Materials Literature
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By controlling the temperature of the reaction systems, three new inorganic–organic hybrid arsenomolybdates [Cu4(en)4O2(H2O)2][H2AsV2Mo6O26] (1) (en = ethylenediamine), [Cu(en)2(H2O)]4[Cu(en)2(H2O)2]{[Cu(phen)(en)][AsIIIAsVMoVI9O34]2} (phen = 1,10-phenanthroline) (2) and (H2en)[Cu(en)2][(CuO6)Mo6O18(AsIII3O3)2]·10H2O…
Silicon (Si) nanoparticles embedded in a Mg2Si matrix (Mg2Si/xSi) have been successfully synthesized at 623 K from MgH2 and Bi containing Si nanoparticle powders. The use of MgH2 in this synthetic route avoids the formation of oxides through the generation of hydrogen and provides a route to homogeneously mixed Si nan…
Nanocrystalline porous N-doped ceria films have been prepared by combining sol–gel chemistry, evaporation-induced self-assembly (EISA), flash crystallization and treatment in NH3 gas between 550 and 700 °C at flow rates of 270 and 670 cm3 min−1. The maximum nitrogen uptake is 0.06 moles per Ce, observed for the sample…
We report on the utilization of mixed diblock copolymer micelles as an integrated multifunctional platform for the cancer cell-targeted delivery of chemotherapeutic drugs and magnetic resonance (MR) imaging contrast enhancement under in vitro and in vivo conditions. Two types of amphiphilic diblock copolymers, PCL-b-P…
A coarse-grained model for flexible polymers end-grafted to repulsive spherical nanoparticles is studied for various polymer lengths, grafting densities, and nanoparticle sizes by molecular dynamics simulations, considering variable solvent quality in the framework of an implicit solvent treatment. Below the theta poi…
The effective thermoelectric behavior of layered heterogeneous medium is studied, with the distribution of temperature, electric potential, and heat flux solved rigorously from the governing equations, and the effective thermoelectric properties defined through an equivalency principle. It is discovered that the effec…
A review is presented based on our 50 year involvement in studying carbon materials physics and carbon-based nanostructures. The review topics include an early history of studies of graphene and graphite, graphite intercalation compounds, forerunners of nano-carbons, fullerenes, carbon nanotubes and, finally, graphene…
Polyoxyethylene sorbitan monooleate (Tween-80)/sorbitan monooleate (Span-80)-based organogels were prepared by a fluid-filled structure mechanism by varying the composition of the organogels. The microstructures of the organogels were studied by light microscopy. The organogels were subjected to the accelerated stabil…
CaMgSi2O6:Mn diopsides are used for in vivo long-lasting phosphorescence (LLP) imaging. Trapping defects involved in the LLP mechanism were investigated. On annealing Mn-doped diopsides at 1100 °C in an Ar–H2 atmosphere, Ca EXAFS/XANES and electron paramagnetic resonance (EPR) evidenced paramagnetic oxygen vacancies w…
We report the effect of neodymium (Nd) doping of TiO2 thin films produced on quartz, soda lime and silicon substrates by RF co-sputtering of two targets of TiO2 and metallic Nd. The Nd/Ti ratio was varied in the range of 0.9–100 at.%. A study based on a joint use of Auger electron spectroscopy and X-ray fluorescence a…
We have demonstrated that polystyrene (PS) nanofibers having an ordered surface line texture can be produced on a large scale from a PS solution of acetone and N,N′‐dimethylformamide (2/1, vol/vol) by a needleless electrospinning technique using a disc as fiber generator. The formation of the unusual surface feature w…
The beneficial effect of the removal of MnS inclusions on the pitting of stainless steels has been demonstrated in two ways. (1) High-purity Type 316L stainless steel with no inclusions was used as a specimen in the measurement of anodic polarization curves in 0.5 M NaCl and (2) commercial Type 316L stainless steel wi…
A facile additive-assisted complex-precursor solution method is demonstrated for one-pot assembly of well-defined hierarchical Cu2O nanospheres with tunable sizes and shapes. Structural and morphological evolutions were investigated by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), transmission elect…
Three dimensional (3D) cell culture in functional scaffolds to mimic the cell natural growth state is important for the construction of cell based implants in vitro for tissue engineering applications. Herein, we report a novel fluffy polypyrrole (PPy) fibrous scaffold (fluffy-PPy scaffold) fabricated by means of an i…
Reactivity of supported gold catalysts is a hot topic in catalysis for many years. This communication reports an investigation on the dissociation of molecular hydrogen at the perimeter sites of Au/TiO(2) and the spillover of hydrogen atoms from the gold to the support using density functional theory calculations. It…
In this study, we report on a rapid microwave nonaqueous strategy for the straightforward synthesis of hierarchical porous quaternary chalcogenide Cu2FeSnS4 (CITS) hollow chain microspheres (HCMs) for the first time. It was demonstrated that both in situ generated 1D CuI(Tu)Cl complex microrod sacrificial precursor an…
Mg-doped ZnO nanoparticles were synthesized by planetary ball milling at a speed of 400 rpm and milled for 20 h. The samples were characterized by XRD, SEM and UV-Vis spectrophotometer. The crystallite size of the samples increased and the lattice strain decreased with an increase of MgO loading. The increase in cryst…
In this communication, we develop a facile one-pot green strategy toward CuO–Cu2O–Cu nanorod-decorated reduced graphene oxide (CuNRs–rGO) composites by hydrothermal heating of the mixed solution of GO and Cu(OAc)2 under basic conditions without the use of extra reducing agents. As-synthesized composites have been succ…
We demonstrate a facile, generic method for the fabrication of highly dense long range hexagonally ordered various inorganic oxide nanodots on different substrates by using a microphase separated polystyrene-b-poly(ethylene oxide) (PS-b-PEO) block copolymer (BCP) thin film as a structural template. The method does not…
A versatile macro-initiator with dual functional anchoring groups for surface-initiated atom transfer radical polymerization (SI-ATRP) on various substrates is reported. Conventional free radical copolymerization was performed with N-(3,4-dihydroxyphenyl) ethyl methacrylamide (a dopamine anchor-containing monomer), 4-…