An In-Situ-Grown Cu-BTC Metal–Organic Framework / Graphene Oxide Hybrid Adsorbent for Selective Hydrogen Storage at Ambient Temperature

A Cu-BTC metal–organic framework hybrid with graphene oxide (GO) having ultralow GO content (1 wt %) was developed in situ and was explored as a medium for hydrogen storage at ambient temperature. The structural integration of both counterparts in the Cu-BTC/GO hybrid was attained through interaction of the Cu centers with the oxygen-bearing groups of GO by equatorial and axial coordination upon in-situ growth. As a result, Cu-BTC/GO showed enhanced surface area, pore volume, and microporosity, while its hydrogen storage capacity was increased by ∼60%, compared to pure Cu-BTC at 298 K and 1 bar, accompanied by low heat of adsorption (