Fig. 3: The summary of calculated NMR shifts of O atoms connected to Pt (left) using the potential models (right) of SACs.

The light orange-marked area indicates the region where the new NMR signal corresponds to PtLC/CeO2. The models include adsorbed Pt1 species on the CeO2 surface (A-Pt1, A-Pt1O2 and A-Pt1(OH)2), Pt ions trapped in the steps of CeO2 surface (S-Pt1) and embedded Pt ions in the CeO2 surface (E-Pt1(4c), E-Pt1(4c’), and E-Pt1(6c)).