A scrolled sheet precursor route to niobium oxide nanotubes

Yoji Kobayashi, Hideo Hata, Thomas E. Mallouk

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations


Potassium hexaniobate (K4Nb6O17) is one of the few relatively well-studied oxides which, upon exfoliation, rolls up into scrolls almost quantitatively with monodisperse length (∼300 nm) and diameter (30 nm). The tubes have high surface area (250-300 m2/g) and a wall thickness of 2-3 nm. These H4Nb6O17 scrolls were converted to Nb2O5 via a thermal dehydration process, yielding high surface area (150-200 m2/g) Nb 2O5 nanotubes. Despite extensive atomic rearrangement during dehydration at 400-450°C, little sintering is occurs, and so the tubular morphology is retained. Attempts to conduct further reactions to obtain LiNbO3 and KNbO3 nanotubes from reaction with molten alkali salts failed to yield the intended nanotubular oxides.

Original languageEnglish (US)
Title of host publicationSolid-State Chemistry of Inorganic Materials VI
PublisherMaterials Research Society
Number of pages6
ISBN (Print)9781604234336
StatePublished - 2006
Event2006 MRS Fall Meeting - Boston, MA, United States
Duration: Nov 27 2006Dec 1 2006

Publication series

NameMaterials Research Society Symposium Proceedings
ISSN (Print)0272-9172


Other2006 MRS Fall Meeting
Country/TerritoryUnited States
CityBoston, MA

All Science Journal Classification (ASJC) codes

  • General Materials Science
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering


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