Materials Literature
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Plasma polymer films (PPF) have increasing applications in many fields due to the unique combination of properties of this class of materials. Among notable features arising from the specifics of plasma polymerization synthesis, a high surface reactivity can be advantageously used when exploited carefully. It is relat…
Acoustic avalanches are a general feature of solids under stress, e.g., evoked by external compression or arising from internal processes like martensitic phase transformations. From integral measurements, it is usually concluded that nucleation, phase boundary pinning, or interface incompatibilities during this first…
Corrosion is the gradual deterioration of a material or its properties through a chemical reaction with its environment.There are several methods of preventing a material from corroding.Cathodic protection (CP) and coatings are very popular methods for corrosion protection.Each individual method has its own benefits a…
We investigate the mechanical properties of graphane using first-principles calculations based on density functional theory (DFT) with van der Waals (vdW) interactions in DFT-D2 approach. The mechanical stability of graphane was tested with three deformation modes — armchair, zigzag, and biaxial. We find that it is sa…
The pentanuclear compound [V(II)(tmphen)2]3[Mo(III)(CN)6]2 (tmphen = 3,4,7,8-tetramethyl-1,10-phenanthroline) exhibits a record antiferromagnetic exchange coupling constant of J(V-Mo) = -114 cm(-1). This is the first example of a heterobimetallic cyanide compound with such strong magnetic coupling.
A nitrogen-, phosphorus- and chlorine-containing flame retardant, hexachlorocyclotriphosphazene (HCTP), has been covalently grafted onto the surface of multi-wall carbon nanotubes (MWNT) to obtain MWNT-HCTP. Polyamide 6 (PA6)/MWNT composites were then prepared via melt compounding. The flammability of PA6/MWNT composi…
Hollow graphitic carbon nanoparticles (HGCNs) obtained by catalytic graphitization of acetylene carbon black (ACB) were investigated using ultra-soft X-ray emission spectroscopy. The electronic structures of the ACB HGCNs were compared with those of HGCNs obtained from iron carbide-filled carbon nanocapsules (Fe3C@CNC…
In recent years, magnetic-based technologies, like nanomagnet logic (NML), are gaining increasing interest as possible substitutes of CMOS transistors. The possibility to mix logic and memory in the same device, coupled with a potential low power consumption, opens up completely new ways of developing circuits. The ma…
The grain boundary diffusion (GBD) was applied to magnetically aligned Nd-Fe-B sintered magnets on their different surfaces. The demagnetization curves show better squareness for Dy diffusing from the pole surfaces than that from the side surfaces. Kerr magnetic domain patterns on magnet surfaces in aligned and unalig…
We investigate the thermodynamic properties and the lattice stability of two-dimensional crystalline membranes, such as graphene and related compounds, in the low-temperature quantum regime $T\ensuremath{\rightarrow}0$. A key role is played by the anharmonic coupling between in-plane and out-of-plane lattice modes tha…
We explore the analytical performance and limitations of optically monitoring aqueous-phase temperature using protein-protected gold nanoclusters (AuNCs). Although not reported elsewhere, we find that these bio-passivated AuNCs show pronounced hysteresis upon thermal cycling. This unwanted behaviour can be eliminated…
Chemical decoration of defects is an effective way to functionalize graphene and to study mechanisms of their interaction with environment. We monitored dynamic atomic processes during the formation of a rotary Si trimer in monolayer graphene using an aberration-corrected scanning-transmission electron microscope. An…
A novel anode with a Ni0.5Cu0.5Fe2O4 (NCFO)–BaZr0.1Ce0.7Y0.1Yb0.1O3−δ (BZCYYb) composite on NiO–Y2O3 stabilized ZrO2 (YSZ) is fabricated and investigated in dry and wet (3 mol% H2O) CH4 at temperatures ranging from 650 to 800 °C. For comparison, a conventional NiO–YSZ anode is also prepared. In H2–3 mol% H2O at 600 °C…
Controlling the assembly modes of different crystalline nanoparticles in composites is important for the expression of specific characteristics of the assembled structures. We report a unique procedure for increasing water contact angles (CAs) of composite film surfaces via the assembly of two different hydrophilic co…
Chiral glutathione (GSH)-protected bimetallic Au–Ag nanoclusters (AuAg(SG)) are synthesized by the reduction of mixtures of Au and Ag salts at the feed mole ratio of Au/Ag = 3/1 in the presence of GSH and isolated by gel electrophoretic separation, yielding a family of magic-numbered bimetallic Au–Ag nanoclusters. The…
Tungsten, in varying amounts, was incorporated into a SBA-16 structure via a one-pot direct synthesis method under an acidic medium using Pluronic F127 triblock co-polymer as a template and n -butanol as a co-surfactant. Tetraethyl orthosilicate (TEOS) and sodium tungstate were used as the Si and W sources, respective…
Stem cells have emerged as potentially useful cells for regenerative medicine applications. To fully harness this potential, it is important to develop in vitro cell culture platforms with spatially regulated mechanical, chemical, and biological cues to induce the differentiation of stem cells. In this study, a cell c…
Visual oxygen indicators can give information on the quality and safety of packaged food in an economic and simple manner by changing color based on the amount of oxygen in the packaging, which is related to food spoilage. In particular, ultraviolet (UV)-activated oxygen indicators have the advantages of in-pack activ…
Ultrafast laser pulses induced surface nanostructures were fabricated on a copper (Cu) target through ablation in acetone, dichloromethane, acetonitrile, and chloroform. Surface morphological information accomplished from the field emission scanning electron microscopic data demonstrated the diversities of ablation me…
The interaction between graphene-based nanomaterials and modified nucleobases (MBs) is important in the development and design of new biosensors. The adsorption of MBs on the surface of graphene (G), boron-doped graphene (BG), nitrogen-doped graphene (NG), and silicon-doped graphene (SiG) has been investigated using e…