Hydrogen storage by physisorption on nanostructured graphite platelets

Thomas Heine, Lyuben Zhechkov, Gotthard Seifert

Research output: Contribution to journalArticle

150 Citations (Scopus)

Abstract

The physisorption energy of molecular hydrogen (H2) on flat carbon nanoparticles (graphitic platelets) and polycyclic aromatic hydrocarbons (PAHs) is determined to be attractive between 3.5 and 7.2 kJ mol-1, depending on the orientation of H2 and on the particle size. Entropy, estimated from experimental data, reduces the interaction energy by 3.4 kJ mol-1 at room temperature. Therefore, nanostructured graphitic platelets might be suitable for hydrogen storage. Computations have been carried out for PAHs from benzene to coronene using second order Møller-Plesset (MP2) theory at the basis set limit, and the results are extrapolated to graphene layers.

Original languageEnglish
Pages (from-to)980-984
Number of pages5
JournalPhysical Chemistry Chemical Physics
DOIs
Publication statusPublished - 2004 Jan 1

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All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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