Materials Literature
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NiMgAl mixed oxide catalyzes nitro-aldol condensation reaction at room temperature under solvent free conditions exhibiting 99% conversion.
Self-assembly is the basic feature of supramolecular chemistry, which permits to integrate and enhance the functionalities of nano-objects. However, the conversion of self-assembled structures to practical materials is still laborious. In this work, on the basis of studying one-pot synthesis, spontaneous assembly, and…
In situ electrochemical scanning tunneling microscopy (ECSTM) was applied to analyze the local susceptibility to corrosion at different grains of cryogenically rolled microcrystalline copper in a HCl solution, and combined with electron backscatter diffraction (EBSD) and field emission scanning electron miscroscopy (F…
Optimization analysis of thermoelectric generators operation is of importance both for practical applications and theoretical considerations. Depending on the desired goal, two different strategies are possible to achieve high performance: through optimization one may seek either power output maximization or conversio…
Electrically conducting polymers (CPs) have been recognized as novel biomaterials that can electrically communicate with biological systems. For their tissue engineering applications, CPs have been modified to promote cell adhesion for improved interactions between biomaterials and cells/tissues. Conventional approach…
A new and efficient method for diazenylation reactions was developed with a Sc(OTf)3-catalyzed nitrogen-nitrogen bond cleavage process with triazenes. The transfer diazenylation reactions accommodate a diverse range of active methylene substrates including simple ketones to give aliphatic azo compounds that are of sig…
The pathways toward linearly polarized light (LPL)-induced alignment switching in a diblock copolymer film composed of liquid crystalline (LC) azobenzene (Az) and amorphous poly(butyl methacrylate) (PBMA) blocks were studied in detail using polarized UV–vis absorption spectroscopy, grazing incidence small-angle X-ray…
Nano-scale Y2Ti2O7 and Y2TiO5 oxides are the major features that provide high strength and irradiation tolerance in nano-structured ferritic alloys. Here, we employ density functional theory to study helium trapping in Y2TiO5. The results suggest that helium is more deeply trapped in Y2TiO5 compared to Y2Ti2O7. Helium…
Abstract Molybdenum oxide (MoO 3 ) mixed tungsten oxide (WO 3 ) thin films have been prepared by hybrid physico‐chemical synthesis involving microwave assisted sol‐gel synthesis (MW‐SGS) of WO 3 followed by vacuum evaporation of MoO 3 on fluorine doped tin oxide (FTO) coated glass substrates. The optostructural and mo…
Abstract Nitrogen‐rich quantum dots (N‐dots) were serendipitously synthesized in methanol or aqueous solution at a reaction temperature as low as 50 °C. These N‐dots have a small size (less than 10 nm) and contain a high percentage of the element nitrogen, and are thus a new member of quantum‐dot family. These N‐dots…
Organic luminophores are widely used in various optoelectronic devices, which serve for photonics, nuclear and particle physics, quantum electronics, medical diagnostics and many other fields of science and technology. Improving their spectral-luminescent characteristics for particular technical requirements of the de…
The purpose of this study was to determine the feasibility of an artificial esophagus using a three-layered poly(ε-caprolactone) (PCL)-silk fibroin (SF) scaffold in a rat model. The artificial esophagus was a three-layered, hybrid-type prosthesis composed of an outer and inner layer of PCL with a middle layer of SF. A…
The concern regarding the ecotoxicological effects of nanomaterials in the terrestrial environment is increasing. Against this background, several studies have investigated the effects of different nanomaterials on various earthworm species. Since the earthworm is a representative invertebrate present in soil and occu…
Novel photo and thermal dual-responsive inverse opal films were fabricated based on a crosslinked liquid crystal polymer (CLCP) containing azobenzene. Accompanying the deformation of the CLCP, switchable behavior on the reflection spectra of the inverse opal film was induced by light or temperature. We found that the…
ABSTRACT The most promising representative of biodegradable plastics in packaging applications is polylactide (PLA). Despite this, there is only a small market of PLA in Europe. Reasons for that are the high price of PLA raw material and the lack of knowledge of the behavior in packaging applications. It has a number…
Fascinating pictures that can be interpreted as showing molecular orbitals have been obtained with various imaging techniques. Among these, angle resolved photoemission spectroscopy (ARPES) has emerged as a particularly powerful method. Orbital images have been used to underline the physical credibility of the molecul…
In a recent paper, Xie et al. [Phys. Rev. B 88, 235128 (2013)], report that the density-functional theory (DFT) with the so-called DFT plus Hubbard $U$ $(\mathrm{DFT}\phantom{\rule{0.16em}{0ex}}+\phantom{\rule{0.16em}{0ex}}U)$ modification improves energetics, volumes, and formation enthalpies over the standard form o…
ABSTRACT Effect of various efficient vulcanization (EV) sulfur cure systems on the compression set of a nitrile rubber filled with carbon black and silica/silane fillers was examined. The cure systems had different amounts of thiuram and sulfenamide accelerators and elemental sulfur, whilst the loading of zinc oxide a…
An optoelectronic sensor for real-time leakage current monitoring on high-voltage (500 kV) and medium-voltage (13.8 kV) power line insulators was developed. The leakage current drives an ultrabright light-emitting diode producing an amplitude modulated light signal. The optically intensity-encoded signal is coupled to…
The contact between Ni(OH) 2 and graphene oxide (GO) determines the specific capacitance, high-rate performance, and stability of Ni(OH) 2 -GO composites when they were used as capacitive materials with high/ultrahigh material loading. To improve this contact, the exfoliated GO from Hummers’ method is oxidized twice f…