Scrolled sheet precursor route to niobium and tantalum oxide nanotubes

Yoji Kobayashi; Hideo Hata; Magda Salama; Thomas E. Mallouk

doi:10.1021/nl0708260

Scrolled sheet precursor route to niobium and tantalum oxide nanotubes

Yoji Kobayashi, Hideo Hata, Magda Salama, Thomas E. Mallouk

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110 Scopus citations

Abstract

The nanoscroll-to-nanotube thermal transformation was studied for H ₄Nb ₆O ₁₇·4.4H ₂O scrolls, prepared by exfoliation of K ₄Nb ₆O ₁₇. Thermal dehydration of the scrolls produces Nb ₂O ₅ nanotubes at 400-450°C. The nontopochemical transformation results in polycrystalline nanotubes; however, significant texturing with respect to the tube axis is observed. Substituting Ta for Nb in the precursor compound led to a lower yield of scrolls, most likely because there is less built-in lattice strain to drive scrolling of the unilamellar colloidal sheets.

Original language	English (US)
Pages (from-to)	2142-2145
Number of pages	4
Journal	Nano letters
Volume	7
Issue number	7
DOIs	https://doi.org/10.1021/nl0708260
State	Published - Jul 1 2007

All Science Journal Classification (ASJC) codes

Bioengineering
Chemistry(all)
Materials Science(all)
Condensed Matter Physics
Mechanical Engineering

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title = "Scrolled sheet precursor route to niobium and tantalum oxide nanotubes",

abstract = "The nanoscroll-to-nanotube thermal transformation was studied for H 4Nb 6O 17·4.4H 2O scrolls, prepared by exfoliation of K 4Nb 6O 17. Thermal dehydration of the scrolls produces Nb 2O 5 nanotubes at 400-450°C. The nontopochemical transformation results in polycrystalline nanotubes; however, significant texturing with respect to the tube axis is observed. Substituting Ta for Nb in the precursor compound led to a lower yield of scrolls, most likely because there is less built-in lattice strain to drive scrolling of the unilamellar colloidal sheets.",

author = "Yoji Kobayashi and Hideo Hata and Magda Salama and Mallouk, {Thomas E.}",

year = "2007",

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T1 - Scrolled sheet precursor route to niobium and tantalum oxide nanotubes

AU - Kobayashi, Yoji

AU - Hata, Hideo

AU - Salama, Magda

AU - Mallouk, Thomas E.

PY - 2007/7/1

Y1 - 2007/7/1

N2 - The nanoscroll-to-nanotube thermal transformation was studied for H 4Nb 6O 17·4.4H 2O scrolls, prepared by exfoliation of K 4Nb 6O 17. Thermal dehydration of the scrolls produces Nb 2O 5 nanotubes at 400-450°C. The nontopochemical transformation results in polycrystalline nanotubes; however, significant texturing with respect to the tube axis is observed. Substituting Ta for Nb in the precursor compound led to a lower yield of scrolls, most likely because there is less built-in lattice strain to drive scrolling of the unilamellar colloidal sheets.

AB - The nanoscroll-to-nanotube thermal transformation was studied for H 4Nb 6O 17·4.4H 2O scrolls, prepared by exfoliation of K 4Nb 6O 17. Thermal dehydration of the scrolls produces Nb 2O 5 nanotubes at 400-450°C. The nontopochemical transformation results in polycrystalline nanotubes; however, significant texturing with respect to the tube axis is observed. Substituting Ta for Nb in the precursor compound led to a lower yield of scrolls, most likely because there is less built-in lattice strain to drive scrolling of the unilamellar colloidal sheets.

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Scrolled sheet precursor route to niobium and tantalum oxide nanotubes

Abstract

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