Defect‐Rich High‐Entropy Oxide Nanosheets for Efficient 5‐Hydroxymethylfurfural Electrooxidation

Defect-rich high-entropy oxides (HEOs) nanosheets with high surface area are synthesized through a plasma strategy under low-temperature. The unique structural and compositional advantages endow the HEOs nanosheets with superior electrocatalytic activity for 5-hydroxymethylfurfural oxidation.