Fig. 9From: Highly Sensitive Ethanol Chemical Sensor Based on Novel Ag-Doped Mesoporous α–Fe2O3 Prepared by Modified Sol-Gel Processa Typical I-V characteristics of mesoporous 1wt.%Ag/Fe2O3-modified GCE toward various concentrations of ethanol (from 0.05 to 15 mM), measured in 0.1 M PBS solution (pH = 7) and b the corresponding calibration plotBack to article page