Ionic transport across tailored nanoporous anodic alumina membranes

► Self-ordered nanoporous alumina membranes have well-defined pore size and porosity. ► Ionic and solute transport determined from membrane potential measurements. ► Significant influence of the membrane pore diameter on both ions and mass transport. ► Possibility of correlating diffusive and charge transport. ► Alumina membranes used for applications in microfluidic and electrochemical devices..