Oxygen-vacancy-engineered urchin-like CoMoO 4 epitaxially grown on partially oxidized Ti 3 C 2 MXene anchored on nickel nanocones for an efficient oxygen evolution reaction

A defect-rich Ti 3 C 2 /TiO 2 –CoMoO 4 nanocomposite on Ni nanocones enables highly active and stable OER performance through enhanced conductivity and abundant redox-active sites.