Sulfonation of Graphene Oxide for Fuel Cells Electrode and Membrane Applications

Graphene oxide (GO) and reduced graphene oxide (rGO) have been widely used for high capacity energy conversion and storage in fuel cells and lithium ion batteries, respectively. Particularly, for proton exchange membrane fuel cells (PEMFC) applications the incorporation of sulfonic acid functional groups (-SO3H) into GO/rGO structure has emerged as a powerful strategy to produce promising new support of noble catalysts and ionomer materials, due...