Materials Literature
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Electrostrictive and photoinduced charge accumulation in the nanoscale interfaces of air and copper-doped (K0.5Na0.5)0.2(Sr0.75Ba0.25)0.9Nb2O6 crystals and electrostatic modification to the nanolayer interfaces were studied with conventional two beam coupling. This interface modification was confirmed by (1) emerging…
A ZnO nanoparticle/metal–organic framework-5 (MOF-5) hybrid material was successfully synthesized via a two-step solvothermal method. The ZnO/MOF-5 composite exhibited better hydrostability than MOF-5. Besides, the photoluminescence spectra of this hybrid material show two emission peaks located at 460 and 550 nm.
When an accident occurs, operators in nuclear power plants (NPPs) must follow emergency operating procedures (EOPs) or severe accident management guidelines (SAMGs). However, EOPs and SAMGs are symptom-based procedures and guidelines to cope with severe transients and accidents. Operators depend on real-time operating…
In this paper, the distribution of contact stresses along the die-workpiece interface as well as elastic deformation behavior of the die in the cold backward extrusion of steel billets have been investigated both experimentally and numerically. For the experiments, a special tooling set including a pin load cell measu…
Non-equilibrium molecular dynamics (MD) simulations were performed to investigate the capillary evaporation of water confined in hydrophilic mesopores. The electrostatics-based (ELBA) coarse-grained water model was employed to calculate the duration of the time-consuming capillary evaporation process. To evaluate the…
Fine questions our interpretation of unidirectional stripes over a bidirectional checkerboard and illustrates his criticism by simulating a momentum space structure consistent with our data and corresponding to a checkerboard-looking real space density. Here, we use a local rotational-symmetry analysis to demonstrate…
Analyses of the one-dimensional 11 B NMR spectra from static and MAS experiments of a polycrystalline ReB 2 sample have extracted parameters characterizing both the electric field gradient and the shielding at the boron site. In contrast to that previously assumed for AlB 2, the principal axis systems for these two in…
The development of an efficient method for manipulating phase and surface transformations would facilitate the improvement of catalytic materials for use in a diverse range of applications. Herein, we present the first instance of a submicrosecond time frame direct phase and surface transformation of Bi(NO3)3 rods to…
In this experiment for an introductory undergraduate organic chemistry lab, students tetraalkylate tert -butylcalix[4]arene, a bowl-shaped macrocyclic oligophenol, and examine the supramolecular chemistry of the tetraether product by proton nuclear magnetic resonance (NMR) spectroscopy. Complexation with a sodium ion…
New gallium(III) and iron(III) endohedral complexes were obtained from a hemicryptophane ligand bearing suitable binding sites for octahedral metal coordination. The solid-state structures of the free host and of the complexes were determined by single-crystal X-ray diffraction analysis. The metal ion is linked to the…
Conductors in pulsed magnets in the U.S. National High Magnetic Field Laboratory (MagLab) are rectangular cross section wires of relatively large thickness. During the manufacture of the magnets, some of these conductors are wound to small-diameter coils (less than 15 mm). Because of the large thickness and the small…
We reported a facile two-step method for preparing a polymer-based CH3NH3PbI3 perovskite composite nanofiber film. The diameter of the PAN/CH3NH3PbI3 nanofibers was in the 500 nm range. The UV–vis absorption spectrum of the film demonstrated good light-harvesting capabilities over the visible to near-IR range. The max…
The desorption performances of naphthalene and pyrene on mesoporous MCM-41, SBA-15, and CMK-3 sorbents are studied on the basis of temperature-programmed desorption experiments over the temperature range of 350–800 K at different heating rates. The kinetic parameters for each sorbate–sorbent pair are determined with c…
Acetylene (C2H2) is an important fuel for fuel cells, welding, and metal cutting. In this paper, a defected MIL-53 is reported for C2H2 storage. The defects were simply generated by ball milling MIL-53. Furthermore, it was found that the adsorption of C2H2 on the defected MIL-53 is stronger than that on MIL-53 without…
To improve the spatial distribution of nanoparticles in a polymeric host and to enhance the interfacial interaction with the host, the use of chain-end grafted nanoparticle has gained popularity in the field of polymeric nanocomposites. Besides changing the material properties of the host, these grafted nanoparticles…
Abstract The long-pulse high-confinement (H-mode) plasma regime is considered to be a preferable scenario in future fusion devices, and in the period of normal operation during H-mode, edge-localised modes (ELMs) are one of the most serious threats to the performance and capability of divertor targets. The EAST recent…
Abstract Nickel benzoate trihydrate (1) has been prepared in single‐crystalline form by the reaction of nickel carbonate with benzoic acid in boiling aqueous solution. Its crystal structure comprises positively charged [Ni(Bz)(H2O)2]nn+ chains, benzoate anions, and one independent water molecule of solvation. The hexa…
The solubility data for sodium halides (NaF, NaCl, NaBr, and NaI) have been determined at 298.15 K in the ε-increasing mixtures of water–formamide, water– N -methylformamide, and water– N -methylacetamide. In all cases, the solubility of the electrolytes was decreased significantly in the presence of a cosolvent. The…
An organic field-effect transistor (OFET) toward phosphate sensing has been successfully developed. The fabricated OFET possessing an extended-gate functionalized with zinc(II)–dipicolylamine (ZnII–DPA) exhibited an electrical and cross-reactive response to phosphate anions such as nucleotides and inorganic phosphates…
Spontaneous resolutions from an in situ reaction especially for a Sharpless reaction are really rare. Here we display a new pair of enantiomeric compounds Δ - and Λ - [Mn(4-tzba)(bpy) 2 ·H 2 O](bpy)·3H 2 O (labeled as Δ -1 and Λ -1 respectively) (4-tzba = 4-tetrazolbenzoic acid; bpy = 2,2′-bipyridine) from a Sharpless…