Increase in the world's population has increased demand for both eco-friendly energy sources and high-quality drinking water.  The desalination of seawater is considered as a viable option to produce large amounts of clean drinking water, however, current processes to achieve this large amounts consumption of energy and the porous materials used to filter seawater lack fine control over pore-size.  Ion-exchange membranes will be a promising key materials in the process of seawater desalination.  Proton-exchange membrane fuel cells have shown the potential to reduce the environmental impact in energy consumption, but current technology for the applications are limited by high costs and short lifetimes of membranes.  In our group, we seek to apply supramolecular chemistry to solve these issues.  Currently, we are investigating a series of hybrid polymeric porous membranes and films, alongside chemically interlocked inorganic polymers, which incorporate various redox-active building blocks, to produce the next generation of water desalination, fuel-cell membranes, and electronic film devices.