4.6 Article

Amine or Azo functionalized hypercrosslinked polymers for highly efficient CO2 capture and selective CO2 capture

期刊

MATERIALS TODAY COMMUNICATIONS
卷 27, 期 -, 页码 -

出版社

ELSEVIER
DOI: 10.1016/j.mtcomm.2021.102338

关键词

Hypercrosslinked polymers (HCPs); Amine; Azobenzene; CO2 adsorption; CO2/N-2 selectivity

资金

  1. China Scholarship Council [201706880031]
  2. European Union [823745]

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This paper investigated the synthesis of amine-functionalized HCPs and azo-functionalized HCPs using one-step method, which exhibit high CO2 adsorption capacity and selectivity.
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, azo-benzene 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/N-2 selectivity (34.52 at 298.15 K).

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