Showing papers in "Applied Surface Science in 2008"

TL;DR: In this paper, the peak positions and peak shape parameters of Fe 3p for Fe2+ and Fe3+ were derived from the XPS spectra of the standard samples of 2FeO·SiO2 and Fe2O3, respectively.

TL;DR: In this article, X-ray photoelectron spectroscopy (XPS) characterization indicates that the surface of the Cu nanoparticles oxidizes when they are exposed to air, which is indicative that the shell of nanoparticle is mainly Cu2O phase with CuO cover thin layer.

TL;DR: In this article, two series of materials were prepared from two commercial activated carbons, C and R, by heat treatment with gaseous ammonia at temperatures in the 200-800°C range, and their surface chemistry was studied through temperature-programmed desorption tests and X-ray photoelectron spectroscopy.

TL;DR: In this paper, the effect of different functionalization methodologies on dispersion of CNTs in aqueous media was evaluated, and the authors concluded that all methodologies used showed a percentage of adsorption of functional groups on the CNT.

TL;DR: The spinel CoFe(2)O(4) has been synthesized by combustion reaction technique and X-ray photo-electron spectroscopy shows that samples are near-stoichiometric, and that the specimen surface both in the powder and bulk sample is most typically represented by the formula (Co(0.4)Fe( 0.6), where cations in parentheses occupy tetrahedral sites and those within square brackets in octahedral sites.

TL;DR: In this article, the influence of nano-TiO 2 on the morphologies and the performances of polyethersulfone (PES) and TiO 2 composite membranes were investigated through the methods of SEM, XRD, TGA, contact angle goniometer, mechanical strength tests and filtration experiments.

TL;DR: In this paper, a superhydrophobic ZnO nanorod array on cotton substrate was fabricated via a wet chemical route and subsequent modification with a layer of n-dodecyltrimethoxysilane (DTMS).

TL;DR: In this article, the authors investigated the crack behavior of Ni-based composite coatings by laser cladding and showed that cracks originated from the interface of the composite coating and the substrate, and then passed through precipitated carbides due to the dissolution of WC particles.

TL;DR: In this article, the authors explored a room temperature, simple and low cost chemical route for the cobalt oxide film onto copper substrate from cobalt chloride (CoCl 2 ·6H 2 O) precursor and characterization for its structural and electrochemical properties for supercapacitor application.

TL;DR: In this article, the p-n junction photocatalyst p-ZnO/TiO 2 was prepared by ball milling of TiO 2 in H 2 O solution doped with p ZnO.

TL;DR: A chemical synthesis process for the fabrication of NiO is described in this paper, where a chemical route for preparation of nickel hydroxide thin films on the glass substrate from solution containing Ni (2+) ions and ammonia is reported.

TL;DR: In this paper, thin films of copper oxide were obtained through thermal oxidation of evaporated metallic copper (Cu) films on glass substrates, and X-ray diffraction (XRD) studies confirmed the cubic Cu phase of the as-deposited films.

TL;DR: In this paper, the authors performed laser ablation of a silver plate in polyvinylpyrrolidone (PVP) aqueous solutions to prepare silver nanoparticles.

TL;DR: The relationship between the photocatalytic activity and the surface species of Cu-TiO 2 was revealed via the measurement of surface photovoltage spectroscopy (SPS) as well as the degradation of the rhodamine B (RhB) as discussed by the authors.

TL;DR: In this paper, the Li−Si alloying process and reversible conversion reaction of SiO2 into Li2Si2O5 are proposed in the lithium electrochemical reaction of siO2.

TL;DR: In this paper, the results of un-doped (ZnO) and Aldoped ZnO (AZO) nanoparticles were also compared to investigate the structural characteristics and physical properties.

TL;DR: In this paper, the surface nature of CNTs was changed after the H2SO4, HNO3 and NaOCl oxidation, which makes CNT's that adsorb more BTEX.

TL;DR: In this paper, the effect of substituted uracils against the corrosion of neutral copper surface is studied by means of density functional approach B3LYP/6-31G calculations.

TL;DR: In this paper, Ni and nickel matrix composite deposits containing nano-SiC particles were produced under both direct and pulse current conditions from an additive-free nickel Watts' type bath, and the study of the textural perfection of the deposits revealed that the presence of nano-particles led to the worsening of the observed [1/0/0] preferred orientation.

TL;DR: In this paper, ultrasonic surface rolling processing (USRP) was applied on quenched and tempered 40Cr. The results showed that the USRP can both get nano-structured layers, with grain size of 3-7nm and reduce the surface roughness to 0.05μm.

TL;DR: In this article, the copper oxide (CuO) nanoneedles were synthesized by a simple hydrothermal method and X-ray diffraction (XRD) and selected area electron diffraction results showed that they have monoclinic structure with single crystalline phase.

TL;DR: In this article, a novel filtration device for the separation of small amount of water and hydrophobic solvents was proposed, and its separation efficiency was also quantitatively studied for the first time.

TL;DR: Sorbic acid (SA) was used to improve the performance of styrene-butadiene rubber (SBR)/halloysite nanotubes (HNTs) nanocomposites by direct blending.

TL;DR: In this paper, the surface and nano-tribological characteristics were studied by x-ray photoelectron spectroscopy (XPS), atomic force microscopy (AFM), and nano scratching experiments.

TL;DR: In this paper, multiwalled carbon nanotubes (MWCNTs) were homogeneously dispersed in pure acrylic emulsion by ultrasonication to prepare MWCNT/polyacrylate composites applied on building interior wall for electromagnetic interference (EMI) shielding applications.

TL;DR: In this paper, the effect of sol concentration on the crystallinity and surface morphology of ZnO thin films was investigated, and the results showed that with an increase in sol concentration, the value of full width at half maximum (FWHM) of (0,0,2) peak decreases while the strain first increases and then decreases.

TL;DR: In this paper, the surface of polyurea-formaldehyde (PUF) microcapsules was modified by using 3-aminopropyltriethoxy silane-coupling agent (KH550), and the interfacial interactions between PUF micro capsulesules and KH550 was also studied.

TL;DR: In this paper, the structural, optical and electrical properties of fluorine-doped ZnO nanostructure thin films were investigated and the dispersion parameters, Eo and Ed, were found to be 6.104 and 12.045 eV, respectively.

TL;DR: In this article, the as-deposited TiO2 films were annealed at 450°C for 1 1/h in vacuum atmosphere and they were characterized by XRD, SEM, ellipsometry and spectrophotometer.

TL;DR: In this paper, nanosized TiO 2 particles were prepared by sol-gel method and co-deposited with zinc from a sulphate bath at pH 4.5 using electrodeposition technique.