Pore size effects of nanoporous carbons with ultra-high surface area on high-pressure hydrogen storage

摘要: Abstract In this work, the morphologies and pore structures of a series corncob-derived activated carbons zeolite templated carbon with ultrahigh surface area were carefully investigated by SEM, HRTEM N2-sorption characterization technologies. The high-pressure hydrogen uptake performance was analyzed using standard Pressure-Composition-Temperature apparatus in order to study size effects on uptake. These as-obtained porous showed different characteristics distribution as well specific area. results indicate that most effective pores for adsorbing depended storage pressure. ultramicropores (0.65–0.85 nm) could be excess H2 at 1 bar, however, micropores (0.85–2 would play more important role higher pressure 77 K. At room temperature, capacity very weak. Both total volume roles than which clearly from For applications future, can available Element doping enhanced main research direction improving temperature.