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Dynamic breathing of co by hydrotalcite

Journal of the American Chemical Society, ISSN: 0002-7863, Vol: 135, Issue: 48, Page: 18040-18043
2013
  • 79
    Citations
  • 0
    Usage
  • 101
    Captures
  • 1
    Mentions
  • 3
    Social Media
Metric Options:   Counts1 Year3 Year

Metrics Details

  • Citations
    79
  • Captures
    101
  • Mentions
    1
    • References
      1
      • Wikipedia
        1
  • Social Media
    3
    • Shares, Likes & Comments
      3
      • Facebook
        3

Article Description

The carbon cycle of carbonate solids (e.g., limestone) involves weathering and metamorphic events, which usually occur over millions of years. Here we show that carbonate anion intercalated layered double hydroxide (LDH), a class of hydrotalcite, undergoes an ultrarapid carbon cycle with uptake of atmospheric CO under ambient conditions. The use of C-labeling enabled monitoring by IR spectroscopy of the dynamic exchange between initially intercalated C-labeled carbonate anions and carbonate anions derived from atmospheric CO. Exchange is promoted by conditions of low humidity with a half-life of exchange of ∼24 h. Since hydrotalcite-like clay minerals exist in Nature, our finding implies that the global carbon cycle involving exchange between lithosphere and atmosphere is much more dynamic than previously thought. © 2013 American Chemical Society.

Bibliographic Details

Ishihara, Shinsuke; Sahoo, Pathik; Deguchi, Kenzo; Ohki, Shinobu; Tansho, Masataka; Shimizu, Tadashi; Labuta, Jan; Hill, Jonathan P; Ariga, Katsuhiko; Watanabe, Ken; Yamauchi, Yusuke; Suehara, Shigeru; Iyi, Nobuo

American Chemical Society (ACS)

Chemical Engineering; Chemistry; Biochemistry, Genetics and Molecular Biology

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