X-ray photoemission studies of diamond, graphite, and glassy …
1974年6月15日 · The high-resolution x-ray photoemission spectra (XPS) of the total valence bands of atomically clean diamond, graphite, and glassy carbon, obtained with monochromatized Al K α radiation, are reported and discussed.
XPS studies of graphite electrode materials for lithium ion …
2000年10月16日 · In this paper, we compare graphite powders and carbon fibres as model materials for X-ray photoemission spectroscopy (XPS) studies of the effects of surface pre-treatments. For carbon fibres, the surface carbon percentage was found to vary from 70–95% depending on the surface treatment, with corresponding changes in the relative proportion of ...
X-ray Photoelectron Spectroscopy (XPS) Reference Pages: Graphite
X-ray photoelectron spectroscopy (XPS or ESCA) curve fitting procedures, reference materials and useful notes are listed here to provide a starting point for the consistent interpretation of XPS spectra. These reference pages contain tips and techniques that are designed to help both the novice and advanced XPS user.
Comparison between the C 1s XPS spectra of graphite and those …
The x-ray photoemission spectra (XPS) of the C 1s core level in these films shown two components at 284.3±0.1 eV and 285.2±0.1 eV, which were identified with the sp2 and sp3 hybrids...
An XPS/UPS study of the surface/near-surface bonding in nuclear …
2020年4月1日 · This present study uses XPS and associated techniques, such as Auger parameter analysis and ultraviolet photoelectron spectroscopy (UPS), to identify the surface distribution of elements within nuclear graphite specimens and to study the carbon bonding, particularly with respect to the sp 2 /sp 3 character.
Analysis of heat-treated graphite oxide by X-ray photoelectron ...
2013年8月14日 · Combination use of peak shifts and FWHMs of XPS spectra, infrared spectroscopy, and density functional theory calculation provided more reliable assignments of defects including oxygen-containing functional groups of carbon materials than commonly used methods using only peak shifts of XPS spectra.
C1s XPS spectra of graphite, GO and RGOs. - ResearchGate
A brief XPS survey scan shows two peaks around 290 eV and 530 eV, ascribed to the C and O, respectively (Fig. 2b) [35, 36]. Similarly, the detailed C1s spectra of GO and rGO nanosheets...
XPS spectra of nitrogen-doped graphite surfaces showing …
In this work, we demonstrate the improved ORR performance and stability of Co and Fe oxide-decorated/N-doped reduced graphene oxide (CoOx-Fe3O4/N-rGO) prepared via a hydrothermal method at the low...
Highly Oriented Pyrolytic Graphite by XPS
1992年12月1日 · X-ray photoelectron spectroscopy (XPS) was used to characterize a highly oriented pyrolytic graphite (HOPG) sample. The HOPG was cleaved using scotch tape prior to introduction into an ultrahigh vacuum analytical chamber.
XPS photoemission in carbonaceous materials: A “defect” peak …
2004年1月1日 · The accurate determination of this part of the XPS C 1s spectra is especially important in any interpretation using numerical fit of photoemission experiments. The aim of this paper is to give some information about the graphitic and new defect line origins and to state their binding energies and shapes.