Bacteria play an important role in the biogeochemical cycling of metals in the environment. Consequently, there is an interest to understand how the bacterial surfaces interact with metals in solution and how this affects the bacterial surface. In this work we have used a surface-sensitive analysis technique, cryogenic X-ray photoelectron spectroscopy (cryo-XPS), to monitor the surface of Bacil...

This work presents in-situ near and below sputter-threshold studies for GaSb(1 0 0) at energies 50, 100 and 200 eV and current densities near 50 lAcm . Variation of incident particle energy probes the energy deposition distribution and its relation to surface composition. In-situ analysis is conducted over irradiation modification using Ar singly-charged ions at normal incidence of the surface ...

Porous platinum thin films were prepared by thermal decomposition at temperatures from 25 to 675 °C of platinum oxide films deposited by a pulsed reactive sputtering technique. The samples’ chemistry and structure were investigated by x-ray diffraction (XRD), x-ray photoelectron spectroscopy (XPS), and x-ray absorption near edge structure (XANES), showing that the decomposition of the oxide beg...

The structures of semifluorinated alkanethiol self-assembled monolayers (SAMs) generated by the adsorption of CF3(CF2)9(CH2)nSH (F10HnSH, n ) 2, 6, 11, 17, 33) onto gold were investigated with atomic force microscopy (AFM), X-ray photoelectron spectroscopy (XPS), and surface plasmon resonance spectroscopy. Images obtained by AFM of the F10H2SH SAM showed a remarkably ordered 2D hexagonal lattic...

A dual stage process of depositing bamboo-like carbon nanotubes (BCNTs) by hot filament chemical vapor deposition (HFCVD) and coating Si using Radio frequency sputtering (RFS) technique. The films were characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), Raman spectroscopy, X-ray photoelectron spectroscopy (XPS), and electron field emission studies (EFE)....

The results of ZnS photodeposition from aqueous ZnS colloid solutions by KrF laser irradiation at 248 nm are given. In this process, the photoexcitation of ZnS colloid particles initiates complex redox processes, resulting in simultaneous ZnS thin film photodeposition and Zn particle precipitation in the bulk of the reaction cell. The zinc-based layers, which were deposited onto quartz substrat...

• Graphene Oxide, enhanced Hummer technique, EDAX, FT-IR, Thin film, XPS, Raman. oxide (GO) sheets possess a 2D filiform structure and were indigenously synthesized via the methodology. It is accepted that redox approach may be distinctive technique to fabricate GO films as sheet on an expanded scale. Instrumental characterizations showed ready during this study had bi-directional lamellar laye...

the activation of carbon monoxide by oxygen on mg(100) surface has been investigated by x-ray photoelectron spectroscopy (xps). carbon monoxide is only weakly adsorbed (dispersion-type forces) on a magnesium surface. the xps result has shown that the dissociation of carbon monoxide leading to the formation of a metastable surface carbonate species occurs through the participation of an oxygen s...

Abstract X-ray photoelectron spectroscopy (XPS) measures the binding energy of core-level electrons, which are well-localised to specific atomic sites in a molecular system, providing valuable information on local chemical environment. The technique relies measuring spectrum upon x-ray photoionisation, and resolution is often limited by bandwidth ionising pulse. This particularly problematic fo...