Materials Literature
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The orientation of CTA + in the interlayer of organic pillared montmorillonite prepared by adding different amounts of surfactant corresponding to the CEC of the pristine clay mineral has been studied using X‐ray diffraction (XRD), Fourier Transform Infrared (FTIR) spectra. Morphology of the samples was examined by sc…
We explore a combination of density-functional theory with supplemented Coulomb $U$ ($\mathrm{DFT}+U$) and ab initio molecular dynamics simulations to investigate the spin-crossover (SCO) phenomenon in coordination polymers. We demonstrate the applicability of the method for the case of bimetallic metal-organic framew…
To determine the applicability of LaCo(1-x)Ni(x)O(3) in a conductive material for electrical wiring, the dependence of the electronic transport property on the Ni content is investigated via Hall effect measurements, Rietveld analyses, and band-structure calculations. Ni doping (50 mol %) into the Co sites realizes a…
CdMoO(4):Mn nanocrystals with a tetragonal crystal structure were prepared by aqueous coprecipitation method at a low temperature of 2 °C under different pH values. The size of the CdMoO(4):Mn nanocrystals of spherical morphology increases with the Mn dopant concentration from 35 to 55 nm for pH = 4. The morphology co…
The formation of mild steel (MS) and copper (Cu) explosively formed projectiles (EFPs) was simulated in AUTODYN using both the Johnson-Cook (JC) and modified Johnson-Cook (JCM) constitutive models. The JC model was modified by increasing the hardening constant by 10%. The previously established semi-empirical equation…
Based on ab initio density functional calculations of Si nanocrystals (NCs) in a SiO${}_{2}$ matrix we study the impact of NC size and separation on electronic properties and present consequences for inter-NC carrier transport. The NC size and separation significantly influence the electronic structure of three-dimens…
ZnO nanowire arrays were functionalized with colloidal CdSe quantum dots stabilized by 3-mercaptopropionic acid to form hybrid devices. The photoconductivity of the nanowire/quantum-dot devices was studied under selective photoexcitation of the quantum dots, and it was found that the dynamics strongly depend on the ga…
The relationship between vacancy ordering and magnetism in TlFe(1.6)Se(2) has been investigated via single crystal neutron diffraction, nuclear forward scattering, and transmission electron microscopy. The examination of chemically and structurally homogeneous crystals allows the true ground state to be revealed, whic…
PURPOSE: To determine the effect of different bleaching wavelengths on the response of Al(2)O(3):C optically stimulated luminescence detectors (OSLDs) exposed to accumulated doses of 6 MV photon beams. METHODS: In this study the authors used nanoDot OSLDs readout with a MicroStar reader. The authors first characterize…
Enantiodifferentiating geometrical photoisomerizations of (Z)-cyclooctene and (Z,Z)-1,3-cyclooctadiene were performed by using the pyromellitate-linked cyclodextrin network polymer, termed "cyclodextrin nanosponge (CDNS)", as a supramolecular sensitizing host. The photochirogenic behavior of the nanosponges incorporat…
n-Type graphene: A new, easy, and cheap method to produce n-type reduced graphene oxide was developed by synthesizing a partially reduced intermediate containing nitrogen (PrGO-IL, see scheme) by treating graphene oxide (GO) with an ionic liquid (IL) at 160 °C followed by rapid thermal annealing (RTA) at temperatures…
Twenty seven poly(ester–urethane–amide)s (PEUAs) were synthesized from the reaction of α,ω-telechelic poly(ε-caprolactone) diols, 1,6-hexamethylene diisocyanate, and three different diamide–diol chain extenders derived from ε-caprolactone and three aliphatic diamines with increasing length ( n = 2, 4, and 6). The hard…
By compressing elemental lithium and hydrogen in a diamond anvil cell, we have synthesized lithium hydride (LiH) at pressures as low as 50 MPa at room temperature. Combined Raman spectroscopy and synchrotron x-ray diffraction measurements reveal that, once synthesized, LiH remains stable at 300 K up to 160 GPa in the…
Besides biodegradability and biocompatibility, linear–dendritic biodegradable block copolymers present unique hierarchical self-assembly and multivalent characteristics, making them appealing in stimuli-responsive nanomedicine and hydrogel applications. This minireview highlights the recent progress on linear–dendriti…
A diimine ligand, LL = 2-C 5 H 4 NCH═N-4-C 6 H 4 N═NPh, which carries a trans -azobenzene substituent, forms the dimethylplatinum(II) complex [PtMe 2 (LL)], which undergoes trans oxidative addition with MeI, PhCH 2 Br, Br 2, and I 2 to give the corresponding organoplatinum(IV) complexes [PtIMe 3 (LL)], [PtBrMe 2 (CH 2…
The two-carrier transport model as proposed for the two-dimensional electron gas formed at the interfaces of oxide heterostructures is investigated by means of a combined perturbation by near-ultraviolet radiation and an electrostatic field, applied both separately and simultaneously. Comparison of the photoresponse o…
Abstract The process of plastic deformation in semicrystalline polymers is complicated due to the operation of a variety of mechanisms at different levels and is strongly dependent on their underlying microstructure. The objective of this work is to establish a quantitative relation between the microstructure and the…
In this endeavor, a new type of nanocomposites has been developed from conducting organic polymers (layer-by-layer in situ polymerization of various monomers) and functionalized multiwalled carbon nanotubes (MWCNTs). Initially, functionalization of MWCNTs was achieved by sulfuric acid (H 2 SO 4 ):nitric acid (HNO 3 )…
A solution-processed graphene content was synthesized by treatment of graphite oxide (GO) with phenyl isothiocyanate (PITC) by taking advantage of the functional carboxyl groups of graphene oxide. The GO was prepared by the oxidation of natural graphite powder and was expanded by ultrasonication in order to exfoliate…
An organic ligand 4-(1,2,4-triazol-1-yl) benzoic acid (Htzbc) with a nonlinear optical (NLO) chromophore has been synthesized. Reaction of Zn(NO 3 ) 2 with Htzbc ligand in 1- n -butyl-3-methylimidazolium tetrafluoroborate ionic liquid afforded compound Zn(tzbc) 2 ( 1 ). The Htzbc organic solid and 1 crystallize in the…