Materials Literature
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Investigating the structure of quantized plateaus in the Hall conductance of graphene is a powerful way of probing its crystalline and electronic structure and will also help to establish whether graphene can be used as a robust standard of resistance for quantum metrology. We use low-temperature scanning gate microsc…
Whether or not there is growing static order accompanying the dynamical heterogeneity and increasing relaxation times seen in glassy systems is a matter of dispute. An obstacle to resolving this issue is that the order is expected to be amorphous and so not amenable to simple order parameters. We use mutual informatio…
Amine borane type substrates show significant potential as safe and effective chemical hydrogen storage materials. β-Diketiminato(η 6 -arene)-Ru(II) complexes have shown the ability to rapidly perform the heterolytic cleavage of H 2 under mild conditions through bifunctional metal-ligand interaction. The presented wor…
Dy has been employed as an additive in NdFeB magnets to improve their coercivity and thermal stability, but the high cost of the Dy has become a major concern. In this work, the effects of Y substitution for Dy on the magnetic properties and thermal stability of melt-spun nanocomposite [Nd0.8(Dy1-xYx)0.2]10Fe84B6alloy…
Abstract Methyl‐ and phenyl‐modified MQ resins have been prepared by cohydrolysis and condensation‐polymerization of the prepolymer of sodium silicate with SiO 2 /Na 2 O = 3.33 using the ethanol solution of hexamethyldisiloxane (MM), 1,1,3,3‐tetramethyl‐1,3‐divinyldisiloxane (TMDVS), methyldiphenylethoxysilane (MDPES)…
A new route for the synthesis of functional polymers was developed. Oxidative polycoupling of 4,4′-(α,ω-alkylenedioxy) bis(diphenylacetylene)s with phenylboronic acid and (1,1,2-triphenylvinyl)phenylboronic acid, respectively, was catalyzed by [Cp*RhCl2]2 and oxidants in dimethylformamide, affording soluble polymers w…
\n\t\t\t\t\tThis book covers the areas of electrochemical heterogeneity and electrode inhomogeneity and their effects on nonuniform electrode processes, in particular, localized corrosion. It covers the fundamentals, experimental methods, and engineering aspects of electrochemical heterogeneity.\n\t\t\t\t
Polycrystalline ferrites, , (where and ), were prepared by using ceramic method. Single phase cubic structure was confirmed by X-ray diffractometer. The lattice parameter “a” was found to increase with increasing ion substitution. IR spectra of the samples were recorded from 200 to 1000 cm −1 . The two primary bands c…
The pulse width modulation (PWM) inverter is widely used for the control of motors. We showed that the iron loss under PWM inverter excitation is affected by the impedance of the excitation circuit. The dc voltage of PWM inverter, which is widely used, is constant and the control of motor is carried out by changing th…
This study shows the effect of deviation from stoichiometric composition on the anisotropy and magnetostriction of cobalt ferrite CoxFe3-xO4. Deviation from stoichiometric composition caused the magnetocrystalline anisotropy to become higher for x=0.7 and 0.8, but lower for x=0.2. The amplitude, slope and shape of the…
In the present study, we report the synthesis of Zn-ferrite nanoparticles by a soft chemical coprecipitation method. The magnetic properties of Zn ferrite are sensitive to their average crystallite size (d) which can be varied by altering the synthesis conditions. Thedvalue was controlled by the pH of the solution whi…
A series of molecular dyads has been synthesized and fully characterised. These linear, donor–spacer–acceptor compounds comprise terminal dyes selected to exhibit intramolecular electronic energy transfer (EET) along the molecular axis. The spacer is built by accretion of ethynylene–carborane units that give centre-to…
There is a considerable interest in understanding the function of antimicrobial peptides (AMPs), but the details of their mode of action is not fully understood. This motivates extensive efforts in determining structural and mechanistic parameters for AMP's interaction with lipid membranes. In this study we show that…
In this paper, an efficient catalytic route for the reduction of graphene oxide (GO) is described using hydrogen spillovered platinum (Pt) nanoparticles at room temperature. Pt nanoparticles were decorated on GO sheets using a hydrogen reduction of chloroplatinic acid. The Pt nanoparticles served as a catalyst for the…
The self-assembly and solid-state semiconducting properties of single crystals of a trisradical tricationic complex composed of the diradical dicationic cyclobis(paraquat-p-phenylene) (CBPQT(2(•+))) ring and methyl viologen radical cation (MV(•+)) are reported. An organic field effect transistor incorporating single c…
In this study, electromagnetic shielding properties of needle-punched nonwoven fabrics were investigated. The paper evaluates and compares the electromagnetic shielding of needle-punched nonwoven fabrics produced from stainless steel/polyester and normal polyester fibers. Stainless steel/polyester fiber and normal pol…
Using atomistic molecular dynamics (MD) simulation, we investigate the structure and energetic of single-stranded DNA (ssDNA) assisted solubilisation of single-layer graphene in aqueous medium at room temperature. We choose four different ssDNA oligonucleotides of homologous base sequences; namely, ssdA12, ssdG12, ssd…
The performance of a surface acoustic wave (SAW) magnetic field sensor using galfenol (FeGa) thin film is investigated in this effort. We measure the change in the SAW velocity as a function of an externally applied magnetic field for galfenol films of varying thicknesses. A maximum change of 0.64%, greater than resul…
A novel heterogeneous coordinatively unsaturated manganese monoxide-containing mesoporous carbon catalyst (C-MnO) is reported here. The catalysts exhibit high catalytic activity in wet oxidation of phenol (almost complete mineralization with an initial concentration of 50 mg/L at atmospheric pressure) and stability (r…
The electrical resistivity $\ensuremath{\rho}$ of the iron-arsenide superconductor Ba${}_{1\ensuremath{-}x}$K${}_{x}$Fe${}_{2}$As${}_{2}$ was measured in applied pressures up to 2.6 GPa for four underdoped samples, with $x\ensuremath{\simeq}0.16$, 0.18, 0.19, and 0.21. The antiferromagnetic ordering temperature ${T}_{…