The correlation between crystal facets and electronic configurations of perovskite is closely related to the intrinsic activity for water splitting. Herein, we proposed a unique molten-salt method (MSM) manipulate properties LaCoO3 by fine-tuning its facet atomic doping. samples with oriented (110) (LCO (110)) (111) (111)) were motivated capping agent (Sr2+). Compared LCO plane, Sr-doped (LSCO ...