Hydrogen storage by physisorption on nanostructured graphite platelets

Literature Information

Publication Date 2004-02-04
DOI 10.1039/B316209E
Impact Factor 3.676
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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.

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Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics
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