A new MOF-505 analog exhibiting high acetylene storage

Abstract

A new microporous metal-organic framework Cu(2)(EBTC)(H(2)O)(2) x xG (EBTC = 1,1'-ethynebenzene-3,3',5,5'-tetracarboxylate; G = guest molecule) was rationally designed with a NbO net, exhibiting significantly high acetylene storage of 252 and 160 cm(3) g(-1) at 273 and 295 K under 1 bar, respectively.

New Microporous Materials for Acetylene Storage and C2H2/CO2 Separation: Insights from Molecular Simulations

“…[7] Most studies in the field of gas storage and separation in MOFs have focused on gases related to energy applications, such as storage of hydrogen [2,[8][9][10] or methane [11][12][13] and purification of these gases by adsorption separation, [14][15][16][17][18] or to environmental problems, for example, carbon dioxide storage. [19][20][21][22] Recently, a few studies have assessed the storage capacity of MOFs for acetylene, C 2 H 2 , [23][24][25][26][27][28][29][30] which is technologically important due to the low compression limit of acetylene at room temperature (pure C 2 H 2 will explode at pressures above 2 bar). Owing to the similar fluid properties of acetylene and CO 2 , an efficient separation of C 2 H 2 /CO 2 mixtures is another technologically interesting issue, and there have been some attempts to assess the potential of MOFs in this field.…”

Encapsulation of small gas molecules and rare gas atoms inside the octa acid cavitand

“…At the forefront among them is molecular hydrogen [6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23]. Natural hydrocarbons such as ethane, ethylene, and acetylene [24][25][26][27][28][29] are also important probable choices in this regard. These hydrocarbons have found importance in different other applications as well.…”

Topological Diversity, Adsorption and Fluorescence Properties of MOFs Based on a Tetracarboxylate Ligand

“…[8] Chen and co-workers used an acetylene-elongated version of biphenyl-3,3Ј,5,5Ј-tetracarboxylate to form a MOF-505 analogue with new adsorption properties. [9] Zhou et al reported two temperature-controlled supramolecular stereoisomers (having either lvt [10] or pts topology depending on the conformation of the ligand) based on copper-containing paddle-wheel units and the organic linker N,N,NЈ,NЈ-tetrakis(4-carboxyphenyl)-1,4-phenylenediamine (TCPPDA). [11] Quite recently an elongated version of TCPPDA, N,N,NЈ,NЈ-benzidinetetrabenzoic acid (H 4 BenzTB) (2) was found to form a doubly interpenetrated framework Mg(BenzTB)(H 2 O) 2 (SNU-25) with lvt topology.…”