Shell gradually reduced carbon reduction consistent with the ligand, leading to cc bond reduction, the metal oxide is exposed, causing conductivity is decreased.
The decreasing carbon of the shell layer is consistent with the reduction of the ligand, resulting in a reduction in c-c bonds, exposure of metal oxides, and a decrease in conductivity.
The decrease of carbon in the shell is consistent with the decrease of ligands, which leads to the decrease of C-C bonds, the exposure of metal oxides and the decrease of conductivity.<br>