Materials Literature
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Abstract A robust, superamphiphobic fabric with a novel self‐healing ability to autorepair from chemical damage is prepared by a two‐step wet‐chemistry coating technique using an easily available material system consisting of poly(vinylidene fluoride‐ co ‐hexafluoropropylene), fluoroalkyl silane, and modified silica n…
The covalent chemical functionalization of exfoliated hexagonal boron-nitride nanosheets (BNNSs) is achieved by the solution-phase oxygen radical functionalization of boron atoms in the h-BN lattice. This involves a two-step procedure to initially covalently graft alkoxy groups to boron atoms and the subsequent hydrol…
A stagnation-point flow reactor was used to study the catalytic activity of platinum (Pt), palladium (Pd), tin dioxide (SnO2), and 90% SnO2–10% Pt (by mass) to premixed propane and air reactants at atmospheric pressure. The Pt and Pd catalysts served as the baseline by which to compare catalyst performance. The stagna…
Abstract The nature of the electronic and local magnetic properties of ferrocene (FeCp 2 ) filled single‐walled carbon nanotubes (SWCNT) has been investigated by X‐ray absorption spectroscopy (XAS) and magnetic circular dichroism (XMCD). Metallic, semiconducting, and unsorted ferrocene‐filled tubes have been studied i…
Recently, it has been shown possible to go around basic energy-dispersion constraints that limit the bandwidth of every passive metamaterial and construct a broadband active Epsilon-Near-Zero superluminal transmission line. Published theoretical studies revealed that such a ‘tank circuit’ formed by negative capacitor…
The quality of aqueous dispersions of graphitic carbon black is investigated using rheological and conductivity measurements. Effectiveness of three non-ionic polymeric dispersants is investigated namely Triton X100, Triton X405, and Lugalvan BNO12. The adsorption isotherms of the dispersants/solid surface system are…
The ability of a nanoclay to improve the transport and mechanical properties of amorphous polyamide (aPA)‐based films was studied as a function of the draw ratio (DR) and the nanoclay content. The presence of nanoclay did not hinder the drawing ability as the maximum DR of the nanocomposites (NCs) and of the aPA were…
In this paper, we have developed a simple, facile, and efficient approach to synthesize polyaniline/Mn 3 O 4 (PANI/Mn 3 O 4 ) nanocomposites using aniline as a reducer in the presence of KMnO 4 without any additives or templates. The morphology of the composites is characterized by scanning electron microscopy (SEM) a…
The kinetics of thermal decomposition of Ca(II)-, Sr(II)- and Ba(II)- cross-linked metal–alginate biopolymeric complexes as biocatalysts have been studied using thermogravimetric (TG) and differential thermogravimetric (DTG) techniques in static air. The TG curves showed three stages of weight loss, whereas the DTG in…
This study demonstrated that a long silicon nitride pipe of several meters with adequately strong joints can be fabricated by a local‐heating joining technique. Commercially available silicon nitride ceramic pipes sintered with Y 2 O 3 and A l 2 O 3 additives were used for parent material, and powder slurry of S i 3 N…
The present study demonstrates an approach for fabricating fiber‐reinforced ceramic matrix composites ( CMC s) involving the coating of 2‐dimensional woven alumina fibers with zirconia layer by sol gel, followed by impregnation of these coated fibers with alumina matrix and pressureless sintering. To emphasize the ben…
Here, we report that highly conductive polycrystalline anatase Nb-doped TiO 2 (TNO) thin films can be prepared via crystallization of amorphous precursors under N 2 atmosphere. An optimized TNO film on a glass substrate exhibited a low resistivity of 8.4 ×10 -4 Ω cm and an absorbance of 6% at a wavelength of 460 nm. T…
In the present study, the applicability of light-emitting diodes (LEDs) to a fibrous activated carbon (FAC)/titania (TiO2) composite used for the purification of gas-phase benzene, toluene, ethyl benzene and xylene was evaluated. The surface and morphological properties of the FAC and prepared FAC/TiO2 composite were…
Shrinking phenomenon of poly(allylamine hydrochloride) (PAH)/poly(styrene sulfonate, sodium salt) (PSS) multilayer microcapsules was observed when they were incubated in alkaline solutions containing Ca(2+). The shrinking was universal to those polyelectrolyte multilayer capsules regardless of the wall thickness and w…
The domesticated silkworm Bombyx mori L. has important roles in basic biological research and applied science. To explore the practical use of transgenic technology in agricultural silkworm varieties, we fused the neomycin-resistance gene (Neo(R)) and the green fluorescent protein gene (gfp) into the piggyBac-based tr…
The mechanism of pentacene molecule decomposition by a heated tungsten (W) mesh in H 2 atmosphere is investigated for the development of an organic-thin-film deposition method. In this method, pentacene molecules come in contact with a heated W mesh before reaching the substrate in H 2 atmosphere. The decomposition re…
The aging characteristics and stability of decade (12 years) old mesoporous silica MCM-41 samples of varying pore size and wall thickness has been tracked and compared with freshly synthesized samples. It was found that calcined forms of hydrothermally synthesized MCM-41 samples are, depending on their initial wall th…
Supramolecular assembly through complementary interaction between molecular subgroups belonging to phase-separating polymer species offers a great opportunity, not only for constructing nanoscale soft templates reminiscent of conventional block copolymer morphologies, but also for tailoring surface properties by facil…
Counting compounds (rather than papers or citations) offers a new perspective for quantitative analyses of research activities. First of all, we can precisely define (compound-related) research topics and access the corresponding publications (scientific papers as well as patents) as a measure of research activity. We…
One-dimensional light harvesting structures with a realistic geometry nano-patterned on an opaque metallic film are optimized to render high transmission efficiencies at optical and infrared frequencies. Simple design rules are developed for the particular case of a slit-groove array with a given number of grooves tha…