Percolated porous electrodes made of commercial sintered nickel were studied for different configurations (percolated sheet; radially percolated tube wall; porous tube with simultaneous axial and percolated radial flows). The materials were characterized using permeametry experiments, and the volumetric mass transfer coefficients were electrochemically measured. Empirical correlations of the results were obtained for the case of one-dimensional electrodes (axial and radial electrodes); they were compared with other correlations from the literature. The results obtained for the case of combined axial and aspiration flows are discussed.