A novel 3D hierarchical nanocomposite of vertically aligned porous FeP nano-wires on reduced graphene oxide is prepared as a demonstration of constructing an efficient hydrogen evolution catalyst. Extension of this nanostructuring strategy to other functional nanocomposites by combining different dimensional nanomaterials is attractive.
Keywords: hierarchical nanocomposites; hydrogen evolution reaction; porous FeP nanowire arrays; pseudomorphic transformation.