of the dimer. The SERS measurement showed an apparent wa…
The first example of a 1 : 1 metal–organic intercluster compound with +6 charged cations and −6 charged anions was synthesized from [Zn4O{Rh(aet)3}4]6+ (aet = 2-aminoethanethiolate) and [Zn4O{Rh(L-cys)3}4]6− (L-cys = L-cysteinate). Its structure was determined by single-crystal X-ray crystallography, which revealed th…
Silver oxide (Ag2O) thin films were deposited on glass substrates using electron beam gun evaporation techniques without oxygen atmosphere. The deposited films were post annealed at 100°C, 150°C, and 200°C, respectively. The surface morphologies, structural and optical properties at different annealing temperatures we…
Fabrication of unidirectional arrays of VAGSs were achieved on nonpolar (100) and (110) SiC substrates by thermal decomposition of SiC. The morphology and structural characteristics of the VAGSs were studied and compared with that of the VAGSs grown on the (000) (C-face) SiC substrate. It is found that the basal plane…