Materials Literature
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We introduce a microscopic model for electron doped manganites that explains the mechanism of the observed transition from $G$-type antiferromagnetic ($G$-AF) to $C$-type antiferromagnetic ($C$-AF) order under increasing doping by the double-exchange mechanism. The model unravels the crucial role played by ${e}_{g}$ o…
Abstract First time in the literature, we report that polyaniline‐EB can be doped by SnCl 2 to give conducting SnO 2 doped polyaniline novel material. The composite is characterized by Fourier transform infrared, ultraviolet‐visible, X‐ray diffraction, scanning electron micrograph, transmission electron microscopy, an…
This study experimentally compared barium ferrite with conventional metal particulate media in terms of their chemical corrosion resistance and thermal stability−two important factors determining archival stability. The results confirmed the superior properties of barium ferrite even at the smaller particle sizes nece…
We establish an analytic model to illustrate the energy bandgap of ZnO hollow quantum dots (HQDs) with negative curvature surface from the perspective of nanothermodynamics. It was found that the bandgap of ZnO HQDs shows a pronounced blue-shift as comparable to those of bulk counterpart and free nanocrystals. Further…
The composition of the surface film formed on pure iron was investigated in a solution of 0.05 M NaOH and 0.05 M NaCl. Raman spectra of the film were recorded in situ during anodic polarisation over the passive region after addition of the NaCl to the electrolyte, under conditions of preresonance enhancement using exc…
Abstract Substitution of the chloro ligands of cis ‐[Pt(PEt 3 ) 2 Cl 2 ] by 4‐methylthio‐2‐thioxo‐1,3‐dithiole‐5‐thiolate ( L ) leads to the thiolato complexes trans ‐[Pt(PEt 3 ) 2 Cl L ] ( 2 ) and trans ‐[Pt(PEt 3 ) 2 L 2 ] ( 1 ), which have been characterised by X‐ray crystallography. In the solid state, the square…
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Several mechanisms have been proposed for the origin of unipolar p-type behavior in carbon nanotube (CNT) transistors including (i) O2 molecules trapped in the metal/CNT contact, (ii) OH radicals on the SiO2 surface, and (iii) O2/H2O coupling on the CNT surface. Nevertheless, the underlying mechanism is far from being…
Encapsulation of a nitroxide spin label into a host cavity can prolong the lifetime of the spin label in biological tissues and other environments. Although such paramagnetic supramolecular complexes have been extensively studied experimentally, there is yet little understanding of the role of the encapsulation on the…
We consider a system which describes the behavior of a binary mixture of immiscible incompressible fluids with shear dependent viscosity by means of the diffuse interface approach. This system consists of Navier–Stokes type equations, characterized by a nonlinear stress-strain law, which are nonlinearly coupled with a…
A simple and unique methodology to synthesize active Pd nanoparticles using Cs2.5H0.5PW12O40 heteropolyacid-supported silica (CsHPA/SiO2) under UV-light irradiation has been developed. By the photo-assisted deposition (PAD) method, a Pd2+ precursor in aqueous solution can be deposited and easily reduced by the [PW12O4…
We recently reported a two-component self-assembling system, where the core of nanoparticles (NPs) was first assembled by a simple triskelion Fmoc-conjugate (FTAEA) and then stabilized by an oligopeptide, Fmoc-FY. Here we showed that the two-component NPs were stable upon heating, incubation, and dilution. We expanded…
The use of high-velocity sheet-forming techniques where the strain rates are in excess of 10 2 /s can help us solve many problems that are difficult to overcome with traditional metal-forming techniques. In this investigation, thin metallic plates/foils were subjected to shock wave loading in the newly developed diaph…
The photoinduced ring-closure/ring-opening reactions of a series of bis-dithienylethene derivatives, as free ligands and Zn(II)-complexes, are investigated by resorting to theoretical (time-dependent density functional theory) and kinetic analyses in solution. The originality of the system stems from the tunability of…
High-density CdTe nanowires have been for the first time grown on soda-lime glass substrates via solution–liquid–solid (SLS) approach. ZnSe nanocrystals were synthesized viaTOP/TOPO route and coated on the CdTe nanowires to form CdTe/ZnSe core/shell structures. CdTe/ZnSe nanowires showed enhanced photoluminescence emi…
Abstract The dielectric dispersion and relaxation process in melt‐compounded hot‐pressed poly(ethylene oxide) (PEO)–montmorillonite (MMT) clay nanocomposite films of 0–20 wt % MMT concentration were investigated over the frequency range 20 Hz to 1 MHz at ambient temperature. X‐ray diffraction study of the nanocomposit…
Abstract Three bio‐based thiols were synthesized via the thermal thiol‐ene reactions between sucrose soya ester (SSE) and multifunctional thiols; then, thiourethane coatings were produced from these thiols and their coating properties were studied. A series of high bio‐renewable content thiol oligomers were synthesize…
Abstract Dynamically vulcanized thermoplastic elastomers nanocomposites (TPV nanocomposites) based on linear low density polyethylene (LLDPE)/reclaimed rubber/organoclay were prepared via one‐step melt blending process. Maleic anhydride grafted polyethylene (PE‐ g ‐MA) was used as a compatibilizing agent. The effects…
A novel oxidation resistant SiC/B 4 C/C nanocomposite was prepared by the pyrolysis of carborane‐containing poly(silyleneethynylenephenyleneethynylene) ( CB ‐ PSEPE ) at 1450°C in argon. The phase composition and microstructure of the carbon‐rich ceramic were investigated by X‐ray diffraction, Raman spectroscopy and t…
Hexagonally ordered spherical and cylindrical morphologies ( P 6 / mmm and P 6 / mm space group symmetries) have been identified in bulk poly(styrene- b -isoprene- b -styrene- b -ethylene oxide) (SISO) tetrablock terpolymers. These materials were synthesized by adding up to 32% by volume O blocks to a parent hydroxy-t…