Temperature Programmed Desorption (TPD) spectroscopy was used to determine the binding energies of polycyclic aromatic hydrocarbons CnHm (22 ≤ n ≤ 60) with highly oriented pyrolytic graphite. These energies were then used to estimate the dispersive graphite interlayer cohesion by means of a refined extrapolation method proposed by Björk et al. This yields a cohesion energy of 44.0 ± 3.8 meV per carbon atom. We discuss some limits of the TPD-based approach and contrast our values with previous determinations of the interlayer cohesion energy of graphite.
A TPD-based determination of the graphite interlayer cohesion energy
Jürgen Weippert, Jakob Hauns, Julian Bachmann, Artur Böttcher, Xuelin Yao, Bo Yang, Akimitsu Narita, Klaus Müllen, Manfred M. Kappes; A TPD-based determination of the graphite interlayer cohesion energy. J. Chem. Phys. 21 November 2018; 149 (19): 194701. https://doi.org/10.1063/1.5052728
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