DOUBLE-LAYER RELAXATION AT ROUGH ELECTRODES

We describe measurements of the complex admittance of the interface be tween electrodeposited fractal electrodes and electrolytic solutions o ver the frequency range 100 Hz to 100 kHz. Settling with a single size -dependent frequency collapses these data onto a universal curve. This scaling collapse provides quantitative support for the Halsey-Leibig theory for constant phase angle behavior and a technique for measuring the multifractal descriptors D-f and tau(2) for such electrodes. [D-f is the rough electrode's fractal dimension, and the multifractal expo nent tau(2) is the correlation dimension of the surface's harmonic mea sure.]