Hierarchical Fe-doped NiOx nanotubes assembled from ultrathin nanosheets containing trivalent nickel for oxygen evolution reaction

The hierarchical Fe-doped NiOx nanotubes assembled from 10-at.-layer ultrathin nanosheets containing trivalent nickel has been prepared. The as-prepared hierarchical Fe-doped NiOx nanotubes exhibit remarkable catalytic activity for the oxygen evolution reaction (OER) in alkaline electrolytes.260