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Synthesis and Characterization of Titanate Nanotube for Hydrogen Storage Using Hydrothermal Method with Various Alkaline Treatment

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Titanate nanotubes and nanofibers were synthesized by hydrothermal method using various alkaline solutions (NaOH and KOH) in order to study the effect of synthesis condition for hydrogen storage. The microstructures of titanate nanotube and nanofibers were characterized by XRD, TEM, FE-SEM. It was found that interlayer spacing of titanate nanotubes and nanofibers depended on the alkaline solution, because some of the Ti—O—Ti bonds were broken and layered titanate nanosheet of Ti—O—A (Na+ and K+) bonds were formed. The sorption of hydrogen of the titanate nanotubes and nanofibers were studied by the conventional volumetric pressure-composition isothermal method at RT, 30 atm. The relationships between interlayer spacing, ionic radius of alkaline solution and hydrogen capacity have been discussed.
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Keywords: ALKALINE TREATMENT; HYDROGEN ABSORPTION; HYDROTHERMAL

Document Type: Research Article

Publication date: 2008-10-01

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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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