Co3O4 nanoparticle-decorated hierarchical flower-like α-Fe2O3 microspheres: Synthesis and ethanol sensing properties

Co3O4 nanoparticle-decorated hierarchical flower-like α-Fe2O3 microspheres were prepared via a facile two-step method and subsequent annealing. The structure, morphology and surface characteristics of the as-prepared products were analyzed by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), transmission electron microscope (TEM) and Brunauer-Emmett-Teller (BET). Considering the potential...