Materials Literature
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The synthesis of atomically thin transition-metal oxide nanosheets as a conceptually new class of materials is significant for the development of next-generation electronic and magnetic nanodevices but remains a fundamental chemical and physical challenge. Here, based on a "template-assisted oriented growth" strategy,…
A control over the nature of deposit pattern obtained after the evaporation of solvent from a sessile drop containing dispersed materials has been demonstrated to have applications in materials engineering, separation technology, printing technology, manufacture of printed circuit boards, biology, and agriculture. In…
We present a simple and efficient method to generate any cylindrical vector vortex (CVV) beams based on two cascaded metasurfaces. The metasurface works as a space-variant Panchratnam-Berry phase element and can produce any desirable vortex phase and vector polarization. The first metasurface is used to switch the sig…
High Resolution Image Download MS PowerPoint Slide The goal of this research was to study the kinetics of the reaction of diglycidyl ether of bisphenol A (DGEBA)-based epoxy resin cured with sebacic acid as a biobased hardener in the presence of three different loadings of epoxidized soybean oil (ESO) (i.e., 10, 20, 3…
Abstract A strategy for capacity and cyclability enhancement of room‐temperature sodium–sulfur (Na–S) batteries is reported by inserting a nanostructured, carbon‐based interlayer between the sulfur cathode and the separator. The interlayer localizes the soluble polysulfide species and prevents its migration to the sod…
Surface engineering of crystals at nanoscale level by precisely and rationally exposing specific facets proved to be highly effective in enhancing the performance of inorganic functional nanocrystals. To do so, a comprehensive understanding of the growth mechanism was of great importance. By using hematite (α-Fe2O3) a…
Herein, porous nano-silicon has been synthesized via a highly scalable heat scavenger-assisted magnesiothermic reduction of beach sand. This environmentally benign, highly abundant, and low cost SiO₂ source allows for production of nano-silicon at the industry level with excellent electrochemical performance as an ano…
The present work reports on the preparation of Mo 2 C nanoparticles decorated graphitic carbon sheets (Mo 2 C/GCSs) via a biopolymer-derived solid-state reaction between (NH 4 ) 6 Mo 7 O 24 ·4H 2 O and sodium alginate at 900 °C under Ar. As a novel hydrogen evolution reaction electrocatalytst, the Mo 2 C/GCSs hybrids…
ADVERTISEMENT RETURN TO ISSUEPREVReviewNEXTSolution-Phase Synthesis of Titanium Dioxide Nanoparticles and NanocrystalsMatteo Cargnello†, Thomas R. Gordon†, and Christopher B. Murray*†‡View Author Information† ‡ †Department of Chemistry and ‡Department of Materials Science and Engineering, University of Pennsylvania, P…
BACKGROUND: While the use of plastic materials has generated huge societal benefits, the 'plastic age' comes with downsides: One issue of emerging concern is the accumulation of plastics in the aquatic environment. Here, so-called microplastics (MP), fragments smaller than 5 mm, are of special concern because they can…
Abstract Die Vergasungstechnologie stellt einen Schlüsselprozess der chemischen und energetischen Industrie dar. Hier wurde die Einsatzfähigkeit neuer Al2O3‐basierter Feuerfestwerkstoffe unter Vergasungsbedingungen untersucht. Dazu wurden in Abhängigkeit der Sinteratmosphäre die thermo‐mechanischen Eigenschaften, die…
Mimicking the remarkable dynamic and multifunctional utility of biological nanofibers, such as microtubules, is a challenging and technologically attractive objective in synthetic supramolecular chemistry. Understanding the complex molecular interactions that govern the assembly of synthetic materials, such as peptide…
We describe designs for spectrometers employing convex dispersers. The Offner spectrometer was the first such instrument; it has almost exclusively been employed on satellite platforms, and has had little impact on ground-based instruments. We have learned how to fabricate curved Volume Phase Holographic (VPH) grating…
High Resolution Image Download MS PowerPoint Slide This paper studies the chemical attachment of pyridine on two semiconductor surfaces, Si(100) and Ge(100), at low coverages. We use thermodynamic arguments to show that the aromaticity of pyridine is preserved in both cases at low temperatures. At high temperatures, a…
Volume Phase Holographic Gratings (VPHG) can provide an improvement of diffraction efficiency and function- ality in already available astronomical instrumentation. Here, we present the design, manufacturing and testing of two GRISMs mounted on the AFOSC camera (at the 1.8 m Asiago telescope) based on VPHGs. Such diff…
The temperature behavior of electrical conductivity of boron nitride nanotubes (6, 0) in the context of Hubbard model at the paramagnetic sector. The effect of electronic correlation on the energy gap of boron nitride nanotube (BNNT) is investigated. Interacting electronic Green's function matrix has been found within…
ABSTRACT The effects of variation in average nanofibers diameter and surface density of nanofibers web on thermal conductivity of poly(methyl methacrylate) (PMMA) nanofibers web are investigated in this paper. With an increase in the concentration of PMMA in the solution from 18 to 26 w/v%, the mean diameter of nanofi…
Abstract Wir berichten über die Synthese, die Komplexierung und das Schalten in verschiedenen Umgebungen neuer difunktionaler Azobenzol‐Oligoglycerin‐Konjugate. Zunächst wurden die Schalter durch Wirt‐Gast‐Chemie an Goldoberflächen gekuppelt, und zwar über β‐Cyclodextrin‐Rezeptoren, die zuvor auf den entsprechenden Ob…
Summary In this research, the suitability of almond shell and coconut fiber as a renewable agricultural residue for manufacturing of biocomposite to be used as a replacement of wood was investigated. The use of agriculture waste as a reinforcement in composite may result in several environmental and socioeconomic bene…
Although there are many reports demonstrating that thiobacillus denitrificans (TDN) may inhibit corrosion caused by sulfate-reducing bacteria (SRB), very little is known for the inhibition effect in crude petroleum. In this work, the inhibition effect of TDN on the corrosion of X70 pipeline steel caused by SRB in crud…