▎ 摘　　要

A hierarchical graphene material composed of micropore (similar to 0.8 nm), mesopore (similar to 4 nm), and macropore (>50 nm) and with a specific surface area up to 1305 m(2) g(-1) is fabricated for physisorption hydrogen storage at atmospheric air pressure, showing a capacity over 4.0 wt %, which is significantly higher than reported graphene materials and all other kinds of carbon materials.