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High-Temperature CO2 Sorption on Hydrotalcite Having a High Mg/Al Molar Ratio
- Authors
- Kim, Suji; Jeon, Sang Goo; Lee, Ki Bong
- Issue Date
- 9-3월-2016
- Publisher
- AMER CHEMICAL SOC
- Keywords
- hydrotalcite; sorbent; CO2 sorption; high temperature; Mg/Al ratio
- Citation
- ACS APPLIED MATERIALS & INTERFACES, v.8, no.9, pp.5763 - 5767
- Indexed
- SCIE
SCOPUS
- Journal Title
- ACS APPLIED MATERIALS & INTERFACES
- Volume
- 8
- Number
- 9
- Start Page
- 5763
- End Page
- 5767
- ISSN
- 1944-8244
- Abstract
- 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 degrees C and 1 atm CO2.
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