Abstract
Proton exchange membrane fuel cells are environmentally friendly, safe clean energy devices that have the potential to change the world. Proton exchange membrane fuel cells are a promising replacement for traditional power generation devices. Nanocomposite proton exchange membranes have high energy efficiency, which allows them to be considered as a new generation of proton exchange materials. This paper presents for the first time the synthesis and properties of nanocomposite proton exchange membranes based on poly-1-vinyl-1,2,4-triazole modified with polyhydroxysulfonated fullerene. Sulfofullerene intercalated into the polymer matrix improves all key membrane properties. The PEM nanocomposites exhibit a proton conductivity of up to 1.67 mS/cm and a uniform distribution of carbon nanoparticles of up to 10 nm in size. It was established that high dispersion and stabilization of nanoparticles are ensured by the acid–base interaction of sulfofullerene with the heterocycles of the polymer matrix. Stabilization of functionalized fullerenes by a matrix of semi-interpenetrating polymer networks is an innovative approach for creating nanocomposite proton-conducting systems. The obtained fullerene-containing PEMs demonstrate a high potential for wide practical application in various fuel cells.