Dynamic breathing of co2 by hydrotalcite

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

Research output: Contribution to journalArticle

33 Citations (Scopus)

Abstract

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 CO2 under ambient conditions. The use of 13C-labeling enabled monitoring by IR spectroscopy of the dynamic exchange between initially intercalated 13C-labeled carbonate anions and carbonate anions derived from atmospheric CO2. 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.

Original languageEnglish
Pages (from-to)18040-18043
Number of pages4
JournalJournal of the American Chemical Society
Volume135
Issue number48
DOIs
Publication statusPublished - Dec 4 2013

Fingerprint

hydrotalcite
Carbonates
Carbon Cycle
Respiration
Anions
Negative ions
Carbon
Ion exchange
Calcium Carbonate
Weathering
Humidity
Clay minerals
Limestone
Atmosphere
Labeling
Minerals
Half-Life
Infrared spectroscopy
Spectrum Analysis
Atmospheric humidity

All Science Journal Classification (ASJC) codes

  • Catalysis
  • Chemistry(all)
  • Biochemistry
  • Colloid and Surface Chemistry

Cite this

Ishihara, S., Sahoo, P., Deguchi, K., Ohki, S., Tansho, M., Shimizu, T., ... Iyi, N. (2013). Dynamic breathing of co2 by hydrotalcite. Journal of the American Chemical Society, 135(48), 18040-18043. https://doi.org/10.1021/ja4099752

Dynamic breathing of co2 by hydrotalcite. / 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.

In: Journal of the American Chemical Society, Vol. 135, No. 48, 04.12.2013, p. 18040-18043.

Research output: Contribution to journalArticle

Ishihara, S, Sahoo, P, Deguchi, K, Ohki, S, Tansho, M, Shimizu, T, Labuta, J, Hill, JP, Ariga, K, Watanabe, K, Yamauchi, Y, Suehara, S & Iyi, N 2013, 'Dynamic breathing of co2 by hydrotalcite', Journal of the American Chemical Society, vol. 135, no. 48, pp. 18040-18043. https://doi.org/10.1021/ja4099752
Ishihara S, Sahoo P, Deguchi K, Ohki S, Tansho M, Shimizu T et al. Dynamic breathing of co2 by hydrotalcite. Journal of the American Chemical Society. 2013 Dec 4;135(48):18040-18043. https://doi.org/10.1021/ja4099752
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. / Dynamic breathing of co2 by hydrotalcite. In: Journal of the American Chemical Society. 2013 ; Vol. 135, No. 48. pp. 18040-18043.
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