Simultaneous unzipping and sulfonation of multi-walled carbon nanotubes to sulfonated graphene nanoribbons for nanocomposite membranes in polymer electrolyte fuel cells

Simultaneous unzipping and sulfonation of MWCNTs to form sGNR provides better interaction and structural compatibility with SPEEK leading to enhanced polymer electrolyte fuel cell performance for SPEEK/sGNR nanocomposite membranes.226