Dual modulation of lattice strain and charge polarization induced by Co(OH)2/Ni(OH)2 interfaces for efficient oxygen evolution catalysis

Co(OH)₂/Ni(OH)₂ heterostructure nanomaterials were constructed by an in situ etching hydrothermal method and exhibited excellent oxygen evolution reaction activity due to the dual modulation of lattice strain and charge polarization induced by Co(OH)₂/Ni(OH)₂ interfaces.