Fig. 2

Six typical configurations of [PtCl6]2- on different supports and corresponding calculated free energies. 1 Graphene sheet. 2 Graphitic mono-layer with a micropore of 0.6 nm. 3 Graphitic mono-layer with the micropore decorated by two py-N atoms. 4 Graphitic bi-layer with a micropore of 0.6 nm. 5 Graphitic bi-layer with the micropore decorated by one py-N atom. 6 Graphitic bi-layer with the micropore decorated by two py-N atoms