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Crystal Defects on Multi-Walled Carbon Nanotubes by Cobalt Oxide
- Source :
- Journal of Nanoscience and Nanotechnology. 10:2375-2380
- Publication Year :
- 2010
- Publisher :
- American Scientific Publishers, 2010.
-
Abstract
- This paper reports a new method to make crystal defects on the surface of multi-walled carbon nanotubes (MWCNTs) using the cobalt oxide as the oxidant for breaking carbon surface. The air oxidation of cobalt oxide (CoO) deposited on MWCNTs created various kinds of defects on their surface. Transmission Electron Micrograph (TEM) images showed clear defects such as broken crystal lines and asymmetric wall after air oxidation. X-ray powder diffraction (XRD) data showed that CoO on MWCNTs changed into Co3O4 after air oxidation. After removing Co3O4 from MWCNTs by acid, defective MWCNTs were obtained and showed defects of a clear trace where cobalt oxide had existed. This resulted from the reaction of air oxidation of CoO and carbon reduction of Co3O4, leading to the crystallinity defect of MWCNTs.
- Subjects :
- Materials science
Biomedical Engineering
chemistry.chemical_element
Bioengineering
General Chemistry
Carbon nanotube
Condensed Matter Physics
Crystallographic defect
law.invention
Crystal
Crystallinity
chemistry
Chemical engineering
law
Transmission electron micrograph
General Materials Science
Carbon
Cobalt oxide
Powder diffraction
Subjects
Details
- ISSN :
- 15334899 and 15334880
- Volume :
- 10
- Database :
- OpenAIRE
- Journal :
- Journal of Nanoscience and Nanotechnology
- Accession number :
- edsair.doi.dedup.....78f45fd4d8ed1f58ce6b1c525cd70427