Materials Literature
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Using state-of-the-art first-principles calculations, we study the properties of the ferromagnetic Heusler compounds NiYSi, where Y stands for V, Cr, or Mn. NiCrSi and NiMnSi contrary to NiVSi are half-metallic at their equilibrium lattice constant exhibiting integer values of the total spin magnetic moment, and thus…
A red-emitting phosphor was systematically investigated by means of X-ray powder diffraction, diffuse reflection spectra, photoluminescence excitation and emission spectra, a concentration quenching process, and a thermal quenching process with the aim to enlarge the fundamental knowledge about the luminescence of in…
AD (aerosol deposition) method is one of newly developed technologies for spray coating powder materials. It is a revolutionary coating technology in which high-density consolidation of ceramic powder can be obtained at room temperature, without sintering at high temperature as in conventional ceramic formation. By us…
When pillaring a well crystalline synthetic hectorite using molecular pillars, we obtained a truly microporous material for the first time that displays long range order of the pillars and consequently a narrow pore size distribution.
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The optical properties and structure of hydrophobic antireflective coatings (AR) deposited from silica sol and HMDS and MTMS were characterized in detail in this study. The influence of sol modification parameters on the antireflective behaviour of coatings has been investigated. For the characterization of hydrophobi…
Influence of temperature dependence of solubility for each phase on kinetics of reactive diffusion has been theoretically analyzed for a hypothetical binary system consisting of two primary solid-solution phases (α and γ) and one compound phase (β). For the analysis, we consider that the β phase is produced owing to t…
Recent investigations on the design and synthesis of electrochromic materials based on switchable three-station [2]catenanes are summarized. The reasoning and preliminary experiments behind the design of electrochemically controllable red–green–blue (RGB), donor–acceptor [2]catenanes are presented. A basis for color g…
An exclusively chelating ligand bridged high-valent [MnIV3] complex has been synthesized, in which all Mn(IV) ions are ferromagnetically-coupled to exhibit an S(T) = 9/2 spin ground state.
We previously found that polysaccharide "schizophyllan (SPG)" can entrap as-grown and cut single-walled carbon nanotubes (as-SWNTs and c-SWNTs, respectively): we here reported that the c-SWNT-s-SPG (single stranded SPG) composites thus obtained can be aligned regularly using the covalent bond formation between boric a…
An unexpected oxygen-assisted reduction of cationic Au species by CO was found on a Au/SiO(2) catalyst at room temperature and the produced metallic Au species plays an essential role in CO oxidation on Au/SiO(2).
Three-dimensional (3D) architectures of layered fibers 60–80 nm in diameter have been prepared by an electrospinning method for rechargeable lithium-ion batteries. To resolve the instability of a 3D structure induced by lithium intercalation and deintercalation, a lithium phosphorous oxynitride (LiPON) layer was coate…
Faced with numerous challenges raised by the requirements of the modern industries for higher power and higher energy, supercapacitors study started playing an important role in offering viable solutions for some of these requirements. This paper presents the surface redox reactions based modeling in order to study th…
The polycrystalline sample of was prepared by a high-temperature solid-state reaction technique. The effect of temperature on impedance parameters was studied using an impedance analyzer in a wide frequency range ( Hz). The real and imaginary parts of complex impedance trace semicircles in the complex plane. The tempe…
A novel bio-based thermosetting elastomer was prepared by the lipase-catalyzed polymerization of methyl ricinoleate with subsequent vulcanization. Some mechanical properties of the cured carbon black-filled polyricinoleate compounds were evaluated as a thermosetting elastomer. It was found that the carbon black-filled…
A ligand field analysis of two structurally related hexanuclear Mn(iii) coordination complexes reveals that the observed difference in their ground spin-state anisotropy originates from the difference in projection coefficients of the single-ion anisotropy to spin states of different total spin quantum-number, S, rath…
A colorless polynuclear heterometallic yttrium(III)–copper(I) iodide cluster [Y6(μ6-O)(μ3-OH)8(DMSO)16(H2O)2]8+ [Cu2I4]2−6[I]− (1), isolated in a moderate yield from the hydrolytic reaction of [Y(DMSO)6(DMF)2][CuI3][I] in acetonitrile, undergoes unique crystal-to-crystal transformation to give reddish-yellow cluster […
The synthesis and polymerization of Cl2MeSi–NH–BCl2 (MADB) and ClMe2Si–NH–BCl2 (DADB) is reported. MADB and DADB are obtained in two-step reaction sequences from MeSiCl3, Me3Si–NH–SiMe3 (HMDS), and BCl3 (→ MADB) or Me2SiCl2, HMDS and BCl3 (→ DADB). The monomeric single source precursors are structurally characterized…
Due to their solvent-free chemistry and low environmental impact, aqueous silicates appear as promising alternative precursors to silicon alkoxides for the development of a greener sol-gel process. In this context, aqueous routes to silica/biopolymer composite materials are described here, allowing the formation of si…
The author clarified the characteristic of activated carbon prepared from biomass (rind of sugar cane bagasse (rind), pith of sugar cane bagasse (pith), rice straw (rice), bamboo (barn)) with different ratios of NaOH. In addition, the characteristic of electric double-layer capacitance of each activated carbon was cla…