Rapid growth of nanotubes and nanorods of wurtzite ZnO through microwave-irradiation of a metalorganic complex of zinc and a surfactant in solution
Data(s) |
01/04/2010
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Resumo |
Large quantities of single-crystalline ZnO nanorods and nanotubes have been prepared by the microwave, irradiation of a metalorganic complex of zinc, in the presence of a surfactant. The method is simple, fast, and inexpensive (as it uses a domestic microwave oven), and yields pure nanostructures of the hexagonal wurtzite phase of ZnO in min, and requires no conventional templating. The ZnO nanotubes formed have a hollow core with inner diameter varying from 140-160 nm and a wall of thickness, 40-50 nm. The length of nanorods and nanotubes varies in the narrow range of 500-600 nm. These nanostructures have been characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and selected area electron diffraction (SAED). The ZnO nanorods and nanotubes are found by SAED to be single-crystalline. The growth process of ZnO nanorods and nanotubes has been investigated by varying the surfactant concentration and microwave irradiation time. Based on the various results obtained, a tentative and plausible mechanism for the formation of ZnO nanostructures is proposed. |
Formato |
application/pdf |
Identificador |
http://eprints.iisc.ernet.in/29270/1/89.pdf Brahma, Sanjaya and Rao, Kalya Jagannatha and Shivashankar, Srinivasarao (2010) Rapid growth of nanotubes and nanorods of wurtzite ZnO through microwave-irradiation of a metalorganic complex of zinc and a surfactant in solution. In: Bulletin of Materials Science, 33 (2). pp. 89-95. |
Publicador |
Indian Academy of Sciences |
Relação |
http://www.ias.ac.in/matersci/ http://eprints.iisc.ernet.in/29270/ |
Palavras-Chave | #Solid State & Structural Chemistry Unit #Materials Engineering (formerly Metallurgy) #Centre for Nano Science and Engineering |
Tipo |
Journal Article PeerReviewed |