Highly stable amine-modified mesoporous silica materials for efficient CO2 capture

Shou Heng Liu, Chia Hua Wu, Huang Kuei Lee, Shang Bin Liu

Research output: Contribution to journalArticlepeer-review

81 Citations (Scopus)


A highly efficient and stable solid adsorbent invoking a direct incorporation of tetraethylenepentamine (TEPA) onto the as-synthesized mesocelullar silica foam (MSF) has been developed for CO2 capture. Unlike most amine-functionalized silicas, which typically exhibit CO2 adsorption capacities less than 2.0 mmol/g, such organic template occluded mesoporous silica-amine composites exhibited remarkably high CO2 uptake as high as 4.5 mmol/g at 348 K and 1 atm. Moreover, notable increases in CO2 adsorption capacities of the composite materials were observed when in the presence of humidity. Durability test performed by cyclic adsorption-desorption revealed that such adsorbents also possess excellent stability, even though a slight decrease in adsorption capacity over time was observed.

Original languageEnglish
Pages (from-to)210-217
Number of pages8
JournalTopics in Catalysis
Issue number3-4
Publication statusPublished - 2010 Mar

All Science Journal Classification (ASJC) codes

  • Catalysis
  • Chemistry(all)


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