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Template-assisted synthesis of PbTiO3 nanotubes
Authors:Per Martin Rørvik  Kiyoharu Tadanaga  Masahiro Tatsumisago  Tor Grande  Mari-Ann Einarsrud
Affiliation:1. Department of Materials Science and Engineering, Norwegian University of Science and Technology, 7491 Trondheim, Norway;2. Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University, Sakai, Osaka 599-8531, Japan;1. UCD School of Agriculture and Food Science, University College Dublin, Belfield, Dublin 4, Ireland;2. Environmental Resource Studies, Trent University, Peterborough, Ontario K9J 7B8, Canada;1. Faculty of Chemistry, University of Warsaw, ul. Pasteura 1, 02 093 Warsaw, Poland;2. Institute of Electron Technology, Al. Lotników 32/46, 02 668 Warsaw, Poland;1. Department of Chemistry, North Carolina State University, Raleigh, North Carolina;1. Science and Technology on Electronic Test & Measurement Laboratory, North University of China, China;2. Key Laboratory of Instrumentation Science & Dynamic Measurement, Ministry of Education, North University of China, China
Abstract:Nanotubes of ferroelectric lead titanate (PbTiO3) have been made by a template-assisted method. An equimolar Pb–Ti sol was dropped onto porous alumina membranes and penetrated into the channels of the template. Single-phase PbTiO3 perovskite nanotubes were obtained by annealing at 700 °C for 6 h. The nanotubes had diameters of 200–400 nm with a wall thickness of approximately 20 nm. Excess PbO or annealing in a Pb-containing atmosphere was not necessary in order to achieve single-phase PbTiO3 nanotubes. The influence of the heating procedure and the sol concentration is discussed.
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