Materials Literature
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The light modulating ability of gradient polymer-disposed liquid crystal (PDLC) single layer of large droplets formed by nematic E7 in UV-cured polymer NOA65 is studied. Operating at relatively low voltages, such PDLC film with a of thickness 10-25 μm and droplet size up to 50 μm exhibits a good contrast ratio and is…
Abstract Three new complex molybdenum oxides – Cs 2 Fe 2 (MoO 4 ) 3 , Cs 4 Fe(MoO 4 ) 3 and CsFe 5 (MoO 4 ) 7 – with average oxidation states of Fe +2 and +2.6 were obtained during a study of phase formation in the system Cs–Fe II,III –Mo–O and investigated by X‐ray single‐crystal analysis at room temperature and 100…
The polysaccharide chitin is widely distributed in the biosphere and, like cellulose, it is a highly abundant biopolymer available from renewable resources.1 The annual regeneration of chitin by biosynthesis is even higher than that of cellulose.2-4 The principal source for production of chitin is waste from processin…
Abstract A new method of preparation of poly(alkylene H‐phosphonate)s by ring‐opening bulk polymerization of the five‐ and six‐membered cyclic phosphonates monomers using the nontoxic Maghnite‐H + as the initiator is described. Cyclic phosphonate monomers have been first synthesized. In particular, a new one‐step synt…
The decompositions of lithium amide (LiNH 2 ) and lithium imide (Li 2 NH) are important steps for hydrogen storage in Li 3 N. Herein, the decompositions of LiNH 2 and Li 2 NH with and without anion promoter were investigated by using temperature-programmed decomposition (TPD) and X-ray diffraction (XRD) techniques. It…
Abstract The effects of three preparation variables, i.e. reaction temperature, reaction time and reaction gas (methane/nitrogen) flow rate, on the ratio of the intensity of the Raman D band to the intensity of the G band ( I D / I G ), carbon mass and the presence of radial breathing mode (RBM) peaks were investigate…
Abstract The syntheses and characterisation of a new family of isostructural mixed‐metal selenites based on the zemannite‐type framework are described. These Ba M 2 (SeO 3 ) 3 · 3H 2 O phases are built up from three‐dimensional networks of M O 6 ( M = Co, Ni, Mn, Mg) octahedra and SeO 3 pyramids. The octahedral groups…
It is known that the parity of a reflection amplitude can either be even or odd under a mirror operation. Up to now to our knowledge, all the parities of a reflection amplitude in the one-mode energy region have been even under a mirror operation. In this paper, we give an example of odd parity for Andreev reflection…
We report $p$-type Li${}_{y}$Ni${}_{0.97\ensuremath{-}y}$Mn${}_{0.03}$O thin films (LNMO) via a simple solution method on silicon substrates. Magnetization measurements reveal that room-temperature tunable ferromagnetism can be observed in these LNMO thin films. The Mn ${L}_{2,3}$ x-ray absorption and core-level photo…
We have performed a comparative study on the reactivity of metallic and semiconducting nanotubes using infinite and finite models. Infinite models were created using periodic boundary conditions while finite ones were constructed by means of hydrogen terminated nanotubes sections. Cluster models systematically underes…
We report on two dimensional (2D)-nanostructured Na x CoO 2 with enhanced thermoelectric properties prepared by the exfoliation/restacking method. We have shown that the exfoliation/restacking method is an effective route to constructing nanostructured cobalt oxide. Such a nanostructured sodium cobalt oxide results in…
Abstract Two new Cu II coordination polymers based on α‐Keggin polyoxotungstates, [Cu 2 (dpa) 2 (H 2 O) 2 (GeW 12 O 40 )] · 0.5CH 3 COOH ( 1 ) and [Hdpa][Cu 2 (dpa) 2 (4,4′‐bipy)(H 2 O) 2 (PW 10 V 2 O 40 )] ( 2 ) (dpa = 2,2′‐dipyridylamine, 4,4′‐bipy = 4,4′‐bipyridine), were obtained by solvothermal reactions in glaci…
Abstract Highly crystalline codoped Ho 3+ ,Tm 3+ ,Yb 3+ KLu(WO 4 ) 2 monoclinic nanocrystals with the C 2/ c space group symmetry were synthesized by the modified Pechini method. Powder X‐ray diffraction, transmission electron microscopy, upconversion photoluminescence spectra, and kinetic decay were used to character…
This short review covers the emerging research field of interface superconductivity in complex oxide heterostructures. The first part of the paper is devoted to the prediction and observation of an interfacial superconducting state in metallic/insulating copper oxide bilayers. In the second part of the manuscript, the…
The structure at the interface between elements or phases that exhibit different hydrogen (H) binding energies exerts a profound influence on the thermodynamics of H in nanophase materials. In this paper, we study the local structure at the Mg/Pd interface in Mg nanoparticles with partial Pd coating, and we map its ev…
It has been clarified that syndiotactic polystyrene (sPS) forms co-crystalline structures with polyethylene glycol dimethyl ethers (PEGDMEs) with molecular weights ranging from 178 to 1,000 g·mol(-1) through a guest exchange procedure assisted by a plasticizing agent. The PEGDME molecules are incorporated into the spa…
In this article, we report the synthesis of ultra-long carbon nanotubes (CNTs) by thermal chemical vapour deposition method. Ultra-long, individual and aligned CNTs were directly grown on a flat silicon substrate. The orientation of the nanotubes was found parallel to the gas flow direction. The ultra-long CNTs were g…
Abstract A polar indium thioantimonate, namely [Ni(en) 3 ][InSbS 4 ] ( 1 ) (en = ethylenediamine), has been synthesized under solvothermal conditions. Its structure features a left‐handed helical anionic chain of [InSbS 4 ] n 2 n – moieties built upon trinuclear heterometallic clusters of {In 2 SbS 8 } as secondary bu…
An intense and broad visible photoluminescence (PL) band was observed at room temperature in short-range disordered BaWO 4 crystals. The scheelite crystalline BaWO 4 powders prepared by the polymeric precursor method and annealed at different temperatures were structurally characterized by means of X-ray diffraction a…
In this work, the pore size-dependent PPL diffusion and protein distribution in SBA-15 support have been investigated in detail by confocal laser scanning microscopy (CLSM) and X-ray diffraction (XRD) observations in combination with hindered diffusion simulation, intraparticle diffusion analysis, and apparent kinetic…