Materials Literature
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With an aim to develop a better understanding of the factors influencing the electrochemical performance of doped spinel cathodes, a series of Li 1.1 Mn 1.8 M 0.1 O 4-δ F δ and Li 1+x Mn 2-2x M x O 4-δ F δ (M = Al, Ti, Cr, Fe, Co, and Ni) samples have been investigated systematically. The samples have been made by sol…
Nanoparticle-covered electrodes have altered properties as compared to conventional electrodes with same chemical composition. The changes originate from the large surface area and enhanced conduction. To test the mineralization capacity of such materials, TiO2 nanoparticles were deposited on titanium and gold substra…
Nitrogen-doped TiO 2 powders have been prepared using technical guanidine hydrochloride, titanyl sulfate, and urea as precursors via a mild hydrothermal method under initial pressure of 3MPa, 150 ∘ C holding for 2h without any postheat treatment for crystallization. The nanocrystalline N-doped TiO 2 powders were compo…
Using combined AFM ( Atomic Force Microscope) and a SEM (Scanning Electron Microscope) makes it possible to accurately measure a nano-object in 3 dimensions. This paper deals with the traceable measurements of the size and the size distribution of a SiO2 spherical shaped nanoparticle population performed by both micro…
The growth of CdTe/CdS films by a close space sublimation (CSS) technique using SiC electrical heating elements is presented. The structure, composition and optical properties of the films are studied as a function of different growth parameters and compared with previous results reported in the literature from films…
Electrochemically deposited porous film of poly(3,4-ethylenedioxythiophene) (PEDOT) on carbon paper current collector is used as the substrate for electrochemical deposition of Au. PEDOT facilitates the formation of Au nanoflowers with an enhanced electrochemical active surface area, when compared with sub-micron size…
Direct characterization of peptides with multiple disulfide bonds by mass spectrometry is highly desirable. In this study, electron transfer dissociation (ETD) of peptide disulfide regio-isomers was studied using model peptides containing two intrachain disulfide bonds. ETD provided rich sequence information (c/z ions…
A hindrance-functionalized π-stacked polymer, poly(4-(9-phenyl-fluoren-9-yl)styrene) (PPFS), was designed and synthesized by the introduction of bulky 9-phenylfluorenyl moieties (PFMs) with 3D cardo structure into all the phenyl units of polystyrene (PS) through the sp3 carbon linkage. The PFMs obviously alter π-stack…
Single crystals of undoped and 0.5 at.% Ce3+-doped Tb2.2Lu0.8Al5O12 (LuTbAG) with dimensions of up to ∅25 × 30 mm3 have been successfully grown by the Czochralski pulling method. After the single-phase was confirmed using X-ray diffraction analysis, the absorption coefficient of the undoped LuTbAG was investigated. By…
The coherent transport properties of a device, constructed by sandwiching a Mn6 single-molecule magnet between two gold surfaces, are studied theoretically by using the non-equilibrium Green's function approach combined with density functional theory. Two spin states of such Mn6 complexes are explored, namely the ferr…
Activated carbon preparation from tobacco stems by KOH activation at different activation temperatures and KOH/char mass ratios were investigated in this study. The effects of preparation parameters on activated carbon pore structure, morphometrics, microcrystallinities, and surface functional groups were characterize…
Calcium phosphate nanofibers with a diameter of only a few nanometers and a cotton-ball-like aggregate morphology have been reported several times in the literature. Although fiber formation seems reproducible in a variety of conditions, the crystal structure and chemical composition of the fibers have been elusive. U…
Over the past decade, room temperature ionic liquids (RTILs) have been widely recognized as alternative green, tunable and robust electrolytes for mesoscopic dye-sensitized solar cells (DSCs) due to their unique properties. The negligible volatility of RTILs renders them more suitable than molecular solvents for long-…
A simple and efficient catalyst removal system has been developed in the cobalt-salen-catalyzed copolymerization of propylene oxide with carbon dioxide. The present system requires no prior modification of the catalyst, and the removal is achieved by simple addition of myristic acid, followed by organic liquid-liquid…
The first examples of inorganic nitrite complexes of the natural actinides are described, including the structures of the homoleptic thorium(IV) [PPh(4)](2)[Th(NO(2))(6)] and the uranyl(VI) [PPh(4)](2)[UO(2)(NO(2))(4)] complexes; the nitrite ligand can adopt two different coordination modes in the coordination sphere…
The volatile molecular precursors CrO2Cl2 and VOCl3 were grafted to thermally dehydrated silica in order to obtain site-isolated, monopodal ≡SiO-MO(x)Cl(y-1) species (M = V, Cr). Thermal restructuring under dynamic vacuum was investigated up to 450 °C with different spectroscopic techniques (viz., NMR, UV-Vis, IR, Ram…
TiO 2 /perlite composites were prepared via facile one-step flame spray pyrolysis (FSP) route. Titanium alkoxide (TIPO) and expanded perlite were used as Ti source and substrate, respectively. Precursor TIPO-ethanol solutions containing homogeneously dispersed perlite particles were processed through FSP setup at diff…
Fabrication of three-dimensional (3D) TiO2 nanoscale architectures with spindle, tube and rod shapes, by a novel deformation assisted approach is demonstrated. Plausible growth mechanisms are predicted based on morphological investigations. Improved photocatalytic reduction of Cr(VI) is observed using the fabricated n…
Visible light photocatalytic H2 production was successfully achieved with B/CuO/ZnO in aqueous Na2S–Na2SO3 solution. ZnO and modified ZnOs were prepared by a simple mechanochemical technique followed by a combustion process. B-doped ZnO showed the better H2 productivity compared with the materials doped with C, N, F,…
Organotin compounds such as tributyltin (TBT) are known to cause various forms of cytotoxicity, including developmental toxicity and neurotoxicity. However, the molecular target of the toxicity induced by nanomolar levels of TBT has not been identified. In the present study, we found that exposure to 100 nM TBT induce…