Local diffusion indicators: A new tool for analysis of electrochemical mass transport

The recently introduced diffusion indicator (Haonan et al, J. Electroanal. Chem., 2019, 855, 113602) is generalised to characterise local mass transport fluxes a non-uniformly accessible electrode probe both qualitatively and quantitatively the nature of different parts an surface at times following electrochemical perturbation. approach illustrated in respect truncated sphere on plane surface. relative contributions thin layer, linear convergent potential step chronoamperometry are evaluated. Comparison made with analogous measurements micro-disc electrode. results have implications for transients accompanying impact nanoparticles planar electrodes hanging mercury drop electrodes.