XPS and structural studies of high quality graphene oxide and …
2019年8月1日 · High quality graphene oxide (GO) and reduced graphene oxide (rGO) have been synthesized by chemical oxidation of graphite flakes via three modified Hummers methods using a mixture of sulfuric acid (H 2 SO 4), phosphoric acid (H 3 PO 4) and nitric acid (HNO 3) as intercalating agents and potassium permanganate (KMnO 4) and hydrogen peroxide (H 2 ...
Surface Analysis of Graphene and Graphite | IntechOpen
2022年10月18日 · XPS and ToF-SIMS are two main surface analysis techniques that have been used extensively and successfully to study the composition, structure, cleanliness, defects, and reactions of graphene and graphite surfaces. XPS is widely used to yield quantitative elemental and chemical state information of graphene and graphite surfaces.
X-ray photoelectron spectroscopy of reduced graphene oxide …
2015年9月1日 · X-ray photoelectron spectroscopy (XPS) measurements of graphite oxide (GO) and reduced graphene oxide (rGO) were performed with a Kratos Axis Ultra electron spectrometer using monochromatic Al Kα source (1486.6 eV) operated at 225 W (15 kV, 15 mA).
Graphene oxide and reduced graphene oxide studied by the …
2014年8月1日 · The graphene oxide, prepared using a “wet” chemical method from the graphite, and the hydrazine reduced graphene oxide were synthesised and chemically and structurally investigated using surface sensitive electron spectroscopy methods, like XPS and reflection electron energy loss spectroscopy (REELS), where the information depth depending ...
XPS spectra of graphene oxide and graphene. - ResearchGate
XPS spectra of graphene oxide and graphene. Graphene has attracted increasing attention because of its interesting properties. In this study, graphene was prepared from graphite by a...
Analysis of heat-treated graphite oxide by X-ray photoelectron ...
2013年8月14日 · X-ray photoelectron spectroscopy (XPS) is among the most powerful methods to determine the surface chemical properties of carbon materials. Because heat-treated graphite oxide includes various defects, analyses of the structure by XPS help us understand the structures of various carbon materials.
A simple, fast and general protocol for quantitative analysis of X-ray photoelectron spectroscopy (XPS) data provides accurate estimations of chemical species in graphene and related materials (GRMs).
C1s XPS spectra of graphite, GO and RGOs. - ResearchGate
Graphene oxide (GO) nanocomposites were prepared at 1.0% weight fraction of GO to reinforce polystyrene (PS) using solution blending approach. The morphology of the resulting nanocomposites was...
REELS is a fast method for identifying graphene. XPS distinguishes between the graphene and adventitious carbon layers and provides their accurate thicknesses calculated using the PHI StrataPHI algorithm. GCIB is efficient at cleaning adventitious carbon from the surface of 2D materials without inducing damage to the materials themselves ...
Understanding Graphene and its Properties Through XPS - AZoM.com
2017年9月27日 · XPS: The Ideal Technique for Analyzing Graphene’s Surface X-ray photoelectron spectroscopy (XPS) is an ideal technique for characterizing a material’s surface chemistry with extreme selectivity. It can also identify chemical states on a surface, as well as measure the elemental composition, empirical formula, and electronic state of the ...