Materials Literature
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We present the design of a general-purpose convection chamber that produces a stable environment for studying the growth of ice crystals from water vapor in the presence of a background gas. Crystals grow in free fall inside the chamber, where the temperature and supersaturation are well characterized and surprisingly…
ADVERTISEMENT RETURN TO ISSUEPREVCommentNEXTComment on “Formation and Thermal Stability of Au2O3 on Gold Nanoparticles: Size and Support Effects”J. Michael Gottfried†View Author Information Universität Erlangen-Nürnberg, Lehrstuhl für Physikalische Chemie II, Egerlandstrasse 3, 91058 Erlangen, Germany† Contact Informa…
Si-doped ZnO can be synthesized on the surface of the early grown Zn 2 SiO 4 nanostructures and form core/shell coaxial heterostructure nanobelts with an epitaxial orientation relationship. A parallel interface with a periodicity array of edge dislocations and an inclined interface without dislocations can be formed.…
Abstract The highly dispersed property of poly(vinylpyrrolidone) (PVP)-coated cerium oxide nanoparticles can be retained for a long time in polar solvents. In this 13C CP/MAS NMR study, it is revealed that the surface PVP forms cross-linked structures during the synthesis of the nanoparticles.
We theoretically show that the giant magneto-optical Kerr effects are induced by the electronic structure of half-metallic ferromagnetism in the perovskite BiNiO 3 with the orthorhombic structure by first-principles calculation. A Kerr rotation is up to 1.28° at 1.87 eV, which is comparative to the recognized maximum…
The grafted copolymer of natural rubber (NR) and maleic anhydride (MA) was synthesized in a solution state by using ultraviolet radiation. The NR-g-MA was characterized using infrared (IR) technique. The prepared NR-g-MA was added to a 50/50 blend of NR and acrylonitrile-butadiene copolymer (NBR) as a compatibilizer.…
Crystalline interfacial water layers have been observed at room temperature on both hydrophobic and hydrophilic surfaces − in air and subaquatically. Their implication in biology (and evolution) was postulated in a visionary paper in 1971 by Szent Györgyi. Today, they are believed to play a fundamental role in protein…
Commercial medium density fiberboard (MDF) was produced using rubberwood and oil palm empty fruit bunch (OPEFB) based on oven dried weight. Relative humidities of 65%, 93% with fixed temperature at 20°C, and normal condition was used for storage of the boards. The effects of storage time and relative humidity of MDF w…
The capacity degradation mechanism of the Ti−V-based hydrogen storage electrode alloys was systematically investigated from the viewpoint of intrinsic/extrinsic degradation for the first time. The oxidation/corrosion of the active components and the appearance of the irreversible hydrogen were found to be the two domi…
The influence of untreated and benzoylated oil palm empty fruit bunch (OPEFB) short fiber loading on the mechanical properties of the poly(vinyl chloride) (PVC) composite was studied. Benzoylated OPEFB was produced by mixing OPEFB with NaOH solution and agitating vigorously with benzoyl chloride. The PVC resin, variou…
Generation and assembly of gold nanostructures were investigated in the organized molecular films of a series of gemini amphiphiles. The chloroauric acid, dissolved in the aqueous subphase, was incorporated into the monolayers of the gemini amphiphiles containing ethyleneamine spacers through an interfacial assembly.…
The magnetic properties of monomeric bis(indenyl)chromium(II) complexes are sensitive to the relative orientation of the ligands (staggered, eclipsed, or gauche), regardless of whether such a conformation is imposed by sterically bulky substituents or is a consequence of crystal-packing forces. The staggered monomethy…
Singlet oxygen, 1 O 2 (a 1 Δ g ), is efficiently deactivated by single-walled carbon nanotubes (SWNTs) having diameters in the range d ≈ 1 − 1.6 nm. This is evidenced by quenching of the near-infrared emission of photosensitized 1 O 2 in water−surfactant dispersions of SWNTs. The observed quenching rate is close to th…
Molecular beam techniques are used to grow water films on Pt(111) with various incident angles and collision energies from 5 to 205 kJ/mol. The effect of the incident angle and collision energy on the porosity and surface area of the vapor-deposited water films was studied using nitrogen physisorption and infrared spe…
The deposition−precipitation (DP) method was used for the preparation of Ni/SiMCM-41 and Ni/AlMCM-41 catalysts with different DP times (1−4 h), and the catalysts were characterized by BET, XRD, TPR, FTIR spectroscopy, and TEM. On both types of catalysts, the Ni(II) phases formed are a mixture of 1:1 nickel phyllosilic…
Photoluminescence excitation spectra of dehydroxylated MgO powders are assigned from a combined theoretical and experimental approach. Experimentally, a set of five species is identified, among which are two new species, by recording the spectra with enhanced resolution and at 77 K so as to minimize energy transfer al…
A facile synthesis method for producing silica hollow spheres from nano- to microsize level is realized by adjusting the hydrolysis and condensation kinetics of silane precursors in a mild buffer solution (NaH 2 PO 4 −Na 2 HPO 4, pH ≈ 7.0) in the presence of F127 (EO 106 PO 70 EO 106 ) surfactant. Characterization usi…
Microcrystalline cellulose from two different locally available lignocellulosic materials, namely bagasse and rice straw has been prepared by simple process of hydrolysis. The different characteristics of prepared microcrystalline cellulose were determined and are found to be comparable with the characteristics of com…
Virtual screening of small molecules against a protein target often identifies the correct pose, but the ranking in terms of binding energy remains a difficult problem, resulting in unacceptable numbers of false positives and negatives. To investigate this problem, the performance of three docking programs, FRED, QXP/…
Block copolymers can adopt a wide range of morphologies in dilute aqueous solution. There is a significant amount of interest in the use of block copolymer vesicles for a number of applications. We show that a series of oligo(valine) and oligo(phenylalanine) peptides coupled to a methacrylic group can be prepared by c…