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Controlling the Formation of Nanocavities in Kirkendall Nanoobjects through Sequential Thermal Ex Situ Oxidation and In Situ Reduction Reactions
- Source :
- Small, Small, Wiley-VCH Verlag, 2016, 12 (21), pp.2885-2892. ⟨10.1002/smll.201600396⟩
- Publication Year :
- 2016
- Publisher :
- HAL CCSD, 2016.
-
Abstract
- Controlling the porosity, the shape, and the morphology of Kirkendall hollow nanostructures is the key factor to tune the properties of these tailor-made nanomaterials which allow in turn broadening their applications. It is shown that by applying a continuous oxidation to copper nanowires following a temperature ramp protocol, one can synthesize cuprous oxide nanotubes containing periodic copper nanoparticles. A further oxidation of such nanoobjects allows obtaining cupric oxide nanotubes with a bamboo-like structure. On the other hand, by applying a sequential oxidation and reduction reactions to copper nanowires, one can synthesize hollow nanoobjects with complex shapes and morphologies that cannot be obtained using the Kirkendall effect alone, such as necklace-like cuprous oxide nanotubes, periodic solid copper nanoparticles or hollow cuprous oxide nanospheres interconnected with single crystal cuprous oxide nanorods, and aligned and periodic hollow nanospheres embedded in a cuprous oxide nanotube. The strategy demonstrated in this study opens new avenues for the engineering of hollow nanostructures with potential applications in gas sensing, catalysis, and energy storage.
- Subjects :
- Nanotube
Nanostructure
Materials science
Kirkendall effect
Oxide
chemistry.chemical_element
Nanoparticle
Nanotechnology
02 engineering and technology
General Chemistry
010402 general chemistry
021001 nanoscience & nanotechnology
01 natural sciences
Copper
0104 chemical sciences
Nanomaterials
Biomaterials
chemistry.chemical_compound
chemistry
[PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci]
General Materials Science
Nanorod
0210 nano-technology
ComputingMilieux_MISCELLANEOUS
Biotechnology
Subjects
Details
- Language :
- English
- ISSN :
- 16136810 and 16136829
- Database :
- OpenAIRE
- Journal :
- Small, Small, Wiley-VCH Verlag, 2016, 12 (21), pp.2885-2892. ⟨10.1002/smll.201600396⟩
- Accession number :
- edsair.doi.dedup.....12ad5f70e051d05eb4c57ff444e24646