Highly-reactive Al/CuO nanoenergetic materials with a tubular structure. (5th March 2017)

• Record Type: Journal Article
• Authors: Yin, Yanjun; Li, Xueming; Shu, Yuanjie; Guo, Xiaogang; Zhu, Yuhua; Huang, Xinyue; Bao, Hebin; Xu, Ke
• Is Part Of: Materials & design. Volume 117(2017)
• Page Start: 104
• Page End: 110
• Publication Date: 2017-03-05
• Subjects: Nanoenergetic materials -- Intimate contact -- Specific surface area -- Thin films; Materials -- Periodicals; Engineering design -- Periodicals; Matériaux -- Périodiques; Conception technique -- Périodiques; Electronic journals; 620.11
• DOI: 10.1016/j.matdes.2016.12.083
• Languages: English
• ISSNs: 0264-1275

Abstract

Abstract: Al/CuO nanoenergetic materials with nanotube and nanorod morphologies were prepared and investigated in this study. The CuO nanotubes and nanorods synthesized by chemical etching are homogenous on a large scale, with an external diameter in the range of 100– 200 nm and typical lengths of 5– 7 μm. Each of these CuO nano-arrays was deposited on nano-Al by electrophoretic deposition. Using the Brunauer-Emmett-Teller method, the Al/CuO nanotube composite is determined to have a larger specific surface area (43.20 m 2 /g) than that of the Al/CuO nanorod composite (16.75 m 2 /g). The energy released from the Al/CuO nanotubes is approximately to 3264 J/g, which is higher than that released from the Al/CuO nanorods (2013 J/g). The combustion flames for the Al/CuO nanotubes are also more rapid and violent. It is speculated that the excellent output of energy and outstanding combustion performance of the Al/CuO nanotubes could be ascribed to their tubular architecture, which has a larger specific surface area enhances the intimate contact and mass transmission between fuel and oxide. Graphical abstract: Highlights: The CuO nanotubes and nanorods were synthesized successfully by chemical etching without using a template. The energy release and combustion performance of the Al/CuO nanotubes are enhanced due to its tubular architecture.