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。
The calcium carbonate crystallization from aqueous solutions in the presence of alkali additives such as sodium hydroxide and ammonium hydroxide has been researched. It is found CaCO3 crystallizes predominantly in the modification of aragonite in the presence of ammonium hydroxide. The calcium carbonate formation rate…
A novel red emitting phosphor of Eu 3+ doped SrGeO 3 was prepared through the solid state reaction. XRD, PL and CL were utilized to characterize the samples. Under the excitation of ultraviolet light and low voltage electron beams, SrGeO 3 : Eu 3+ phosphor shows the characteristic 5 D 0 - 7 F 2 transition of Eu 3+ at…
Transitional metal oxides hold great potential for high capacity anodes. However, the low electron conductivity of such materials leads to poor cycling stability and inferior rate capability. We reported herein the use of a novel hydrogen plasma technology to improve the conductance of metal oxides, which leads great…
In the present study, reverse nonequilibrium molecular dynamics is employed to study thermal resistance across interfaces comprising dimensionally mismatched junctions of single layer graphene floors with (6,6) single‐walled carbon nanotube (SWCNT) pillars in 3D carbon nanomaterials. Results obtained from unit cell an…
A helix with the ternary components of TPPS4, Zn(NO3)2 and C14DMAO is easily obtained in aqueous solution. It retains the characteristic fluorescence of the porphyrin and can be conductive when it bridges on a gold electrode, which provides potential applications in photochemistry and electrical devices.
The role of thiophene bridges in determining the photophysical properties of bridged core-modified hexaphyrins is investigated. Depending on the substituted chalcogen atoms and conjugational perturbation across the thiophene bridges, the bridged core-modified hexaphyrins reveal unique photophysical properties.
Dehydration–induced structural change in ikaite, CaCO3·6H2O, is investigated using a low–temperature single–crystal X–ray diffraction study. At −50 °C, the crystal structure of ikaite is monoclinic, of space group C2/c with the unit cell parameters a = 8.8134 (1), b = 8.3108 (1), c = 11.0183 (1) Å, and β = 110.418 (1)…
In this study, ZnO films were prepared on p-Si substrates using the pulsed filtered cathodic vacuum arc deposition (PFCVAD) method. We report the effect of annealing temperature on structural and optical properties. The crystallographic structure and the size of the crystallites in the films were studied by means of X…
First-principles calculations were performed to study the hydrogen bond in the camphorsulfonic (CSA) acid-doped polyaniline system. The density functional theory (DFT) method was used to calculate the ground-state geometric structure optimization. Meanwhile, the electronic excitation energies and corresponding oscilla…
Recent studies have shown interest in flame retardants containing phosphorus, nitrogen and sulfur a combination small molecule with a promising new approach in preparing an important class of flame retardant materials. Tetraethyl piperazine-1,4-diyldiphosphonate (TEPP) and O,O,O’,O’- tetramethyl piperazine-1,4-diyldip…
The siloxane bonds of oligomer <bold>1</bold> were not cleaved by hydrolysis, indicating the suitability of <bold>1</bold> for controlled hybrid preparation.
A dynamic anti-aggregation sensing method using unmodified gold nanoparticles(AuNPs) for rapid detection of Hg <sup>2+</sup> .
Free standing silicene nanosheets remain elusive presumably due to the instability associated with sp(2) hybridized silicon atoms. Here we show that silicon prefers nanosheets based on the non-classical Si5 unit with a [1.1.1]-propellane motif that has two inverted tetrahedral atoms bridged by three tetrahedral atoms.…
Naproxen (NAP)/cellulose acetate hybrid nanofibers were prepared by positive and reversed emitting electrodes electrospinning setups. The morphology and structure of the resultant nanofibers were characterized, and the NAP release behaviors were investigated. It was found that NAP dispersed in the CA matrix in molecul…
The degree of crosslinking of ethylene vinyl acetate (EVA) is a decisive factor for the photovoltaic (PV) modules reliability. Numerous chemical or physical methods may be applied to determine the extent of crosslinking reaction in the EVA material. The usual and most accurate ones are destructive as they require a sa…
A novel terphenyl diamine monomer, 4-[3,5-Bis(3-aminophenyl)benzophenone] phenyl 3,4,5-tris(decyloxy)benzoate (TerKetone) having three long-chain alkyl groups connected by phenylester and benzophenone linkages was synthesized via several step reactions from Gallic acid methyl ester. The novel polyimides and copolyimid…
The current microscopic picture of plasticity in amorphous materials assumes local failure events to produce displacement fields complying with linear elasticity. Indeed, the flow properties of nonaffine systems, such as foams, emulsions and granular materials close to jamming, that produce a fluctuating displacement…
Three-dimensional block copolymer structures with long-range order and mixed symmetries.
Monodisperse Fe 3 O 4 @PANI(Polyaniline) nanocomposites were successfully synthesized at ambient temperature via reverse microemulsion technique with the objective to gain control over the size and morphology of these nanocomposites. The present synthetic approach uses inexpansive FeCl 3 as a single iron source to pre…
An organic azine derivative of CN <sub>4</sub> OH, containing both <italic>para</italic> - and <italic>ortho</italic> -hydroxyl ( <italic>o</italic> - and <italic>p</italic> -OH) groups, is a fluorescent material with an emission efficiency dependent on the degree of crystallinity.