Materials Literature
按标题、摘要、年份、主题和来源检索公开元数据。结果保留作者、摘要、分类与原始来源链接。
Abstract Conductive network formation and its dynamic process for multiwalled carbon nanotubes (MWNTs) and carboxyl‐tethered MWNT (MWNT‐COOH) filled poly(vinylidene fluoride)(PVDF) systems were investigated. Based on real‐time tracing the variation of electrical resistivity of systems with isothermal treatment time, t…
A theoretical study of molybdenum and caesium solution in uranium dioxide is carried out. Calculations are performed using the density functional theory with the projector-augmented-wave method as implemented in the Vienna ab initio simulation package (VASP). Correlation effects are taken into account within the DFT+U…
We present a process for synthesizing ionically self-assembled polyelectrolyte-complex-based carbon nanotube fibers using a simple noncovalent stabilization of carbon nanotube aqueous dispersions where no surface functionalizations of the nanotubes were necessary. The polyelectrolyte-carbon nanotube composite fibers h…
Abstract Full as well as half generations of dendritic poly(amido amine)s (PAMAMs) were introduced onto urea‐formaldehyde (UF) wood adhesive system as modifiers to increase its stability and enhance the performance of the bonded wood joints with it. The effect of the modifiers on the physical properties and mechanical…
Density functional theory (DFT) and time-dependent DFT calculations have been performed to investigate the Raman scattering spectra of metal-molecule complex and metal-molecule-metal junction architectures interconnected with 4-aminothiophenol (PATP) molecule. The simulated profiles of normal Raman scattering (NRS) sp…
Abstract Rectorite (REC), one kind of layered silicates, has been applied to polymers to improve their properties. The sodium alginate (SA) layered silicate is a new option to modify the properties of polysaccharides. In this article, SA was modified by Na + ‐rectorite (Na + REC). The chemical structures and microstru…
Reactivity of TiO 2 compounds is investigated vs nanosize using atomic hydrogen adsorption as a probe. Small clusters with (TiO 2 ) n stoichiometry ( n = 1−24) of lowest energy are compared with infinite systems like polymers and surfaces. The binding energy for the most reactive clusters reaches ∼3.5 eV while it is 2…
A simple change of counteranions in catalytic templates for biomimetic silicification on surfaces dictates the size of silica nanostructures formed. It is found that the charge density of the counteranions plays an important role in controlling the structures of both templates and silica in the biomimetic silicificati…
Graphene attached on a sapphire surface with regularly ordered step-terrace structure was observed using atomic force microscopy (AFM). We found that graphene tightly adheres to a sapphire surface and the buried step structure on the sapphire surface was clearly observed on the graphene surface. Height of a single-lay…
The topography and surface composition of thin films (ca. 100 nm) of a polystyrene- b -poly(ethylene oxide) (PS-PEO) block copolymer are investigated using a suite of complementary techniques, namely tapping mode atomic force microscopy (AFM), optical microscopy, X-ray photoelectron spectroscopy (XPS), neutron reflect…
Abstract The kinetics of crystallization induced by orotic acid (OA) and boron nitride (BN) as nucleating agents were investigated for bacterial poly(3‐hydroxybutyrate‐ co ‐3‐hydroxyhexanoate)s (P(HB‐ co ‐HH)s) containing from 0 to 18% HH monomer units. The nucleation efficiency of these two chemicals was investigated…
Chiral Swiss rolls, consisting of a metal/dielectric laminate tape helically wound on an insulating mandrel, have been developed to form the basis of a highly chiral metamaterial. We have fabricated these elements using a custom-built machine, and have characterized them. We find that the permeability, permittivity, a…
In this paper, for the first time, the influence of internal moving fluid and compressive axial load on the nonlinear vibration and stability of embedded carbon nanotubes is investigated. The Euler–Bernoulli beam theory is employed to model the vibrational behaviour of an embedded carbon nanotube. The relationship of…
Surface enhanced Raman scattering (SERS) of pyridine adsorbed on Au@Pd core/shell nanoparticles has been investigated theoretically with quantum chemical method, generalized Mie theory and three-dimensional finite-difference time domain (3D-FDTD) method. We first studied the influence of the coated Pd on the electroni…
The LCAO-Xα method is extended to include spin-polarization and thus be applicable to complexes containing transition metals. In studies on the nickel atom and on nickel hydride the method is shown to be reliable and computationally efficient. These results are compared with similar Multiple Scattering Xα, Unrestricte…
Density-functional calculations have been performed on ${\text{BaTiO}}_{3}(001)$ bare, with adsorbed molecular water and hydroxylated surfaces in the case of surfaces having in-plane polarization. We show that in-plane-polarized ${\text{BaTiO}}_{3}(001)$ flat surfaces have very strong interaction energies with water a…
We report upper critical-field measurements in the metal-free-all-organic superconductor ${\ensuremath{\beta}}^{\ensuremath{''}}\text{\ensuremath{-}}{(\text{ET})}_{2}{\text{SF}}_{5}{\text{CH}}_{2}{\text{CF}}_{2}{\text{SO}}_{3}$ obtained from measuring the in-plane penetration depth using the tunnel diode oscillator te…
Abstract Here, a pyrolytically controlled antioxidizing photosynthesis coenzyme, β ‐Nicotinamide adenine dinucleotide, reduced dipotassium salt (NADH) for a stable n‐type dopant for carbon nanotube (CNT) transistors is proposed. A strong electron transfer from NADH, mainly nicotinamide, to CNTs takes place during pyro…
High-molecular-weight PTeMC and PHMC were prepared by the lipase-catalyzed polymerization of butane-1,4-diol or hexane-1,6-diol and diphenyl carbonate via the formation of a cyclic dimer by a green process. Cyclic carbonate dimers were prepared by the lipase-catalyzed condensation of diphenyl carbonate with butane-1,4…
Moisture management can be defined as the controlled movement of water vapor and liquid water (perspiration) from the surface of the skin to the atmosphere through the fabric. Wetting, wicking, and moisture vapor transmission (MVT) properties are the critical aspects for evaluating the comfort performance of textiles.…