Abstract
The application of micro/nanostructured materials to combustion enables distinctive chemical reactions that can be used to modulate the reaction rates. Simultaneously, combustion is capable of changing the intrinsic properties of micro/nanostructured materials based on chemical interactions in high-temperature conditions. In this work, we investigate the structural-chemical transition of copper oxide microstructures exposed to interfacially driven combustion waves. The high thermal energy and exchange of chemical compounds resulting from the instant combustion waves cause direct transition without any further processes. The precise characterization of the structural and chemical transitions in the copper oxide microstructures and chemical fuels confirm that the self-propagating combustion waves in the layered composites of Cu/Cu2O/CuO microparticle-based films and the chemical fuel layers yield the direct synthesis of Cu(OH)2 flower-like structures and nanowires. The propagation of combustion waves at the interface induces an increase of the surface temperatures over 650 °C and the direct interaction between the copper oxide and chemical compounds of the fuel layers. Further application of these interfacially driven combustion waves will contribute to the development of one-step, fast, low-cost methods for the synthesis of micro/nanostructured materials.
| Original language | English |
|---|---|
| Pages (from-to) | 931-938 |
| Number of pages | 8 |
| Journal | Applied Surface Science |
| Volume | 359 |
| DOIs | |
| Publication status | Published - 2015 Dec 30 |
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Keywords
- Combustion synthesis
- Combustion wave
- Copper oxide
- Exothermic chemical reaction
- Thermal transport
ASJC Scopus subject areas
- Surfaces, Coatings and Films
Cite this
Investigation of structural and chemical transitions in copper oxide microstructures produced by combustion waves in a mixture of CuO-Cu2O-Cu and fuel. / Hwang, Hayoung; Lee, Kang Yeol; Yeo, Taehan; Choi, Wonjoon.
In: Applied Surface Science, Vol. 359, 30.12.2015, p. 931-938.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Investigation of structural and chemical transitions in copper oxide microstructures produced by combustion waves in a mixture of CuO-Cu2O-Cu and fuel
AU - Hwang, Hayoung
AU - Lee, Kang Yeol
AU - Yeo, Taehan
AU - Choi, Wonjoon
PY - 2015/12/30
Y1 - 2015/12/30
N2 - The application of micro/nanostructured materials to combustion enables distinctive chemical reactions that can be used to modulate the reaction rates. Simultaneously, combustion is capable of changing the intrinsic properties of micro/nanostructured materials based on chemical interactions in high-temperature conditions. In this work, we investigate the structural-chemical transition of copper oxide microstructures exposed to interfacially driven combustion waves. The high thermal energy and exchange of chemical compounds resulting from the instant combustion waves cause direct transition without any further processes. The precise characterization of the structural and chemical transitions in the copper oxide microstructures and chemical fuels confirm that the self-propagating combustion waves in the layered composites of Cu/Cu2O/CuO microparticle-based films and the chemical fuel layers yield the direct synthesis of Cu(OH)2 flower-like structures and nanowires. The propagation of combustion waves at the interface induces an increase of the surface temperatures over 650 °C and the direct interaction between the copper oxide and chemical compounds of the fuel layers. Further application of these interfacially driven combustion waves will contribute to the development of one-step, fast, low-cost methods for the synthesis of micro/nanostructured materials.
AB - The application of micro/nanostructured materials to combustion enables distinctive chemical reactions that can be used to modulate the reaction rates. Simultaneously, combustion is capable of changing the intrinsic properties of micro/nanostructured materials based on chemical interactions in high-temperature conditions. In this work, we investigate the structural-chemical transition of copper oxide microstructures exposed to interfacially driven combustion waves. The high thermal energy and exchange of chemical compounds resulting from the instant combustion waves cause direct transition without any further processes. The precise characterization of the structural and chemical transitions in the copper oxide microstructures and chemical fuels confirm that the self-propagating combustion waves in the layered composites of Cu/Cu2O/CuO microparticle-based films and the chemical fuel layers yield the direct synthesis of Cu(OH)2 flower-like structures and nanowires. The propagation of combustion waves at the interface induces an increase of the surface temperatures over 650 °C and the direct interaction between the copper oxide and chemical compounds of the fuel layers. Further application of these interfacially driven combustion waves will contribute to the development of one-step, fast, low-cost methods for the synthesis of micro/nanostructured materials.
KW - Combustion synthesis
KW - Combustion wave
KW - Copper oxide
KW - Exothermic chemical reaction
KW - Thermal transport
UR - http://www.scopus.com/inward/record.url?scp=84961173661&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84961173661&partnerID=8YFLogxK
U2 - 10.1016/j.apsusc.2015.10.201
DO - 10.1016/j.apsusc.2015.10.201
M3 - Article
AN - SCOPUS:84961173661
VL - 359
SP - 931
EP - 938
JO - Applied Surface Science
JF - Applied Surface Science
SN - 0169-4332
ER -