Controlled Synthesis of Hollow Hemispheric ZnO Shells/Cages on Graphite Fiber. (8th June 2011)

• Record Type: Journal Article
• Authors: Liu, Xianbin; Du, Hejun; Zeng, Zhiyuan; Sun, Xiao Wei
• Other Names: Chen I.-C. Academic Editor.
• Is Part Of: ISRN nanotechnology. Volume 2011(2011)
• Publication Date: 2011-06-08
• Subjects: Nanotechnology -- Periodicals; Nanotechnology; Nanotechnology; Electronic journals; Periodicals; Electronic journals; 620.5
• DOI: 10.5402/2011/823216
• Languages: English
• ISSNs: 2090-6064

Abstract

Abstract : Hollow hemispheric ZnO shells/cages are synthesized on graphite fiber via simple thermal evaporation process. The cage-like ZnO structures exhibit micron or submicron size and hollow hemispheric shape with polycrystalline shell made of the ZnO nanocrystals. Controlled time-sequenced growth experiment is conducted to interpret the growth process, which indicates that the growth mechanism of the hollow hemispheric ZnO shells/cages involves formation of Zn particles firstly, followed by oxidation of the outer surface of Zn droplets and meantime sublimation of the core Zn.