Clover leaf-shaped Al 2O 3 extrudate as a support for high-capacity and cost-effective CO 2 sorbent

Xinlong Yan, Ying Zhang, Ke Qiao, Xiang Li, Zhanquan Zhang, Zifeng Yan, Sridhar Komarneni

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15 Scopus citations


Amine-functionalized clover leaf-shaped Al 2O 3 extrudates (CA) were prepared for use as CO 2 sorbent. The as-synthesized materials were characterized by N 2 adsorption, XRD, SEM and elemental analysis followed by testing for CO 2 capture using simulated flue gas containing 15.1% CO 2. The results showed that a significant enhancement in CO 2 uptake was achieved with the introduction of amines into CA materials. A remarkably high volume-based capacity of 70.1mg/mL of sorbent of this hybrid material suggests that it can be potentially used for CO 2 capture from flue gases and other stationary sources, especially those with low CO 2 concentration. The novel adsorbent reported here performed well during prolonged cyclic operations of adsorption-desorption of CO 2.

Original languageEnglish (US)
Pages (from-to)1505-1508
Number of pages4
JournalJournal of Hazardous Materials
Issue number3
StatePublished - Sep 15 2011

All Science Journal Classification (ASJC) codes

  • Environmental Engineering
  • Environmental Chemistry
  • Waste Management and Disposal
  • Pollution
  • Health, Toxicology and Mutagenesis

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