A controllable synthetic route to Cu, Cu2O, and CuO nanotubes and nanorodsElectronic supplementary information (ESI) available: EDS patterns of nanotubes and SEM images of nanorods. See http://www.rsc.org/suppdata/cc/b3/b304505f/

Reducing Cu(OH)4(2-) with hydrazine hydrate and glucose in the presence of a structure-directing surfactant at room temperature gave Cu and Cu2O nanotubes/nanorods, respectively, whereas facile hydrothermal treatment of Cu(OH)4(2-) precursor resulted in CuO nanotubes/nanorods.