An Adjusted Model of Proton Conductivity in Nafion® Membranes

Abstract

This developed and evaluated an adjusted model for proton conductivity in Proton Exchange Membrane (PEM) electrolyzer systems due to the increasing demand for alternative energy sources and the significance of green hydrogen (GH2). We performed a logarithmic regression based on experimental data on conductivity and membrane water content to achieve this goal. The main results indicate that the adjusted model shows better agreement with the logarithmic behavior of conductivity when compared to the typical model proposed in 1991. Furthermore, the calculated ohmic overpotential from the adjusted model demonstrated higher accuracy. Therefore, the adjusted model provides a more precise tool for sizing and optimizing (GH2) production systems using PEM technology.