Materials Literature
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We report the synthesis, structure and magnetic properties of the first 4d-4f single-molecule magnet. The complex [Ru(III)2Dy(III)2(OMe)2(O2CPh)4(mdea)2(NO3)2] displays a butterfly type core, with an anisotropy barrier of 10.7 cm(-1). Ab initio and DFT calculations provide insight into the observed magnetic behaviour.
Gold nanoshells, with a silica core and different core and shell dimensions, have been extensively investigated. Optical far-field properties, namely extinction and absorption, have been separately determined by means of spectrophotometry and photoacoustic spectroscopy, respectively, in the 440-900 nm range. The enhan…
Superior catalytic effects of multi-walled carbon nanotube supported titania synthesized by the sol-gel method on hydrogen storage of a Mg-Ni alloy were investigated. The excellent hydrogen storage properties were obtained: absorbed 5.60 wt% H2 within 60 s at 373 K and released 6.08 wt% H2 within 600 s at 553 K.
In this paper, the bi-axial stretching effects on the electrical conductivity of carbon nanotube (CNT)-polymer composites are studied by a mixed micromechanics model with the consideration of the electrical conductive mechanisms. The bi-axial stretching effects are characterized by volume expansion of composite, re-or…
OBJECTIVES: The aim of this study was to design and evaluate a chitosan-based film that has properties required for successful wound dressing, and can control drug penetration and maintenance time in the location. METHODS: Several formulations of a film containing chitosan (3%) and different concentrations of Eudragit…
High-surface-area Ni/α-Al 2 O 3 catalysts exhibit good activity, stability and coking-resistance because the high-surface-area support is favorable to the dispersion of Ni.
Periodic mesoporous aluminum phosphonates exhibit high uptake capability for Co 2+ and thus oxidizing ability in organic contaminant decomposition.
Accurate knowledge of the electrical characteristics of an energy storage device is of high importance when utilized in any power system to achieve proper charging and discharging modes without inflicting any damage to its structure. In this paper, a Li-ion ultracapacitor, a hybrid type of energy storage, is thoroughl…
In situ thermal-oxidative ageing tests by electron spin resonance (ESR) evidence that polydopamine (PDA) deposited onto clay can act as excellent radical-scavenger and thus significantly diminish the thermolysis of styrene butadiene rubber (SBR).
A series of double molybdate scheelite-type phosphors LixAg1-xYb0.99(MoO4)2:0.01Er(3+) (x = 0, 0.1, 0.3, 0.5, 0.7, 0.9, 1.0) were synthesized by the solid state reaction method, and their crystal structures and upconversion (UC) luminescence properties were investigated in detail. The phase structure evolution of this…
Localization of inorganic nanoparticles (NPs) into polymer matrix plays a crucial role in determining the performance of the hybrid materials. Herein, we employed a simple, yet versatile hydrogen bonding directed supramolecular assembly (HBSA) strategy to control the localization of Au NPs from the center to the inter…
Recently, organic ligands have been shown to play a significant role in optical and electronic properties of CdSe quantum dots and also in solar cell applications.
Here we report for the first time on a complete simulation assisted "material to module" development of a high performance thermoelectric generator (TEG) based on the combination of a phase change material and established thermoelectrics yielding the compositions (1 - x)(GeTe) x(Bi(2)Se(0.2)Te(2.8)). For the generator…
A-C:H films with low friction and good wear resistance have long been regarded as a potential space lubricating film.
Nickel supported on Al 2 O 3 –CeO 2 –La 2 O 3 provided excellent catalytic features and high coking resistance in oxidative steam reforming of methane.
This work provided a method that can recycle the spent montmorillonite and synthesize heteroatom-doped graphene-like materials.
The narrow, near infrared (NIR) emission from lanthanide ions has attracted great interest, particularly with regard to developing tools for bioimaging, where the long lifetimes of lanthanide excited states can be exploited to address problems arising from autofluorescence and sample transparency. Despite the promise…
A systematic investigation has been performed on the hydrogen sorption properties of the Mg–X (X = Fe, Co, V) nano-composites co-precipitated from solution through an adapted Rieke method.
The comet assay is widely used to test the genotoxicity of engineered nanomaterials (ENMs) but outcomes may vary when results from different laboratories, or even within one laboratory, are compared. We address some basic methodological considerations, such as the importance of carrying out physico-chemical characteri…
The results of the first chemical analysis of the adhesive of Lepas anatifera, a stalked barnacle, are presented. A variety of elements were identified in scanning electron microscopy with energy dispersive spectrometry (SEM-EDS) of the adhesive, including Na, Mg, Ca, Cl, S, Al, Si, K and Fe; however, protein-metal in…