Quantitative Evaluation of the Carbon Hybridization State by Near Edge X-ray Absorption Fine Structure Spectroscopy

Analytical Chemistry
Filippo MangoliniRobert W Carpick

Abstract

The characterization of the local bonding configuration of carbon in carbon-based materials is of paramount importance since the properties of such materials strongly depend on the distribution of carbon hybridization states, the local ordering, and the degree of hydrogenation. Carbon 1s near edge X-ray absorption fine structure (NEXAFS) spectroscopy is one of the most powerful techniques for gaining insights into the bonding configuration of near-surface carbon atoms. The common methodology for quantitatively evaluating the carbon hybridization state using C 1s NEXAFS measurements, which is based on the analysis of the sample of interest and of a highly ordered pyrolytic graphite (HOPG) reference sample, was reviewed and critically assessed, noting that inconsistencies are found in the literature in applying this method. A theoretical rationale for the specific experimental conditions to be used for the acquisition of HOPG reference spectra is presented together with the potential sources of uncertainty and errors in the correctly computed fraction of sp(2)-bonded carbon. This provides a specific method for analyzing the distribution of carbon hybridization state using NEXAFS spectroscopy. As an illustrative example, a hydroge...Continue Reading

References

Sep 15, 1996·Physical Review. B, Condensed Matter·J DíazF Comin
Aug 15, 1993·Physical Review. B, Condensed Matter·P J FallonJ Koskinen
Oct 16, 2004·Philosophical Transactions. Series A, Mathematical, Physical, and Engineering Sciences·Andrea Carlo Ferrari, John Robertson
Jul 21, 2006·The Journal of Physical Chemistry. B·Sarbajit BanerjeeStanislaus S Wong
Aug 31, 2006·Journal of the American Chemical Society·Sebastian OsswaldYury Gogotsi
Jul 23, 2008·Physical Review Letters·A R KonicekR W Carpick
Sep 4, 2008·Physical Review Letters·D PaciléA Zettl
Apr 30, 2009·Langmuir : the ACS Journal of Surfaces and Colloids·K E SohnE J Kramer
Apr 2, 2010·ACS Applied Materials & Interfaces·Daewon ParkChristopher K Ober
Jan 19, 2011·The Journal of Chemical Physics·B WattsH Ade
Jun 30, 2011·Nature Communications·Brian J SchultzSarbajit Banerjee

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