Room temperature synthesis of free-standing HKUST-1 membranes from copper hydroxide nanostrands for gas separation

Abstract

Large scale, robust, well intergrown free-standing HKUST-1 membranes were converted from copper hydroxide nanostrand free-standing films in 1,3,5-benzenetricarboxylic acid water-ethanol solution at room temperature, and explored for gas separation. The truncated crystals are controllable and favorable for the dense intergrowth.

Solvothermal and electrochemical synthetic method of HKUST-1 and its methane storage capacity

“…HKUST-1 is one of the MOFs material that are widely studied due to its structural stability and various potential applications, such as in catalysis [14], gas separation [18] and gas storage [19,20]. The specific advantage of HKUST-1 is having structural features such as an open metal coordination sites [3].…”

General incorporation of diverse components inside metal-organic framework thin films at room temperature

“…Similarly, Falcaro et al have applied functional nanoparticle-encapsulated a-hopeite as a nucleating agent to position and encapsulate the functional components in MOF-5 with core/shell structures 45,46 . However, most of the aforementioned methods require relatively high temperatures and long reaction times 27,34,[38][39][40][41][42][43][44][45][46] , and the obtained NP/MOF composite powders 27,34,[38][39][40][41][42][43][44] are not suitable for thin film devices 10,43,44 .…”

“…M etal-organic frameworks (MOFs) 1,2 , which are selfassembled from organic ligands and metal ions, are highly promising porous crystalline materials with the strong potential for gas separation [3][4][5][6][7][8][9][10][11][12][13][14] , chemical sensors [15][16][17][18] , catalysts [19][20][21][22] and optical devices 23 because of their large and accessible specific surface areas, uniform and tunable pore sizes, and diverse properties. However, to further enrich or expand the functionalization of MOFs, in an approach similar to zeolites [24][25][26] , new synergistic properties have been achieved by incorporating functional species into MOFs to form composite materials that cannot be obtained from the parent MOF counterparts 27 .…”

Mass transport through metal organic framework membranes

“…In recent years, a novel self-confined solid conversion method was developed to fabricate MOF membranes on porous substrates by us [105,[108][109][110][111][112][113][114]. The copper hydroxide nanostrands (CHNs) [105,[108][109][110][111], copper oxide nanosheets (CuO NSs) [112] and zinc hydroxide nanostrands (ZHNs) [113,114] were employed as metal sources in MOF membranes fabricating process, as shown in Fig.…”

“…The copper hydroxide nanostrands (CHNs) [105,[108][109][110][111], copper oxide nanosheets (CuO NSs) [112] and zinc hydroxide nanostrands (ZHNs) [113,114] were employed as metal sources in MOF membranes fabricating process, as shown in Fig. 4.…”