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。
Spectroscopically resolved emission from single nanocrystals at cryogenic temperatures provides unique insight into physical processes that occur within these materials. At low temperatures, the emission spectra collapse to narrow lines, revealing a rich spectroscopic landscape and unexpected properties, completely hi…
The effect of sonication temperature on the debundling of carbon nanotube (CNT) macro-bundles is reported and demonstrated by analysis with different particle sizing methods. The change of bundle size over time and after several comparatively gentle sonication cycles of suspensions at various temperatures is reported.…
Abstract Dimeric methylzinc ketoiminate complexes bis{4‐[(2,6‐diisopropylphenyl)imido]pentan‐1‐one}methylzinc, [{L 1 }ZnMe] 2 , and bis{1‐phenyl‐3[(2,6‐diisopropylphenyl)imido]butan‐1‐one}methylzinc, [{L 2 }ZnMe] 2 have been synthesized and completely characterized along with the homoleptic zinc complex bis{1‐phenyl‐3…
In semiconductor photovoltaics, photoconversion efficiency is governed by a simple competition: the incident photon energy is either transferred to the crystal lattice (heat) or transferred to electrons. In conventional materials, energy loss to the lattice is more efficient than energy transferred to electrons, thus…
It is a great challenge to directly assemble two-dimensional (2D) graphene oxide (GO) sheets into 1D fibers without any polymer or surfactant for their promising multifunctional applications. Herein, a facile self-assembly strategy is proposed to fabricate neat GO fibers from cost-efficient, aqueous GO suspension at a…
Polypyrrole (PPy)/poly(pyrrole-co-acrylamide) (Poly(Py-co-AAm)/nanocomposite was prepared by a simple and inexpensive in-situ co-polymerization of pyrrole and acrylamide in the presence of Fe3O4 nanoparticles. The nanocomposites were characterized by FTIR, SEM, XRD, TGA, and conductivity measurements. The FTIR spectra…
A new class of polyphospholes bearing alkanesulfonylimino moieties on the phosphorus(V) centers was prepared by the Pd-CuI-promoted Stille coupling reaction to investigate the charge-carrier transport properties of the π-networks of polyphospholes. Time-of-flight measurements have revealed that the poly(phosphole P-im…
Maleated cyclodexdrin (MC) and its metal salts (Metal MC) were synthesized and added into poly(vinyl alcohol)–intumescent flame retardant (PVA–IFR) composites as synergists. Results of thermogravimetric analysis (TGA) and differential thermal analysis (DTG) showed that the thermal stability of the composites was great…
The usual classical behavior of $S=3/2$, $B$-site ordered double perovskites generally results in simple, commensurate magnetic ground states. In contrast, combined magnetic susceptibility, heat capacity, and neutron powder diffraction measurements for the $S=3/2$ systems La${}_{2}$Na${B}^{\ensuremath{'}}$O${}_{6}$ ($…
The small-sized and well-dispersed Ru nanocatalysts supported on halloysite nanotubes (HNTs) were synthesized by the inclusion of preformed Ru nanoparticles onto HNTs (Ru NPs/HNTs) and employed for the preferential oxidation of CO in H 2 -rich atmosphere (PROX). Polyol reduction was adopted to prepare Ru nanoparticles…
The nitrides Ca 2 Si 5 N 8 :0.5% Eu 2+ , x % Tm 3+ ( x = 0, 0.5, 1, 2, 4) ( CSN :0.5E, x T) phosphors were prepared via the high temperature solid‐sintering method using CaH 2 as calcium source. These phosphors exhibited strong orange long‐lasting phosphorescence ( LLP ) after turning off the activating light. Besides…
The methods for isolation and identification of nanoparticles and for quantitative determination of nanoparticles in complex multicomponent mixed-phase systems are considered. These systems include most environmental objects, in particular, animal and plant organisms, agricultural raw materials, foodstuffs and various…
In order to study the similarities and differences of physical-chemical properties of collagens from different parts of the fish body, acid-soluble collagens and pepsin-soluble collagens were isolated from skin, scale, and bone of grass carp (Ctenopharyngodon idellus), with yields ranging from 0.7 to 25.5% on the basi…
Studies of materials consisting of carbon nanotubes or containing them have been analyzed and generalized. Classification of these materials is proposed, their general features and main types are considered, and individual examples are presented. The bibliography includes 372 references.
We studied how the period length and the mass ratio affect the thermal conductivity of isotopic nanoscale three-dimensional (3D) phononic crystal of Si. Simulation results by equilibrium molecular dynamics show isotopic nanoscale 3D phononic crystals can significantly reduce the thermal conductivity of bulk Si at high…
We formulate a model for magnetic and superconducting ordering in one-dimensional nanostructures at LaAlO${}_{3}$/SrTiO${}_{3}$ interfaces containing both localized magnetic moments and itinerant electrons. Although these both originate in Ti $3d$ orbitals, the former may be due to electrons more tightly bound to the…
Silk-elastinlike protein polymers (SELPs) are recombinant polymers consisting of tandem repeats of silk (GAGAGS) and elastin (GVGVP) units. By modification of the length and composition of these repeats, the properties of SELP hydrogels can be controlled for specific applications including nucleic acid and virus deliv…
Zeolites have been shown to be useful catalysts in a large variety of reactions, from acid to base and redox catalysis. The particular properties of these materials (high surface area, uniform porosity, interconnected pore/channel system, accessible pore volume, high adsorption capacity, ion-exchange ability, and shap…
Here, we report a substrate-induced intercalation phenomenon of an organic solvent at the interface between monolayer graphene and a target substrate. A simple dipping of the transferred chemical vapor deposition (CVD)-grown graphene on the SiO₂ substrate into chloroform (CHCl₃, CF), a common organic solvent, induces…
Carbon nanotubes (CNTs) are increasingly attracting scientific and industrial interest because of their outstanding characteristics, such as a high Young's modulus and tensile strength, low density, and excellent electrical and thermal properties. The incorporation of CNTs into polymer matrices greatly improves the el…