Materials Literature
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For the first time, direct template-free electrodeposition of aligned NiZn nanofilaments was achieved on a tungsten substrate in a quiescent Lewis acidic ZnCl2-EMIC ionic liquid containing NiCl2 at 150 degrees C by applying an extremely large deposition overpotential.
Rationally designed racemic and quasiracemic sulfonamidecinnamic acids assemble to give hydrogen-bonded dimers with coplanar alignment of neighboring olefins. The quasiracemate phase contains near inversion-related motifs with chemically distinct components forming supramolecular heterodimers that undergo asymmetric p…
On-board autothermal reforming, which had been intended for mobile fuel cell applications, has evolved into exhaust gas reforming—a technology that could make it more difficult for the internal combustion engine to be displaced. Among the technical barriers that prevented implementation of fuel cell drivetrains based…
Two types of indenofluorene-based low bandgap conjugated polymers, poly(6,6′,12,12′-tetraoctylindeno[1,2-b]fluorene-co-4,7-bis(2-thienyl)-2,1,3-benzothiadiazole) (PIF-DBT) and poly(6,6′,12,12′-tetraoctylindeno[1,2-b]fluorene-co-5,7-dithien-2-yl-thieno[3,4-b]pyrazine) (PIF-DTP), were synthesized and characterized for u…
Porous hematite (α-Fe2O3) with branched nanostructures such as V and Y shapes were prepared through dehydration of goethite (α-FeOOH) precursor, while α-FeOOH branched nanostructures are self-organized by straight nanorods via facet-mediated oriented attachment mechanism at high pH without the use of organic additives…
A miniature catalytic reactor has been developed for the oxidation of alcohols with O2 in supercritical CO2. Particular attention has been given to ensuring good mixing of O2 and CO2 prior to contact with the substrate. The reactor was optimised using the oxidation of 2-octanol over 5% Pt + 1% Bi on Al2O3 and the mass…
We report the existence of reptation motion typical of entangled polymer chains in dense polymer monolayers spread at the air–water interface. Ellipsometry determinations of the layer thickness reveal a thickening of the layers in the semi-dilute region, enabling the existence of entanglements. Relaxation measurements…
This study was conducted to determine the physical characteristics of activated carbon prepared from durian shell in varied heating durations from 10 min to 30 min and activation temperatures of 400C and 500C. Durian shells have been characterized in term of ultimate and proximate analysis, chemical composition and…
The study on solubility yields information about the structure and intermolecular forces of drugs. Use of the solubility characteristics in bioavailability, pharmacological action and solubility enhancement of various poorly soluble compounds is a challenging task for researchers and pharmaceutical scientists. General…
New complexes of isonicotinoylhydrazone-9-anthraldehyde with Cu(II), Co(II) and Ni(II) have been prepared and characterized by analytical and physico-chemical techniques, such as elemental and thermal analyses, magnetic susceptibility and conductivity measurements, and electronic, EPR and IR spectral studies. The infr…
Electrochemical CO oxidation by several carbon-supported rhodium tetraphenylporphyrins with systematically varied meso-substituents was investigated. A quantitative analysis revealed that the p-substituents on the meso-phenyl groups significantly affected CO oxidation activity. The electrocatalytic reaction was charac…
Laser two-photon polymerization (LTPP) has been widely reported as a tool for three-dimensional micro/nanofabrication. Femtosecond lasers are employed to form nanostructures in photosensitive resins with subwavelength resolution. We demonstrate high throughput large scanning area LTPP system based on linear motor driv…
This paper investigates the application of frequency- selective surface (FSS) in re∞ectarray antennas for the purpose of reducing radar cross section (RCS) level. Difierent from previous reports, the presented band-stop FSS structure is also characterized by the suppression of surface waves, which makes a contribution…
Achiral substituted acetylene monomers undergo aqueous catalytic emulsion asymmetric polymerizations in chiral micelles consisting of SDS and amino acid, providing optically active helical polymer emulsions. The asymmetric polymerizations lead to one-handed helical polymers, which are the origin of the optical activit…
This tutorial review describes the role of synchrotron-based techniques in the study of the formation of Crystalline Nanoporous Framework Materials (CNFMs), such as zeolites, aluminophosphates (AlPOs) and metal organic frameworks (MOFs). Initially, a general formation process for CNFMs is described and the 'tool kit'…
The breathing behaviour of MIL-53(Cr) and MIL-53(Fe) upon water and ethanol desorption has been investigated by combining complementary experimental techniques including ThermoGravimetry Analysis (TGA), Differential Scanning Calorimetry (DSC) and Complex Impedance Spectroscopy (CIS). It was shown that two stages of so…
Curiosity has its own reason for existing. For thousands of years, mankind has been harnessing its curiosity into inquiry and the process of scientific methodology. If we consider technology as an engine, then science is its fuel. Science of miniaturization (nanotechnology) is manipulating matter at nanometer level an…
We have shown in previous works that the use of double-layer frequency selective surface (FSS) in the superstrate of an electromagnetic band-gap (EBG) antenna provides a radiation bandwidth improvement. Nevertheless, such an antenna is still not directive enough for some applications. To increase its gain, the antenna…
Functionalized 4,2′:6′,4″-terpyridine ligands have been used to provide a divergent N,N′-donor set for the formation of coordination polymers containing {Zn2(µ-OAc)4} or {Mn3(µ-OAc)4(OAc)2} scaffolds. Single-stranded coordination polymers are produced from the reactions of 4′-(4-bromophenyl)-4,2′:6′,4″-terpyridine (1)…
Partially oxidized zirconium carbonitride (Zr-CNO) powders were evaluated as a nonprecious metal cathode for polymer electrolyte fuel cells (PEFCs). Zr-CNO powders were prepared from zirconium carbonitrides with heat-treatment under containing 2% and 0.25% gas at . Voltammetry was performed to evaluate the catalytic a…