Materials Literature
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A series of defect-engineered metal-organic frameworks (DEMOFs) derived from parent microporous MOFs was obtained by systematic doping with defective linkers during synthesis, leading to the simultaneous and controllable modification of coordinatively unsaturated metal sites (CUS) and introduction of functionalized me…
Graphing graphene: Because the naming of graphene-based materials (GBMs) has led to confusion and inconsistency, a classification approach is necessary. Three physical-chemical properties of GBMs have been defined by the GRAPHENE Flagship Project of the European Union for the unequivocal classification of these materi…
By considering the qualitative benefits associated with solution rheology and mechanical properties of polymer semiconductors, it is expected that polymer-based electronic devices will soon enter our daily lives as indispensable elements in a myriad of flexible and ultra low-cost flat panel displays. Despite more than…
Control of the orientation of block copolymers in self-assembled nanostructures is important for their applications in organic semiconductors, lithographic nanopatterning, separation membranes, and nanofabrication templates. We recently reported that addition of magnetically sensitive metal complexes to block copolyme…
Advanced nanostructured materials, such as gold nanoparticles, magnetic nanoparticles, and multifunctional materials, are nowadays used in many state-of-the-art biomedical application. However, although the engineering in this field is very advanced, there remain some fundamental problems involving the interaction mec…
The dynamics of the Johari–Goldstein (JG) β relaxation and the α relaxation in bulk metallic glasses (MGs) has been investigated by using mechanical spectroscopy combined with the Coupling Model. The β relaxations of MGs exhibit different behaviors such as peaks, humps, and excess wings due to the different fluctuatio…
Abstract ASTM E1820-11, the most widely adopted standard for the determination of fracture toughness parameters, recommends two ductile crack growth correction methods for the evaluation of the J-integral parameter, viz., the basic test (BT) method and the resistance curve test (RC) method. In the present work, a comp…
Show me the way: protein building blocks are programmed to assemble hierarchically and yield a defined fiber morphology of micrometric length and precise nanometric diameter. The key step of this method is to align the building blocks with an AC field prior to assembly. The resulting protein nanofibers are straightfor…
Instant detection of trace-level nitroaromatic explosives is highly desirable for national security and environmental protection. In this paper, a new strategy for the construction of nitroaromatic-indicator paper was proposed based on a mixture of red emitting cysteamine modified cadmium telluride quantum dots and gr…
The electroactivity of polyaniline (PANI) can be solely retained in acidic media. However, the acidity requirement greatly limits its potential applications such as biosensors and anticorrosion, where neutral circumstances have to be faced. Herein, PANI is conformally loaded into anodic titanium oxide (ATO) nanotubes…
Dynamic distortions and polaronic effects have been investigated in La0.8Ba0.2Mn1–xAlxO3 doped manganites of R3¯c symmetry. We studied the transport and magnetic properties and constructed a phase diagram of this system. We also analyzed the dependence of the transport data on the doping level x. The dependence of the…
Mesostructured cellular foam (MCF) silica spheres with different textual parameters were synthesized using a triblock copolymer as a template. The effects of acid concentration and aging time on the window size and morphology were discussed. Besides, the adsorption performances of lysozyme and bovine serum albumin on…
Abstract We present a method for measuring the heat capacity of a rock specimen using a divided bar apparatus in a “transient” mode. The specific heat capacity can be derived if the mass of the specimen is known. Thermal conductivity can be measured during a steady-state phase of the measurement process, and longitudi…
Single crystals of dithulium disilicate, Tm2Si2O7, were obtained in flux synthesis experiments in the system SiO2-Tm2O3-LiF at ambient pressure. The compound belongs to the group of sorosilicates, i.e. it is based on [Si2O7]-units and crystallizes in the thortveitite (Sc2Si2O7) structure type. The Tm(3+) cation (site…
To date studies regarding the growth and characterization of polyacrylonitrile (PAN)-based polymer single crystals have been limited. Polyacrylonitrile- co -methacrylic acid (PAN- co -MAA) was used in this work, which outlines the conditions for three major types of solution-grown crystals. Electron microscopy and dif…
Development of planar solid oxide fuel cell systems for automotive application is mostly driven by light‐weight design and durability issues. The joining technology utilized to seal ceramic and metallic stack components plays a key role. Rapid and frequent start‐up capability is required for customer satisfaction. Fur…
Insulating or semiconducting oxides prepared in the form of ultrathin films grown on a metal may exhibit phenomena and behaviors that make them quite interesting for their potential applications in catalysis and other fields. In this review we consider in particular what is probably the most relevant one of these phen…
The complex linear and nonlinear ac susceptibility have been thoroughly investigated in the low bandwidth manganite compound Pr(1-x)Ca(x)MnO3 (PCMO) for the doping range x = 0.0-0.3 with and without a superimposed background dc field. The dynamical ac response shows substantial differences between the samples. The sam…
We report on a ìSR and 55 Mn NMR investigation of the magnetic order parameter as a function of temperature in the optimally doped La(5/8)(CaySr(1.y))(3/8)MnO3 and in the underdoped La1.xSrxMnO3 and La1.xCaxMnO3 metallic manganite families. The study is aimed at unravelling the effect of lattice distortions, implicitl…
Composites are becoming increasingly important in the aerospace industry. At least 30-40 per cent of modern airframes are now made of composites, and this percentage is increasing rapidly due to technological advances in the field. The use of composites for primary structures such as fuselages and wings has grown sign…