Materials Literature
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Pure, fully textured and c-axis oriented Sr2FeMoO6 films were deposited on SrTiO3 and (LaAlO3)0.3(Sr2AlTaO6)0.7 substrates with different thicknesses. A decrease in substrate induced strain was observed in films on SrTiO3 with increasing thickness, but the strain in the films on (LaAlO3)0.3(Sr2AlTaO6)0.7 was nearly co…
Beaded fibers are often observed in electrospinning. However, its formation mechanism is not well understood. A mathematical model for pulsation of the charged jets during spinning is proposed to reveal the phenomenon of beaded fibers, and the main factors for beaded fibers are elucidated.
Two novel compounds, 4-(pyren-1-ylimino)methylphenol and 4-[(triisopropylsilyl)oxy]phenylmethylenepyren-1-amine) were synthesized. Solutions of 4-(pyren-1-ylimino)methylphenol in dimethyl sulfoxide (DMSO) are colorless, but on addition of cyanide and fluoride they become colored due to the deprotonation of the chemose…
Silver nanoparticle-loaded sulfadiazine/polyvinyl alcohol nanorods (Ag-SD/PVA NRs) were successfully synthesized in an ammonia solution, and were characterized by XRD, FT-IR, SEM and TEM.
Optical spectra and conductivity of LaF 3 , containing Sm 2+ , were studied. Three groups of emission lines near 560-620 nm, 650-690 nm and 680-770 nm at 7.9 K were attributed to the transitions from 5 D 2 , 5 D 1 , 5 D 0 to 7 F j levels of Sm 2+ . Emission of 5 D 0 has decay time 8.9 ms and quenching at temperatures…
Perovskite oxides of La0.6Sr0.4Co0.3Fe0.8O3, (LSCF) were synthesized as a new cathode material for intermediate temperature-solid oxide fuel cell (IT-SOFC) by gel-combustion method. Nitrates of La, Sr, Co and Fe were used as precursor and citric acid as self combustion reaction matter. The as-prepared cathode material…
The present research attempts to explain dynamic pull-in instability of functionally graded micro-cantilevers actuated by step DC voltage while the fringing-field effect is taken into account in the vibrational equation of motion. By employing modern asymptotic approach namely Homotopy Perturbation Method with an auxi…
SOFC short stacks with thin-film electrolyte anode-supported cells were operated for up to ∼3,000 h and post-test characterized. The cells consisted of thin electrolyte films (≤ 3 μm) and LSCF or LSC cathodes. Typical manganese-oxide chromium evaporation protection layers and perovskitic cathode contact layers were us…
The polyimide/potassium tantalite niobate (PI/KTa0.5Nb0.5O3) nanoparticle composite model is established by a multi-scale modeling method. The influences of KTa0.5Nb0.5O3 nanoparticles with different sizes (5.5, 8.0, 9.4, 10.5, 11.5 Å) on the structure, elastic modulus and interaction energy of the polyimidebased nano…
As the Er 3+ concentration increases, the luminescence can be tuned from green to red and the red emission intensity reaches its maximum with an Er 3+ concentration as high as 10 mol%.
Maleated polyethylene (MAPE) was used in this study as a model matrix for hosting hydrophobic nanoclay (C15A) and hydrophilic nanoclay (C30B), to investigate the effect of nanoclay loading on the bulk properties of the composites. Composites were prepared by melt‐blending technique, with varying the loading from 0 to…
The optical and electrical properties of mesogenic metal-free and metalated phthalocyanines (PCs) with a moderately sized and regioregular alkyl periphery were investigated. In solution, the individualized molecules show fluorescence lifetimes of 4-6 ns in THF. When deposited as solid thin films the materials exhibit…
Lateral size, surface chemistry, and properties are varied in inorganic monolayers based on a transition metal-oxide. A variety of inorganic monolayers with their emergent properties have been studied in recent decades. However, it is not easy to tune the lateral size, surface chemistry, and dispersibility of monolaye…
In this study, we applied an electrospinning (ES) method, which is mainly employed in the textile industry, to the field of pharmaceuticals. We developed and modified an ES instrument and then utilized it to produce methacrylic acid copolymer S (MAC) nano-fibers to prepare tablets. By attaching a conductor rod made fr…
Second harmonic generation and piezoelectric response from LiTaO 3 nanorods.
Associative polyurethane (PU) thickener has been synthesized by preparing the prepolymer with the reaction of polyethylene glycol (PEG) and isophorone diisocyanate (IPDI), which then end‐capping with long‐chain alkanol. The synthesis process, as well as hydrophilic chain length, theoretical molecular weight, solvent r…
Lithium meta titanate (Li2TiO3) is one of the most promising tritium breeding candidate materials. In this study, the nanocrystallites lithium-titanate with hexagonal and cubic crystal structures were synthesized at low temperature, 200°C for 12 h by the hydrothermal method. The results showed that the monoclinic phas…
Silsesquioxane (SQ) membranes derived from 3-methacryloxypropyltrimethoxysilane and bis(trimethoxysilyl)ethane were successfully fabricated at low temperature via photo-induced sol-gel processing. Radical and cationic polymerization of SQ membranes showed high degrees of separation factor and permeance for water/isopr…
Upconversion (UC) photoluminescent nanocrystals of Ln 3+ -doped KLu 3 F 10 have been synthesized via a facile and environmentally-friendly hydrothermal route.
We report a ferromagnetic graphene field-effect transistor with a band gap.