Unraveling the Role of MoO_x Clusters in Ternary Mo/Co₃NiO_x for Boosting Acidic Oxygen-Evolution Performance.

ABSTRACT: Developing efficient transition metal electrocatalysts with low cost for the acidic oxygen evolution reaction (OER) confronts an enormous challenge. This work reveals the promising potential of ternary Mo/Co₃NiO_x OER electrocatalysts, exhibiting good overpotentials of 249 mV@10 mA cm^-2 and 429 mV@50 mA cm^-2 and a small Tafel slope of 219 mV dec^-1 in OER tests (in a 0.5 m H₂SO₄ electrolyte), much better than those for the corresponding com-RuO₂ (330 mV@10 mA cm^-2 and 445 mV dec^-1). Furthermore, it exhibits good durability, lasting for ≈200 hours at a current density of 10 mA cm^-2, which can be attributed to the synergistic effect of the ternary heterostructure. The deacti

SUBMITTER: Zeng Q 

PROVIDER: S-EPMC12850222 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature