Large-scale preparation of aluminum borate-coated aluminum oxide nanowires

2020-02-24 21:36:09

nm aluminum coated nanowires oxide

责任者: Qi, S.R.;Zhang, J.;Huang, Y.;Lin, J.;Ding, X.X.;Tang, C. 单位: Dept. of Phys., Central China Normal Univ., Wuhan, China 来源出处: Journal of Solid State Chemistry(J. Solid State Chem. (USA)),2005/07/,178(7):2262-6 摘要: Single-crystal and uniform aluminum borate (Al4B2O9)-coated aluminum oxide nanowires have been synthesized in high purity and in large yield via a reaction of metal aluminum with boron oxide in the presence of carbon nanotubes (CNTs). The aluminum oxide nanowires exhibit a well-crystallized one-dimensional structure with diameters ranging from 50 to 70nm, and the Al4B2O9 have a coating thickness of about 1-5nm. CNTs play a crucial role in the formation of the important ceramic nanowires, by providing a platform to grow the composite structure. The growth mechanism was proposed by the detailed microscopy observations. [All rights reserved Elsevier] 关键词: aluminium compounds;coatings;crystal growth;nanowires;transmission electron microscopy;X-ray diffraction;aluminum borate-coated aluminum oxide nanowire;single-crystal aluminum borate-coated aluminum oxide nanowires;metal aluminum;coating thickness;carbon nanotubes;ceramic nanowires;composite structure;50 to 70 nm;1 to 5 nm;Al4B2O9-Al2O3