Triptycene-Based and Amine-Linked Nanoporous Networks for Efficient CO2 Capture and Separation

Abstract

A set of five nanoporous (pore size <100 nm) amine-functionalized and triptycene-based organic polymers (TBPALs) were prepared using commercially available phenols (such as quinol and phloroglucinol) and triptycene amines. C-N bonds were formed in the polymerization reactions without employing transitional metal catalysts such as Pd II or CuI. TBPALs demonstrated their ability to reversibly capture small gas molecules such as CO 2 , H 2 , CH 4 , and H 2. Highest uptake of CO 2 and H 2 was observed for TBPAL2 at 163.7 mg g −1 (273 K) and 16.2 mg g −1 (77 K), respectively.

Porous organic polymers for CO2capture, separation and conversion

“…Thus, a variety of triptycene POPs linked via amines 71,72 or phenazines 73 have been employed to endow the polymers with suitable functional active sites. Both amines and phenazines provide basic sites which help polarizing CO 2 , thus enabling for example the cycloaddition of epoxides to carbonates.…”

Silsesquioxane-based and triptycene-linked nanoporous polymers (STNPs) with a high surface area for CO2 uptake and efficient dye removal applications

“…38 The presence of micropores and the associated high surface areas are attributed to the three-dimensional and contorted structure of triptycene motifs present in the polymeric backbone. [38][39][40] Triptycene-based microporous organic polymers are also reported to demonstrate interesting applications in materials chemistry, such as small gas molecules (CO 2 , H 2 , CH 4 and N 2 ) capture and separation (CO 2 /CH 4 , CO 2 /N 2 and CH 4 /N 2 ), [41][42][43][44][45] toxic dye removal and iodine adsorption for environmental remediation. [46][47][48][49][50][51] Thus it is expected that the material incorporating triptycene and octa-functional OVS would yield a highly porous network.…”

Triptycene-Based and Schiff-Base-Linked Porous Networks: Efficient Gas Uptake, High CO2/N2 Selectivity, and Excellent Antiproliferative Activity

“…In recent literature related to POPs derived from triptycene-based monomers, it has been observed that such materials have reasonable surface areas with inherent hierarchical porosity for applications such as CO 2 capture and hydrogen storage. ,, This prompted us to investigate the Brunauer–Emmett–Teller (BET) surface areas and the pore size distributions of TBOSBL s. Thus, to determine the porous properties of TBOSBL s in detail, N 2 adsorption–desorption isotherms were recorded. The features of N 2 sorption isotherms (collected at 77 K, Figure A) of TBOSBL s suggest that they may be classified as type-II isotherms .…”