A microporous metal–organic framework with naphthalene diimide groups for high methane storage

Abstract

We reported a microporous MOF FJU-101 with open naphthalene diimide functional groups for room temperature (RT) high methane storage. At RT and 65 bar, the total volumetric CH₄ storage capacity of 212 cm³ (STP) cm⁻³ of FJU-101a is significantly higher than those of the isoreticular MFM-130a and UTSA-40a. The enhanced methane uptake in FJU-101a is attributed to the polar carbonyl sites, which can generate strong electrostatic interactions with CH₄ molecules.