Materials Literature
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ADVERTISEMENT RETURN TO ISSUEPREVReviewNEXTTitanium Dioxide Nanomaterials for Photovoltaic ApplicationsYu Bai†‡, Iván Mora-Seró§, Filippo De Angelis∥, Juan Bisquert§, and Peng Wang*†View Author Information† State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy…
This paper deals with the fracture behaviour of layered ceramic composite with residual stresses. The main goal is to investigate the effect of residual stresses and material interfaces on crack propagation by more complex 3D finite element models. The crack behaviour was described by analytical procedures based on li…
The 0.1 mol•L−1MgSO4 liquor and 5 mol•L−1 NaOH liquor were prepared by MgSO4·5H2O and NaOH as raw materials, and then different diameter nano-Mg(OH)2 powders were prepared by chemical precipitation. The DTA-TG curves data obtained was by SDT 2960 simultaneous DSC-TGA analysis apparatus. The mensuration conditions were…
4-Pyridoxolactonase from Mesorhizobium loti catalyzes the zinc-dependent lactone-ring hydrolysis of 4-pyridoxolactone (4PAL) to 4-pyridoxic acid (4PA) in vitamin B6 degradation pathway I. The crystal structures of 4-pyridoxolactonase and its complex with 5-pyridoxolactone (5PAL; the competitive inhibitor) were determi…
The effect of plasma and chemical methods on the stabilization of Polyacrylonitrile (PAN) nanofiber prepared by electrospinning technique, has been investigated at various oxygen contents (10%, 20%, and 30%) and KMnO4 solutions (3% and 5%). Fourier transform infrared (FT-IR) analysis of plasma and chemical oxidized sa…
The effects of small additions of dysprosia (1, 1.5 and 2 mol%) to zirconia-10 mol% scandia were investigated by spectroscopic techniques. The main purpose of this work was to study the influence of the rare earth additive on the structural and electrical properties of the zirconia-scandia solid electrolyte. The compo…
Lowering the operating temperature of solid oxide fuel cells (SOFC) to the range of 400 to 600°C requires powerful electrodes and thin-film electrolytes to compensate the increasing losses which arise from electrochemical processes at the electrodes and transport phenomena in the electrolyte. In this contribution we p…
The potential of oxidation pretreated Hastelloy tube as a hydrocarbon steam reforming catalyst was assessed using tetradecane, toluene, and naphthalene as model compounds. Surface characterization showed that Fe 2 O 3 , Cr 2 O 3 , MoO 3 , and NiO were formed on the surface of the alloy after oxidation at 1000°C for 2…
Composite cathodes in solid oxide fuel cells (SOFCs) improve performance by increasing the triple phase boundary length and providing a more continuous pathway through the electrolyte for oxygen ion transport. These cathodes however, are susceptible to performance degradation from exposure to contaminants such as H 2…
Electric-field-induced transformations are studied experimentally in cube-on-cube-type epitaxial film of relaxor ferroelectric (FE) ${\text{PbMg}}_{{}^{1}/{}_{3}}$${\text{Nb}}_{{}^{2}/{}_{3}}$${\text{O}}_{3}$ grown on (001) MgO substrate. The dielectric response, polarization, and current are measured along the out-of…
Hydrogels are very compliant materials suitable for tissue engineering in various areas of biological and clinical research. Appropriate and effective application of hydrogels for specific cellular regeneration often requires precise knowledge of their mechanical properties. The present work focuses on measurements of…
Growth of multifunctional thin films on flexible substrates is of great technological significance since such a platform is needed for flexible electronics. In this study, we report the growth of biaxially aligned (BiFeO3)0.5:(BiMnO3)0.5 [BFO-BMO] films on polycrystalline Hastelloy by using a biaxially aligned TiN as…
We used angle-resolved piezoresponse force microscopy (AR-PFM), vertical PFM (VPFM), and electron backscatter diffraction (EBSD) to provide a systematic interpretation of domain patterns in polycrystalline, near-morphotropic lead zirconate titanate. This material was used to illustrate the power of AR-PFM methods in r…
The concentrated polyacrylonitrile (PAN) solutions were prepared with 1‐butyl‐3‐methylimidazolium chloride ([BMIM]Cl) as solvent by static state, stirring, and kneading. The steady and oscillatory shear tests were carried out to investigate the viscoelastic behaviors of the PAN/[BMIM]Cl solutions by rotational rheomet…
Phenylisocyanate reacts with palladium(II) bis-acetate phenanthroline complexes to give six-membered palladacycles in nearly quantitative yields. In this new reaction, the acetate ligands act as decarbonylating agents toward the isocyanate functionality by possibly forming the isolated palladacycles via an intramolecu…
We study the effect of electron and phonon interface scattering on the thermoelectric properties of disordered, polycrystalline materials (with grain sizes larger than electron and phonons' mean free path). Interface scattering of electrons is treated with a Landauer approach, while that of phonons is treated with the…
In this study, hybrid composites of municipal solid waste (MSW)/banana fiber reinforced urea formaldehyde were prepared in different filler ratio. Mechanical properties such as tensile, flexural, and impact strengths were investigated as a function of total volume fraction ( V f ) of filler (MSW and banana fiber), rel…
Tuning of phase-transition characteristics in La(FexSi1−x)13 was conducted in view of the correlation between microscopic itinerant electron natures and macroscopic thermodynamic (magnetocaloric) quantities. To realize a small hysteresis loss QH accompanied by a large magnetic entropy change ΔSM in La(FexSi1−x)13, two…
A set of hybrids having gradual variation in distances between hexaphyrin and bodipy moieties, given by uses of phenylene, biphenylene, and triphenyelene bridges was prepared. Efficient PET processes from bodipy (donor) to [26]- or [28]hexaphyrin (acceptor) were successfully observed, where the PET speed was controlle…
This study highlights the effects of amphiphile chain length and counter ions on the self-assembly and dielectric behaviour of non-aqueous lyotropic liquid crystals. Two-dimensional hexagonal mesophase is seen for short-chain length sodium dodecyl sulphate, while lamellar and multiwall lamellar mesophases are noticed…