Highly stable nanoporous sulfur bridged covalent organic polymers for carbon dioxide removal

Title
Highly stable nanoporous sulfur bridged covalent organic polymers for carbon dioxide removal
Authors
변지혜Hasmukh A. PatelFerdi KaradasJoonho ParkErhan DenizAli CanlierYousung JungMert AtilhanCafer T. Yavuz
Issue Date
2013-05
Publisher
Advanced functional materials
Citation
VOL 23, NO 18-2276
Abstract
Carbon dioxide capture and separation requires robust solids that can stand harsh environments where a hot mixture of gases is often found. Herein, the first and comprehensive syntheses of porous sulfur-bridged covalent organic polymers (COPs) and their application for carbon dioxide capture in warm conditions and a wide range of pressures (0200 bar) are reported. These COPs can store up to 3294 mg g1 of carbon dioxide at 318 K and 200 bar while being highly stable against heating up to 400 degrees C. The carbon dioxide capacity of the COPs is also not hindered upon boiling in water for at least one week. Physisorptive binding is prevalent with isosteric heat of adsorptions around 24 kJ mol1. M062X and RIMP2 calculations yield the same relative trend of binding energies, where, interestingly, the dimer of triazine and benzene play a cooperative role for a stronger binding of CO2 (19.2 kJ mol1) as compared to a separate binding with triazine (13.3 kJ mol1) or benzene (11.8 kJ mol1).
URI
http://pubs.kist.re.kr/handle/201004/70650
ISSN
1616-301X
Appears in Collections:
KIST Publication > Article
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