Nanocrystalline Todorokite-Like Manganese Oxide Produced by Bacterial Catalysis

Hack Sung Kim, Pablo A. Pastén, Jean François Gaillard, Peter C Stair

Research output: Contribution to journalArticle

51 Citations (Scopus)

Abstract

We describe the characterization of an unknown and difficult to identify but geochemically and environmentally significant MnOx structure produced by a freshwater bacterium, Leptothrix discophora SP-6, using combined transmission electron microscopy (TEM), extended X-ray absorption fine structure (EXAFS), and UV Raman spectroscopy. The large surface-to-volume ratio of the needle-shaped nanocrystalline MnO2 formed around the bacterial cells coupled to the porous, zeolite-like structure has the potential to catalyze reactions and oxidize and adsorb metals.

Original languageEnglish
Pages (from-to)14284-14285
Number of pages2
JournalJournal of the American Chemical Society
Volume125
Issue number47
DOIs
Publication statusPublished - Nov 26 2003

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Leptothrix
Zeolites
Manganese oxide
Raman Spectrum Analysis
X ray absorption
Fresh Water
Ultraviolet spectroscopy
Catalysis
Transmission Electron Microscopy
Needles
Raman spectroscopy
Bacteria
Metals
X-Rays
Transmission electron microscopy
arginyl-threonyl-prolyl-prolyl-prolyl-seryl-glycine
manganese oxide

ASJC Scopus subject areas

  • Chemistry(all)

Cite this

Nanocrystalline Todorokite-Like Manganese Oxide Produced by Bacterial Catalysis. / Kim, Hack Sung; Pastén, Pablo A.; Gaillard, Jean François; Stair, Peter C.

In: Journal of the American Chemical Society, Vol. 125, No. 47, 26.11.2003, p. 14284-14285.

Research output: Contribution to journalArticle

Kim, Hack Sung ; Pastén, Pablo A. ; Gaillard, Jean François ; Stair, Peter C. / Nanocrystalline Todorokite-Like Manganese Oxide Produced by Bacterial Catalysis. In: Journal of the American Chemical Society. 2003 ; Vol. 125, No. 47. pp. 14284-14285.
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