Abstract
Abstract Iron-boron-silicon (Fe-B-Si) amorphous electrodes were studied using electrochemical impedance spectroscopy (EIS) to determine the alternating current (AC) impedance and the capacitance of four Fe-B-Si alloys in various acid solutions. The AC impedance and the capacitance of Fe-B-Si, Fe-B-Si with carbon (C), Fe-B-Si with cobalt (Co), and Fe-B-Si with chromium (Cr) were obtained in 25%, 50%, 75%, and 100% hydrochloric acid (HCl) at room temperature. The electrochemical parameters (i.e., impedance) varied depending on additions of C, Co, and Cr to the Fe-B-Si alloy; the acid concentration; and the nanoscopic surface roughness of the electrodes. Consequently, a correlation between the data obtained was established.
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