Research Article

DFT Study of Cs/Sr/Ag Adsorption on Defective Matrix Graphite

Table 1

Adsorption energies (Eads) for perfect and defective matrix graphite (unit: eV).

StructuresCsSrAg
EadsZEadsZEadsZ

Perfect matrix graphite−1.882.59−1.462.27−0.272.87
“Bridge” interstitial defect−2.502.32−2.331.82−0.392.22
“Spiro” interstitial defect−2.252.21−2.131.83−0.402.48
Single vacancy defect−2.832.52−3.372.01−2.371.68

Z: the vertical distance between metal atoms and matrix graphite surface; unit is Å.