Materials Literature
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In the present study the catalytic oxidation of an industrial organic solvent consisting predominantly of C-9 to C-10 paraffins and napthtenics and derived from low aromatic white spirit on CuO and Pt catalysts was investigated at ambient pressure and temperatures between 330 and 770 K. Catalysts were prepared in the…
We report the growth and properties of heterostructure thin films consisting of a thin overlayer of p-NiO 1+ x on Zn 0.95 Ga 0.05 O (GZO) by pulsed laser deposition for transparent electrode applications. The GZO films with a thin p-type NiO 1+ x overlayer exhibited a higher work function. It is envisaged to facilitat…
Abstract Hydrophobic titanium oxide (TiO 2 ) film formed on metallic titanium substrate in hydrogen peroxide solution with a subsequent oxidation under air atmosphere. Component, microstructure, and hydrophobicity of the oxide film were characterized by X‐ray diffraction, scanning electron microscope, and water contac…
We present a novel approach to reverse Monte Carlo (RMC) modeling, SpecSwap-RMC, specifically applicable to structure modeling based on properties that require significant computer time to evaluate. In this approach pre-computed property data from a discrete set of local configurations are used and the configuration s…
Abstract This study investigates thermal aging induced effects on the surface properties of model and commercial automotive catalysts for Natural Gas Vehicles, by means of X‐ray photoelectron spectroscopy and infrared spectroscopy of chemisorbed CO as a probe molecule for noble metals. Post‐combustion catalysts for th…
For equations of generalized Cahn–Hilliard type we present an a posteriori error analysis that is robust with respect to a small interface length scale γ . We propose the solution of a fourth order elliptic eigenvalue problem in each time step to gain a fully computable error bound, which only depends polynomially (of…
Two new homologous series of compounds with a heterocyclic ring having sulfur and oxygen as a hetero atom derived from p-hydroxy acetophenone and alkoxy aniline containing cinnamate-azomethine as central linkages have been synthesized. viz. 4(furalacryloxy) α-methyl benzylidine-4′-alkoxy aniline and 4(thianylacryloxy)…
Abstract The corrosion behavior of Ti–5Ag–xFe alloys (x = 1, 2.5, 5 wt%) in neutral saline solution was investigated by the open‐circuit potential (OCP), potentiodynamic polarization, electrochemical impedance spectroscopy (EIS), and potentiostatic tests. The microstructural observation indicated that β‐Ti phase was r…
The synthesis and liquid crystalline properties of new dimers with triphenylene donor (D) core tethered via a flexible spacer to a monofunctionalized anthraquinone acceptor (A) core, D-A, are reported. These dimers have hydroxyl (D-A(OH)) or acetyloxy (D-A(OAc)) functional group. The linear trimers, D-A-D, are also re…
A phospholipid-protein hybrid nanostructure was found to reveal various hydrodynamic diameters dependent on the amount of the drugs incorporated, which could be over 10 times larger than that of the starting nanostructure. This observation was likely related to the thermal stabilization of the nanostructure during inc…
A high efficiency dye-doped cholesteric liquid crystal (CLC) is demonstrated by optimizing the dye concentration and using an electrically tunable nematic liquid crystal (NLC) phase retarder. The state of polarization of laser emission in CLC lasers, contrary to our expectations, due to the refractive index mismatch a…
Abstract Hydroxyapatite (HAp) nanoparticles synthesized via microwave irradiation. Polypyrrole (PPy)/HAp nanocomposite was obtained using electropolymerization on nitinol (Ni) titanium (Ti) substrates. Fourier transform infrared was employed to characterize the nanocomposite formation. Electrochemical properties of th…
In spite of numerous papers dedicated to the subject, the behavior of the helical pitch in the smectic C* phase near the smectic A phase is still controversial. In particular, it is not clear to what extent the measured pitch values are influenced by surface effects. In order to shed light on this problem, careful pit…
We investigate the low-temperature electron, lattice, and spin dynamics of ${\text{LaMnO}}_{3}$ (LMO) and ${\text{La}}_{0.7}{\text{Ca}}_{0.3}{\text{MnO}}_{3}$ (LCMO) by resonant pump-probe reflectance spectroscopy. Probing the high-spin $d\text{\ensuremath{-}}d$ transition as a function of time delay and probe energy,…
As the current global environmental concerns have prompted regulations to reduce the level of aromatic compounds, particularly benzene and its derivatives in gasoline, ydroisomerisation of n-alkanes is becoming a major alternative for enhancing octane number. Series of solid acid catalysts comprising of Freidel crafts…
The growth of Cu 2 O crystallites electrodeposited in a nitrate bath with sodium dodecyl sulfate (SDS) under superimposition of a high magnetic field up to 12 T was investigated. Scanning electron micrographs show that the morphology of the crystallite changes from a starlike shape to a well-faceted octahedron with ma…
Previously we reported the synthesis of unique nanotubular bimetallic oxides, ZrO 2 −TiO 2, in supercritical carbon dioxide (scCO 2 ). This study examines the role of the solvent on crystal growth by synthesizing the bimetallic nanomaterials using several common sol−gel solvents of varying dielectric strength, includi…
We demonstrate a versatile approach to align lamellar lyotropic mesophases with the use of magnetic fields. It is based on continuous rotation of the sample on an axis perpendicular to the magnetic field direction during a single cooling ramp across the order-disorder transition of the system. The process yields mater…
Catalytic pyrogenation of methane gas in the presence of Ni nanoparticles was employed to synthesize C/Ni composite nanoparticles at various reaction temperatures. The Ni nanoparticles prepared by the arc-discharge method served as a catalyst to decompose the hydrocarbon molecules and also provided isolated templates…
We report here for the first time on the synthesis of nanoparticles of the p-type transparent conductor LaOCuS. Nanoparticles were obtained via a solvothermal route in ethylenediamine with dehydrated lanthanum chloride (LaCl(3).7H(2)O), copper monooxide, and elemental sulfur as precursors. Powder X-ray diffraction, sc…