Materials Literature
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<div class="section abstract"><div class="htmlview paragraph">An advanced diesel aftertreatment system utilizing Selective Catalytic Reduction (SCR) with urea for lean nitrogen oxides (NO<sub>x</sub>) control was tested on a 2.7L V6 Land Rover vehicle to demonstrate the capability of achieving…
A novel strong‐fluorescent Tb‐containing hydrotalcite‐like compound (Tb‐HTlc) was prepared using the coprecipitation method. The Tb‐HTlc has a special layer structure, in which aluminum(III) was partially substituted by terbium(III) in the hydrotalcite‐like layers; acetylacetone and 1,10‐phenanthroline were dispersed…
Abstract In this paper, flower‐, star‐, and chain‐like hierarchically nanostructured nickel crystals as well as [Ni(N 2 H 4 ) 2 ]Cl 2 nanorods were first synthesized by a simple reduction method. This method is template‐free, environmentally benign, and can be carried out at low temperature (60 °C) with high efficienc…
Abstract Oxygen mobility on Pd/Al 2 O 3 catalysts is generally considered to be rather slow compared with other noble metal catalysts. This study shows that oxygen can be exchanged from gas‐phase CO 2 produced during, for example, methane oxidation, more rapidly than from O 2 molecules. The oxygen exchange from C 18 O…
Abstract BACKGROUND: Although chlorination is an effective and widely employed method of water disinfection, it suffers serious drawbacks such as the formation of toxic chlorinated by‐products. Therefore, other disinfection technologies have been researched and developed, including advanced oxidation. RESULTS: The eff…
The influences of annealing temperature on the phase transition, dielectrical, and ferroelectric response of 0.65Pb(Mg 1/3 Nb 2/3 )O 3 −0.35PbTiO 3 (PMN−35PT) have been investigated in detail. X‐ray diffraction combined with Raman spectra analysis indicated that the samples annealed below 1100°C show a complete perovs…
<div class="section abstract"><div class="htmlview paragraph">Fuel injectors capable of rapidly electrically heating ethanol for cold starts below ethanol's flash point temperature have been developed for the Brazilian transportation market. These injectors also enable the enleanment of 20°C cold start fue…
The adsorption equilibrium, kinetics, and enthalpy of nitrous oxide adsorption on zeolites 4A and 13X were measured volumetrically at temperatures of (194, 237, and 298) K and gas pressure up to 108 kPa. It was found that zeolite 4A adsorbs more N 2 O than 13X in all of the conditions used. The Langmuir, Freundlich, a…
Simultaneous synchrotron radiation and transport measurements for the organic thyristor family compound θ-(BEDT-TTF) 2 RbZn(SCN) 4 have revealed the presence of microscopic competing domains between the twofold and 3 ×4 charge orderings in a triangular lattice. In contrast to conventional correlated electron systems,…
The occurrence of ferromagnetism in nanoparticles of otherwise non-magnetic oxides seems to be well established. It is, however, necessary to understand the origin of ferromagnetism in these materials. Herein, we present a combined study of the magnetic properties and photoluminescence (PL) behavior of nanoparticles o…
Cermets of nickel (Ni)‐ and Ca‐doped LaNbO 4 (Ni–LCNO) with a composition ranging from 20 to 70 vol% Ni have been prepared by conventional mixing, cold‐pressing, sintering, and reducing NiO–LCNO composites. They have been characterized by scanning electron microscopy, X‐ray diffraction, four‐point DC conductivity, and…
Lead selenide (PbSe) nanowires were grown by magnetron sputtering on silicon with silicon dioxide (SiO2/Si) substrates, and characterized by scanning electron microscopy, x-ray diffraction, Fourier transform infrared spectroscopy, photoluminescence, and x-ray photoelectron spectroscopy. Closely packed PbSe nanowires o…
The hydrogen permeation behaviour of X56 steel under loading in a simulated atmospheric environment was investigated. The results show that the hydrogen permeation current increases as the elastic deformation of the steel increases. In addition, the hydrogen permeation current decreases with an increase in plastic def…
Experimental studies demonstrated that alcohols and amines can undergo a CF(3)COOAg-catalyzed nucleophilic addition at the outer C=N position of Ag(III) NCPs, leading to C-3-alkoxylated Ag(III) NCPs, which supports the computational result that the C=N bond on the periphery of Ag(III) NCPs is partially isolated from t…
<div class="section abstract"><div class="htmlview paragraph">A laboratory study was performed to assess the effects of sulfur poisoning and desulfation temperature on the NO</div><div class="htmlview paragraph"> conversion of a LNT+(Cu/SCR) in-situ system. Four LNT+(Cu/SCR) systems were aged f…
Poly(3,4-ethylenedioxythiophene) and tungsten oxide films with enhanced electrochromism were prepared by templated electrodeposition on flexible transparent carbon nanotube electrodes. The nanostructured porous architectures obtained by coating the nanotube templates exhibited high contrast with faster switching respo…
The effects of molecular structure and architecture of multiple‐functional groups, citric acid‐type compounds on the yield stress of 55 wt%α‐Al 2 O 3 dispersions were evaluated. They are cis ‐ and trans ‐aconitic (or dehydrated citric) acids, and propane‐1,2,3 tricarboxylic acid. These compounds possessed distinct dif…
<div class="section abstract"><div class="htmlview paragraph">DME has lower energy content per unit volume than that of light oil (typical petroleum based diesel fuel). Roughly 1.8 times the quantity of DME is required to obtain equivalent content of light oil. DME also exhibits higher compressibility and…
Cooperative effects play a vital role in protein adsorption events on biological interfaces. Despite a number of studies in this field molecular adsorption mechanisms that include cooperativity are still under debate. In this work we use a Monte Carlo-type simulation to explore the microscopic details behind cooperati…
We investigate the bending properties of carbon nanoribbons by combining continuum elasticity theory and tight-binding atomistic simulations. First, we develop a complete analysis of a given bended configuration through continuum mechanics. Then, we provide by tight-binding calculations the value of the bending rigidi…