Controlled transformation of ZnO nanobelts into CoO/Co3O4 nanowires
- Authors
- Na, Chan Woong; Woo, Hyung-Sik; Kim, Hyo-Joong; Jeong, Unyong; Chung, Jae-Ho; Lee, Jong-Heun
- Issue Date
- 2012
- Publisher
- ROYAL SOC CHEMISTRY
- Citation
- CRYSTENGCOMM, v.14, no.10, pp.3737 - 3741
- Indexed
- SCIE
SCOPUS
- Journal Title
- CRYSTENGCOMM
- Volume
- 14
- Number
- 10
- Start Page
- 3737
- End Page
- 3741
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/109329
- DOI
- 10.1039/c2ce06681e
- ISSN
- 1466-8033
- Abstract
- Highly crystalline CoO and Co3O4 nanowires were prepared by vapor-phase conversion of ZnO nanobelts. The ZnO nanobelts were successfully transformed into highly crystalline CoO nanowires by thermal evaporation of CoCl2 at 700 degrees C in Ar, which were subsequently converted to Co3O4 nanowires by oxidative annealing at 600 degrees C. The reactions at 500 and 550 degrees C in 0.5% O-2 led to the formation of well-defined oxide p-n junction nanostructures such as Co3O4-decorated ZnO nanobelts and ZnO-ZnCo2O4 core-shell nanocables, respectively, as the reaction intermediates. The evolutions of phase and residual Zn component during the conversion were investigated in relation to the reaction temperature and oxygen partial pressure.
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Collections - College of Science > Department of Physics > 1. Journal Articles
- College of Engineering > Department of Materials Science and Engineering > 1. Journal Articles
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