The origin of the low efficiency of carbon removal from the Nickel/Yttrium-Stabilized Zirconia triple-phase boundary by adsorbed water

It is found that the H at the Ni surface can diffuse easily to the interface to react with the formed CO at the interface and form a CHO species, once the CHO species formed, the process of CHO → CH + O is more favorable as compared with that of CHO → CO + H.462