NITROGEN-DOPED PHOSPHORIC ACID FUEL CELL ELECTROLYTE

A fuel cell electrolyte includes a nitrogen-doped phosphate tetrahedral network having a plurality of linked tetrahedra, each of the plurality of the linked tetrahedra having a phosphorus cation center and four anions including oxygen or nitrogen, the network having at least one compound of formula (I): HPON where x is any number between 0.001 and 3.