Theory for cyclic staircase voltammetry of two step charge transfer mechanism at rough electrodes

摘要: We have developed theory for cyclic (staircase) voltammetry (CSCV) of a two step reversible charge transfer (EE) mechanism redox species with unequal diffusion coefficients at rough electrodes. The various surface microscopies provide details random morphology the electrode which is characterized through power spectrum in our theory. For finite fractal model, anomalous enhancement and scan rate dependence CSCV or CV response caused by dimension (DH), lower length scale fractality (l), topothesy (lτ). peak current corresponding to both steps enhanced an increase roughness (through DH lτ decrease l). onset offset regime controlled l, respectively. Results show that has potential enhance sensitivity as analytical technique. This due difference between current...