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Facile synthesis of hollow Cu2O polyhedron without template or etchant.
- Source :
-
Materials Letters . Feb2016, Vol. 164, p225-228. 4p. - Publication Year :
- 2016
-
Abstract
- Previously, hollow Cu 2 O configurations have been fabricated with the use of template or etchant. However, in this study, simply mixing aqueous sodium dodecyl sulfate (SDS), CuCl 2 , NaOH, and NH 2 OH·HCl in the order listed, Cu 2 O polyhedron with empty interior arise, which is rarely reported. Observations made on the novel particles confirm the hollow polyhedral feature and reveal that the uniform particles exhibit a narrow size distribution at around 300–400 nm in diameter and ca. 50 nm in wall thickness. It was recorded that, upon the addition of reductant (NH 2 OH·HCl), the solution color changed orderly from light blue to green, yellow, and then orange within 1 h, while the basic mixture solution turned to acid immediately. We have reason to attribute the formation of hollow polyhedron to the surfactant role of SDS and the co-etching effect of oxidative etching and acidic etching, acting on dissolving Cu 2 O nanocrystals via oxidation with oxygen and reaction with HCl (from NH 2 OH·HCl). [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 0167577X
- Volume :
- 164
- Database :
- Academic Search Index
- Journal :
- Materials Letters
- Publication Type :
- Academic Journal
- Accession number :
- 111419118
- Full Text :
- https://doi.org/10.1016/j.matlet.2015.11.010