Báo cáo hóa học: "Synthesis and Growth Mechanism of Ni Nanotubes and Nanowires"

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Research Synthesis and Growth Mechanism of Ni Nanotubes and Nanowires | Nanoscale Res Lett 2009 4 1015-1020 DOI s11671-009-9348-0 NANO EXPRESS Synthesis and Growth Mechanism of Ni Nanotubes and Nanowires Xiaoru Li Yiqian Wang Guojun Song Zhi Peng Yongming Yu Xilin She Jianjiang Li Received 23 December 2008 Accepted 14 May 2009 Published online 31 May 2009 to the authors 2009 Abstract Highly ordered Ni nanotube and nanowire arrays were fabricated via electrodeposition. The Ni microstructures and the process of the formation were investigated using conventional and high-resolution transmission electron microscope. Herein we demonstrated the systematic fabrication of Ni nanotube and nanowire arrays and proposed an original growth mechanism. With the different deposition time nanotubes or nanowires can be obtained. Tubular nanostructures can be obtained at short time while nanowires take longer time to form. This formation mechanism is applicable to design and synthesize other metal nanostructures and even compound nanostuc-tures via template-based electrodeposition. Keywords Nanotubes Nanowires Growth mechanism Electrodeposition Introduction Nanostructures have received comprehensive attention owing to their novel optical electrical catalytic and magnetic properties and their potential applications in nanoscale electronic sensing mechanical and magnetic devices 1 2 and information storage systems 3-6 . X. Li G. Song El Z. Peng Y. Yu X. She J. Li Institute of Polymer Materials Qingdao University No. 308 Ningxia Road Qingdao 266071 China e-mail songguojunqdu@ Y. Wang Laboratory of Advanced Fiber Materials and Modern Textile The Growing Base for State Key Laboratory Qingdao University No. 308 Ningxia Road Qingdao 266071 People s Republic of China Among various synthetic processes template synthesis has been proved to be a versatile and simple approach for the preparation of many nanostructures such as conductive polymers metals semiconductors carbon and other materials 7-10 . Among these materials metal nanostructures have .

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