An indium-based microporous metal–organic framework with unique three-way rod-shaped secondary building units for efficient methane and hydrogen storage

Abstract

A novel microporous indium-based MOF material with unique 3-way rod-shaped secondary building units (SBUs), UTSA-22, was reported and exhibited high methane (CH₄) and hydrogen (H₂) storage. At 298 K and 65 bar, the total CH₄ volumetric uptake of UTSA-22 is 174 cm³(STP) cm⁻³. Moreover, UTSA-22 shows a high CH₄ working capacity of 146 cm³(STP) cm⁻³ in a pressure range of 5–65 bar at 298 K. In addition, UTSA-22 shows a high H₂ gravimetric storage capacity (1.2 wt%) at 298 K and 100 bar.