Controlled Synthesis of Hollow Hemispheric ZnO Shells/Cages on Graphite Fiber | Zendy

Xianbin Liu | Zendy; Hejun Du | Zendy; Zhiyuan Zeng | Zendy; Xiao Wei Sun | Zendy

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Controlled Synthesis of Hollow Hemispheric ZnO Shells/Cages on Graphite Fiber

Author(s) -

Xianbin Liu,

Hejun Du,

Zhiyuan Zeng,

Xiao Wei Sun

Publication year - 2011

Publication title -

isrn nanotechnology

Language(s) - English

Resource type - Journals

eISSN - 2090-6072

pISSN - 2090-6064

DOI - 10.5402/2011/823216

Subject(s) - sublimation (psychology) , materials science , crystallite , graphite , nanocrystal , chemical engineering , nanotechnology , composite material , metallurgy , psychology , engineering , psychotherapist

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.

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