Solvothermal synthesis of 3D leaf like a Fe2O3 and its gas sensing properties research
Abstract 3D leaf like Alpha iron oxide (a Fe2O3) nanostructure and other nanomorphologies were fabricated by adding different ethanol content in ethanol water mixed solvent under a simple solvothermal route. The structures and morphologies of nanostructures were characterized by X ray diffraction (XRD) field emission electron scanning microscopy (FESEM) and transmission electron microscopy (TEM) Their morphologies and gas sensing properties were mainly studied. The sensor synthesized in 80 vol% ethanol water as the solvent exhibited lower operating temperature (260 degC) higher response and shorter Response/recovery time (about 8 s and 9 s) The results indicated that 3D leaf like iron oxide (a Fe2O3) nanostructure was a potential candidate for fabricating effective acetone sensor.