Synthesis of Titanate Nanotube from Different Phases of TiO2 Powders and Its Hydrogen Absorption Capacity

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Abstract:

Titanate nanotubes were synthesized by hydrothermal method with different NaOH concentration using various TiO2 powders (P-25, rutile, anatase, and Ni doped TiO2) at 120 °C for 24 hrs. At 10 M NaOH, Ni doped TiO2 powders formed the titanate nanotubes which consisted of layered structure such as A2Ti2O5·H2O, A2Ti3O7, H2TiO·H2O (A = Na and/or H) with outer and inner diameter of ∼10 nm and 6 nm. Ni doped nanotubes absorbed a small amount of hydrogen at 6 and 10 atm, however, uptake of hydrogen was 1.2 wt% at 20 atm.

Keywords: HYDROTHERMAL METHOD; MECHANICAL ALLOYING; TITANATE NANOTUBES

Document Type: Research Article

DOI: http://dx.doi.org/10.1166/jnn.2009.C059

Publication date: February 1, 2009

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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