Document Type : Communication


Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, Iran


In this paper we experimentally worked on hydrogen storage on G-C3N4 in ambient temperature and 20 bar pressure. Also we determined thermodynamical properties of hydrogen adsorption. We synthesized pure G-C3N4 by Urea Precursor and it proved by XRD and FT-IR spectra. Results show that the pure G-C3N4 adsorption isotherm matched to Freundlich adsorption isotherm and ΔHad ,ΔGad and ΔSad obtained about (-27 kj/mol), (+21 kj/mol) and (-161 j/k) respectively. Result showed pure G-C3N4 have low hydrogen storage and could not consider as candidate for hydrogen storage materials and must equip with other materials like metal oxide, transitional metal and to promote capacity of G-C3N4  compounds for fuel cell application.