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Optimized atomic geometry of porous graphene large dark gray (brown) balls, C and small light gray (pink) balls, H. The unit cell (separated by dashed lines) is also shown along with the adsorption sites considered.
(a) Calculated metal binding energies (solid bars) on porous graphene together with calculated metal cohesive energies, as denoted by solid (blue) squares. Our calculated cohesive energies of metals are in good agreement with experiment (Ref. 31) (b) The metal binding energies on porous graphene are plotted with respect to metal-porous graphene distance .
(a) Calculated adsorption energy on metal-porous graphene complexes. The abscissa denotes the order of attached . The inset shows the average adsorption energy of isolated neutral metal atom. (b) The average adsorption energy with respect to metal- distance .
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