Materials Literature
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The surface chemistry of a series of four pyrrolidinium based ionic liquids, [C(n)C(1)Pyrr][Tf(2)N] where n = 4-10, is investigated by angle resolved X-ray photoelectron spectroscopy (ARXPS). The importance of sample purity is demonstrated and the stability of the ionic liquids under X-ray irradiation investigated. It…
Nanocrystalline Ni-Fe alloy foils were fabricated by using a continuous electrodeposition system, and then they were annealed at different temperatures ranging from room temperature to 650 ℃. A ductile-brittle-ductile evolution of these alloy foils was observed along with the increase of annealing temperature, and was…
Five zinc(II) coordination polymers with 5-(4H-1,2,4-triazol-4-yl)benzene-1,3-dicarboxylic acid (H2L), {[Zn2(L)2(H2O)4]·3H2O}n (1), {[Zn2(L)2(H2O)2]·3H2O}n (2), [Zn(L)(H2O)]n (3), [Zn(L)(H2O)]n (4) and {[Zn10(L)8(μ3-O)2(H2O)6]·8H2O}n (5), have been synthesized and structurally characterized. The compounds exhibit unpr…
In this review we discuss development of sensors based on giant magnetoresistance (GMR) material.The GMR material has high magnetic and electrical properties, therefore it has great potential as next generation magnetic field sensing devices. During the last decade, intensive research efforts have been expended to dev…
Anthracene–bisboronic acid ester was designed and developed as a highly sensitive fluorescence PET sensor for the detection of trace amounts of water in various solvents (polar, less polar, protic and aprotic solvents).
Polycarbazole and polyfluorene containing cationic iridium(III) complexes in the side-chain have been designed and synthesized. Both polymers have been demonstrated to show conductance switching behavior and non-volatile flash memory devices based on them were successfully realized, in which the formation and dissocia…
The atomic-scale structure of Bioglass and the effect of substituting lithium for sodium within these glasses have been investigated using neutron diffraction and solid state magic angle spinning (MAS) NMR. Applying an effective isomorphic substitution difference function to the neutron diffraction data has enabled th…
Multicomponent, self-assembled rhomboidal constructs are reported, in which bis-terpyridines possessing 120° or 60° directionality and Zn(II) or Cd(II) in a stoichiometric ratio (1 : 1 : 2) initially form rhomboid and triangle mixtures; whereas, a tris-terpyridine reacts with the 60°-based bis-ligand and metal to quan…
New concepts on the design and synthesis of crystalline metal-organic frameworks (MOFs) have made them a subject of considerable interest in the growing field of materials science. By creating larger cavity sizes by a nearly infinite combination of metal nodes and organic linkers, many innovative characteristics of mi…
In acidic alcohol/aqueous solution, simple solvo(hydro)thermal self-assembly between Pb(II) salts, KI and pip/dabco (pip = piperazine; dabco = 1,4-diazabicyclo[2,2,2]octane) created three new organically templated iodoplumbates as the chained [H2dppip][Pb2I6]·H2O 1 and [H2depip][Pb2I6]·H2O 2 and the layered [H2dabco][…
This article reports on the fabrication of hybrid titanium dioxide (TiO2) nanoparticles grafted with thermoresponsive poly(N-isopropylacrylamide) (PNIPAM) and their self-flocculation effect caused by the thermal phase transition and entanglement behavior of PNIPAM. Surface-initiated atom transfer radical polymerizatio…
Nonassociative elasto-plasticity is the working model of plasticity for soil and rock mechanics. Yet, it is usually viewed as nonvariational. In this work, we prove a contrario the existence of a variational evolution for such a model under a natural capping assumption on the hydrostatic stresses and a less natural mo…
We present in this paper the structure resolution of a fluorinated inorganic-organic compound--Zn(3)Al(2)F(12)·[HAmTAZ](6)--by SMARTER crystallography, i.e. by combining powder X-ray diffraction crystallography, NMR crystallography and chemical modelling of crystal (structure optimization and NMR parameter calculation…
Through a combination of X-ray scattering and energy-filtered electron microscopy, we have quantitatively examined the relationship between the mesostructure of the photoactive layer and device performance in PBTTT/PC(71)BM solar cells. We can predict device performance from X-ray structural data through a simple morp…
V2O5cluster-modified N-doped TiO2(N-TiO2/V2O5) nanocomposites photocatalyst was prepared by a facile impregnation-calcination method. The effects of V2O5cluster loading content on visible light photocatalytic activity of the as-prepared samples were investigated for degradation of toluene in air. The results showed th…
Dynamical mean field theory (DMFT), combined with finite-temperature exact diagonalization, is one of the methods used to describe electronic properties of strongly correlated materials. Because of the rapid growth of the Hilbert space, the size of the finite bath used to represent the infinite lattice is severely lim…
This review demonstrates advances in XRF instrumentation and applications published between April 2011 and March 2012.
Graphene anchored with nanocrystal Fe2O3 was synthesized by a two-step solvothermal route. The nanocomposite was characterized by X-ray diffraction (XRD), Raman spectra, X-ray photoelectron spectroscopy (XPS), thermogravimetric analysis (TGA), scanning electron spectroscopy (SEM) and transmission electron microscopy (…
Plastic deformation and ductile fracture of Ti-6Al-4V plate stock is investigated under multiple loading conditions.The objective of this study is to generate experimental data that can be used for the development and calibration of constitutive and failure models for numerical simulations of dynamic events.Plastic de…
New magnetic core–shell-structured nanoporous organosilica microspheres consisting of a Fe3O4 core and an organosilica shell with a built-in N-heterocyclic carbene (NHC) moiety were synthesized through surfactant-directed self-assembly on surface. The structure and composition of the material thus-designed were confir…