Engineering the surface atomic structure of FeVO4nanocrystals for use as highly active and stable electrocatalysts for oxygen evolution

FeVO₄nanobelts bounded by {010} facets exhibit much higher OER activities and lower overpotential than nanosheets enclosed by {010} facets, which were mainly attributed to the favorable atomic arrangements of {010} facets with Fe–V dual-active sites and an open surface structure.