Figure 10: Fraction of the cyclic response of frequency change versus potential obtained at a rate of 5 mV s^{−1} using the following solutions: [(NH_{4})_{2}SO_{4}] 1 M (NH_{3} curve) and [Co^{2+}] 1 mM + [(NH_{4})_{2}SO_{4}] 1 M (NH_{3}−Co curve) adjusted at pH 9.3. 
