Materials Literature
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Hybrid materials in which reduced graphene oxide (rGO) is decorated with Au nanoparticles (rGO-Au NPs) were obtained by the in situ reduction of GO and AuCl4(-)(aq) by ascorbic acid. On laser excitation, rGO could be oxidized as a result of the surface plasmon resonance (SPR) excitation in the Au NPs, which generates…
This article presents the use of quadratic general rotary unitized design method in optimization of spinning parameters of T-400/cotton core spun yarn on a ring frame. T-400 is a bicomponent filament based on sorona 3GT polymer form DuPont. An experimental design was generated using MINITAB© 15 which included three fa…
Poly(N,N-dimethylacrylamide) (PDMA) brushes with different grafting density and chain length were grown from an ester group-containing initiator using surface-initiated polymerization. Hydrolysis of the PDMA chains from the surface was monitored by measuring thickness of the polymer layer by ellipsometry and extension…
We use density functional plus $U$ methods to study the effects of a tensile or compressive substrate strain on the charge-ordered insulating phase of ${\mathrm{LuNiO}}_{3}$. The numerical results are analyzed in terms of a Landau energy function, with octahedral rotational distortions of the perovskite structure incl…
We extracted collagen from moon jellyfish under neutral pH conditions and analyzed its amino acid composition, secondary structure, and thermal stability. The content of hydroxyproline was 4.3%, which is lower than that of other collagens. Secondary structure analysis using circular dichroism (CD) showed a typical col…
BaBi 0.05 Co 0.8 Nb 0.15 O 3−δ (BBCN) ceramic hollow fiber membranes have been fabricated via a phase conversion and sintering technology. An oxygen permeation test was operated under steam as sweep gas, and the highest oxygen permeation flux is 11.07 mL cm –2 min –1 with a purity of around 99.8% at 950 °C. The stabil…
A general quantitative model of capillary flow in homogeneous porous media with varying cross-sectional sizes is presented. We optimize the porous structure for the minimization of the penetration time under global constraints. Programmable capillary flows with constant volumetric flow rate and linear evolution of flo…
A vapor–liquid–solid method for the growth of single-crystalline (Bi1−xSbx)2Te3 nanowires with adjustable Bi–Sb mixing ratios is presented. Thermoelectric measurements on individual nanowires indicate a significant contribution from topological surface states to the total transport over the entire chemical composition…
Abstract Metallic nanocrystals (NCs) with well‐defined sizes and shapes represent a new family of model systems for establishing structure–function relationships in heterogeneous catalysis. Here in this study, we show that catalyst poisoning can be utilized as an efficient strategy for nanocrystals shape and compositi…
Abstract Hier wird die Synthese eines Hexa‐ peri ‐hexabenzocoronens (HBC) mit innerem Borazinkern beschrieben. Die Festkörperstruktur dieses Bor‐Stickstoff‐dotierten HBC (BN‐HBC) ist isotyp mit derjenigen des ursprünglichen HBC. Aufnahmen mit dem Rastertunnelmikroskop zeigen, dass BN‐HBC flach in zweidimensionalen Mus…
We have recently investigated the phase behavior of model colloidal dumbbells constituted by two identical tangent hard spheres, with the first being surrounded by an attractive square-well interaction (Janus dumbbells, Munaó et al 2014 Soft Matter 10 5269). Here we extend our previous analysis by introducing in the m…
The oxidative desulphurization (ODS) of gasoline and model compounds that exist in gasoline with hydrogen peroxide using (N(But)4)5H4PV6Mo6O40 as a scavenger has been studied. This keggin-type polyoxometalate was shown to be able to scavenge hydrogen sulphide and mercaptans in high yields. This system provides an effi…
The atomic configuration of graphene edges significantly influences the various properties of graphene nanostructures, and realistic device fabrication requires precise engineering of graphene edges. However, the imaging and analysis of the intrinsic nature of graphene edges can be illusive due to contamination proble…
Abstract Rare‐earth metals are critical components of electronic materials and permanent magnets. Recycling of consumer materials is a promising new source of rare earths. To incentivize recycling there is a clear need for simple methods for targeted separations of mixtures of rare‐earth metal salts. Metal complexes o…
In a recent paper [A. J. Window et al., Phys. Rev. Lett. 107, 016105 (2011)], it was proposed that V_{2}O_{3}(0001) is terminated by the so-called O_{3} termination, a reconstruction with a terminating distorted hexagonal oxygen layer. We show that the surface is terminated by vanadyl (V═O) groups instead. This conclu…
Abstract The unsupported Cu and Ag catalysts with different oxidation states were prepared, and their catalytic performances for propylene epoxidation were investigated. The metallic Cu catalyst exhibits much higher catalytic activity and propylene oxide (PO) selectivity than Cu 2 O and CuO catalysts. The Cu 0 species…
The mechanism underlying the deactivation of a commercial V 2 O 5 –WO 3 /TiO 2 catalyst for NH 3 selective catalytic reduction (SCR) of NO x through exposure to the flue gas of a coal-fired power plant was investigated by a transient kinetic analysis that focused on the distinction between the deactivation behaviors o…
The incorporation of paramagnetic ligands within rare-earth ion clusters exhibiting large magnetic anisotropy has provided significant advancement in the design of single-molecule magnets (SMMs) with large blocking temperatures. However, the exchange interaction in such systems is complex and difficult to probe by con…
Nanotechnology can contribute to the development of innovative applications in the agriculture, food and feed sector by e.g. enabling improved delivery of nutrients or increased efficacy of agrichemicals. It is expected that applications will increase in the near future and may therefore become a relevant source of hu…
A systematic method to control the porosity of silicon nanowires is presented. This method is based on metal-assisted chemical etching (MACE) and takes advantage of an HF/H2O2 etching solution and a silver catalyst in the form of a thin patterned film deposited on a doped silicon wafer. It is found that the porosity o…