Journal
ISRAEL JOURNAL OF CHEMISTRY
Volume 48, Issue 3-4, Pages 133-142Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1560/IJC.48.3-4.133
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Numerical simulations of electrochemical systems were used to explore the influence of large-amplitude potential perturbations on the measured impedance response. The amplitude of the input potential perturbation used for impedance measurements, normally fixed at a value of 10 mV for all systems, should instead be adjusted for each experimental system. Guidelines are developed for selection of appropriate perturbation amplitudes. A characteristic transition frequency is defined that can be used to tailor a frequency-dependent input signal to optimize signal-to-noise levels while maintaining a linear response.
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