Fig. 2

HAADF-STEM images of the 1wt.% Pt/CeO2 catalysts: a as-synthesized AT (CPA), b as-synthesized SEA (CPA), c activated AT (CPA), d activated SEA (CPA), e activated AT (TAPN), f activated SEA (TAPN)

HAADF-STEM images of the 1wt.% Pt/CeO2 catalysts: a as-synthesized AT (CPA), b as-synthesized SEA (CPA), c activated AT (CPA), d activated SEA (CPA), e activated AT (TAPN), f activated SEA (TAPN)