Amine or Azo functionalized hypercrosslinked polymers for highly efficient CO2 capture and selective CO2 capture. (June 2021)

• Record Type: Journal Article
• Authors: Qiao, Yuanting; Zhan, Zhen; Yang, Yuwan; Liu, Manying; Huang, Qi; Tan, Bien; Ke, Xuebin; Wu, Chunfei
• Is Part Of: Materials today communications. Volume 27(2021)
• Publication Date: 2021-06
• Subjects: Azo azobenzene -- HCPs hypercrosslinked polymers; Hypercrosslinked polymers (HCPs) -- Amine -- Azobenzene -- CO2 adsorption -- CO2/N2 selectivity; Materials science -- Periodicals; 620.11
• DOI: 10.1016/j.mtcomm.2021.102338
• Languages: English
• ISSNs: 2352-4928

Abstract

Graphical abstract: Abstract: Hypercrosslinked polymers (HCPs) are very promising for large-scale applications due to their easy preparation, high thermal stability, and good capability of CO2 capture. Currently, many amine-functionalized porous materials are prepared through two steps. In this paper, the amine-functionalized HCPs was obtained with a one-step method and it showed a high CO2 adsorption up to 4.24 mmol/g at 273.15 K. In addition, since the azo-functionalized porous materials have many potential applications like the photoresponsive 'smart' materials, azobenzene is an attracting functional group for the development of porous materials. Herein, the azo-functionalized HCPs is firstly reported, and it is used as CO2 adsorbents (3.02 mmol/g at 273.15 K) performing good CO2 /N2 selectivity (34.52 at 298.15 K).