“…Owing to MOFs' tunable crystalline network structure, MOFs have been extensively used as adsorbents via the guest-to-host mechanism. Up to date, MOFs have been proven as one of the most promising adsorbents to store hydrogen and to capture CO 2 (Yoon et al, 2007). MOFs are also applied in other adsorption-related fields, including drug delivery (Horcajada et al, 2010), catalysis (Lee et al, 2009), and separations (Haque et al, 2010(Haque et al, , 2011(Haque et al, , 2014Khan et al, 2013;Van de Voorde et al, 2014).…”