High-Temperature CO2 Sorption on Hydrotalcite Having a High Mg/Al Molar Ratio

Suji Kim, Sang Goo Jeon, Ki Bong Lee

Research output: Contribution to journalArticlepeer-review

72 Citations (Scopus)


Hydrotalcites having a Mg/Al molar ratio between 3 and 30 have been synthesized as promising high-temperature CO2 sorbents. The existence of NaNO3 in the hydrotalcite structure, which originates from excess magnesium nitrate in the precursor, markedly increases CO2 sorption uptake by hydrotalcite up to the record high value of 9.27 mol kg-1 at 240 °C and 1 atm CO2.

Original languageEnglish
Pages (from-to)5763-5767
Number of pages5
JournalACS Applied Materials and Interfaces
Issue number9
Publication statusPublished - 2016 Mar 9


  • CO sorption
  • Mg/Al ratio
  • high temperature
  • hydrotalcite
  • sorbent

ASJC Scopus subject areas

  • Materials Science(all)


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