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Investigation of the super-long alumina nanowire array synthesized with a novel method
Authors:ZH Su  XC Li  FM Qu  HJ Zhou  L Liu  Q Zhou  L Zhang  H Wang  M Feng  YF Wang  XW Cao
Institution:1. College of Physics, Nankai University, 300071, Tianjin, PR China;2. College of Chemistry, Nankai University, 300071, Tianjin, PR China;1. Centre for Advanced Materials, Qatar University, P. O. Box 2713, Doha, Qatar;2. Centre of Polymer Systems, Tomas Bata University in Zlin, Trida T. Bati 5678, 760 01 Zlin, Czech Republic;1. Institute of Physics, Academia Sinica, Taipei, Taiwan 11529, People?s Republic of China;2. Argonne National Laboratory, Argonne, IL 60439, USA;3. University of Athens, 157 71 Athens, Greece;4. Institut de Fisica d?Altes Energies, ICREA, Universitat Autonoma de Barcelona, E-08193, Bellaterra (Barcelona), Spain;5. Baylor University, Waco, TX 76798, USA;6. Istituto Nazionale di Fisica Nucleare Bologna, Italy;7. University of Bologna, I-40127 Bologna, Italy;8. University of California, Davis, Davis, CA 95616, USA;9. University of California, Los Angeles, Los Angeles, CA 90024, USA;10. Instituto de Fisica de Cantabria, CSIC–University of Cantabria, 39005 Santander, Spain;11. Carnegie Mellon University, Pittsburgh, PA 15213, USA;12. Enrico Fermi Institute, University of Chicago, Chicago, IL 60637, USA;13. Comenius University, 842 48 Bratislava, Slovakia;14. Institute of Experimental Physics, 040 01 Kosice, Slovakia;15. Joint Institute for Nuclear Research, RU-141980 Dubna, Russia;p. Duke University, Durham, NC 27708, USA;q. Fermi National Accelerator Laboratory, Batavia, IL 60510, USA;r. University of Florida, Gainesville, FL 32611, USA;s. Laboratori Nazionali di Frascati, Istituto Nazionale di Fisica Nucleare, I-00044 Frascati, Italy;t. University of Geneva, CH-1211 Geneva 4, Switzerland;u. Glasgow University, Glasgow G12 8QQ, United Kingdom;v. Harvard University, Cambridge, MA 02138, USA;w. Division of High Energy Physics, Department of Physics, University of Helsinki and Helsinki Institute of Physics, FIN-00014, Helsinki, Finland;x. University of Illinois, Urbana, IL 61801, USA;y. The Johns Hopkins University, Baltimore, MD 21218, USA;z. Institut für Experimentelle Kernphysik, Karlsruhe Institute of Technology, D-76131 Karlsruhe, Germany;11. Center for High Energy Physics: Kyungpook National University, Daegu 702-701, Republic of Korea;12. Seoul National University, Seoul 151-742, Republic of Korea;13. Sungkyunkwan University, Suwon 440-746, Republic of Korea;14. Korea Institute of Science and Technology Information, Daejeon 305-806, Republic of Korea;15. Chonnam National University, Gwangju 500-757, Republic of Korea;16. Chonbuk National University, Jeonju 561-756, Republic of Korea;17. Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA;18. University of Liverpool, Liverpool L69 7ZE, United Kingdom;19. University College London, London WC1E 6BT, United Kingdom;110. Centro de Investigaciones Energeticas Medioambientales y Tecnologicas, E-28040 Madrid, Spain;111. Massachusetts Institute of Technology, Cambridge, MA 02139, USA;112. Institute of Particle Physics: McGill University, Montréal, Québec, H3A 2T8, Canada;113. Simon Fraser University, Burnaby, British Columbia, V5A 1S6, Canada;114. University of Toronto, Toronto, Ontario, M5S 1A7, Canada;115. TRIUMF, Vancouver, British Columbia, V6T 2A3, Canada;1p. University of Michigan, Ann Arbor, MI 48109, USA;1q. Michigan State University, East Lansing, MI 48824, USA;1r. Institution for Theoretical and Experimental Physics, ITEP, Moscow 117259, Russia;1s. University of New Mexico, Albuquerque, NM 87131, USA;1t. The Ohio State University, Columbus, OH 43210, USA;1u. Okayama University, Okayama 700-8530, Japan;1v. Osaka City University, Osaka 588, Japan;1w. University of Oxford, Oxford OX1 3RH, United Kingdom;1x. Istituto Nazionale di Fisica Nucleare, Sezione di Padova–Trento, Italy;1y. University of Padova, I-35131 Padova, Italy;1z. University of Pennsylvania, Philadelphia, PA 19104, USA;21. Istituto Nazionale di Fisica Nucleare Pisa, Italy;22. University of Pisa, Italy;23. University of Siena, Italy;24. Scuola Normale Superiore, I-56127 Pisa, Italy;25. University of Pittsburgh, Pittsburgh, PA 15260, USA;26. Purdue University, West Lafayette, IN 47907, USA;27. University of Rochester, Rochester, NY 14627, USA;28. The Rockefeller University, New York, NY 10065, USA;29. Istituto Nazionale di Fisica Nucleare, Sezione di Roma 1, Italy;210. Sapienza Università di Roma, I-00185 Roma, Italy;211. Rutgers University, Piscataway, NJ 08855, USA;212. Texas A&M University, College Station, TX 77843, USA;213. Istituto Nazionale di Fisica Nucleare Trieste/Udine, I-34100 Trieste, Italy;214. University of Udine, I-33100 Udine, Italy;215. University of Tsukuba, Tsukuba, Ibaraki 305, Japan;2p. Tufts University, Medford, MA 02155, USA;2q. University of Virginia, Charlottesville, VA 22906, USA;2r. Waseda University, Tokyo 169, Japan;2s. Wayne State University, Detroit, MI 48201, USA;2t. University of Wisconsin, Madison, WI 53706, USA;2u. Yale University, New Haven, CT 06520, USA;1. University of Cincinnati, Department of Biomedical, Chemical, and Environmental Engineering, College of Engineering and Applied Science, P.O. Box 210012, Cincinnati, OH 45221-0012, USA;2. U.S. Center for Disease Control, National Institute of Occupational Safety and Health, 5555 Ridge Avenue, Cincinnati, OH 45213, USA;3. US EPA Office of Research and Development, National Risk Management Research Laboratory, Research Triangle Park, NC 27711, USA;4. US EPA Office of Research and Development, National Risk Management Research Laboratory, 26W Martin Luther King Dr., Cincinnati, OH 45268, USA;1. Key Laboratory of Semiconductor Photovoltaic Technology at Universities of Inner Mongolia Autonomous Region, School of Physical Science and Technology, Inner Mongolia University, Hohhot 010021, China;2. Ordos Institute of Technology, Ordos 017000, China;1. Department of Neurosurgery, Beijing Tian Tan Hospital, Capital Medical University, Beijing 100050, PR China;2. Department of Neurology, Liyuan Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430000, PR China;3. Department of Neurosurgery, the First Affiliated Hospital of Anhui Medical University, Hefei 230000, PR China;4. Neurotrauma Laboratory, Beijing Neurosurgical Institute, Capital Medical University, Beijing 100050, PR China;5. Department of Neurotrauma, General Hospital of Armed Police Forces, Beijing 100039, PR China;6. China National Clinical Research Center for Neurological Diseases, Beijing 100050, PR China;7. Beijing Key Laboratory of Central Nervous System Injury, Beijing 100050, PR China
Abstract:Alumina nanowire array standing on porous anodic alumina (PAA) membrane has been directly and efficiently synthesized in oxalic acid solution by one-step electrochemical anodic oxidation with changing anodic voltages. The morphology of the nanowires on PAA was observed by scanning electron microscopy (SEM). The different patterns on the surface of the sample were synthesized due to the reaction time. The fine structure of the patterns has shown that the pattern is composed of the alumina nanowire array and the morphologies of the patterns can mainly be attributed to the differences in the length of the alumina nanowires. The method of selected area electron diffraction (SAED) for transmission electron microscopy (TEM) has shown that these nanowires are amorphous. An etching model was given to explain the formation mechanism of the amorphous alumina nanowires.
Keywords:
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