H2 Storage in Microporous Carbons from PEEK Precursors

Large surface area (524−3275 m 2 /g) microporous carbons (MPCs) derived from poly(etheretherketone), or PEEK, have been synthesized and categorized for their roles as H 2 storage materials. It was found that, because of their very large surface areas (≥3000 m 2 /g), large cumulative pore volumes (∼1.7 cm 3 /g), and small pore sizes (predominantly ≤3 nm), these materials displayed impressive H 2 sorption properties, including excess gravimetric and volumetric H 2 storage capacities of approximately 5 wt % and 35 g/L, respectively, at 77 K and 20 bar.