Investigation of structural and chemical transitions in copper oxide microstructures produced by combustion waves in a mixture of CuO-Cu2O-Cu and fuel
- Authors
- Hwang, Hayoung; Lee, Kang Yeol; Yeo, Taehan; Choi, Wonjoon
- Issue Date
- 30-12월-2015
- Publisher
- ELSEVIER SCIENCE BV
- Keywords
- Combustion wave; Exothermic chemical reaction; Copper oxide; Combustion synthesis; Thermal transport
- Citation
- APPLIED SURFACE SCIENCE, v.359, pp.931 - 938
- Indexed
- SCIE
SCOPUS
- Journal Title
- APPLIED SURFACE SCIENCE
- Volume
- 359
- Start Page
- 931
- End Page
- 938
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/91539
- DOI
- 10.1016/j.apsusc.2015.10.201
- ISSN
- 0169-4332
- 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 degrees 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. (C) 2015 Elsevier B.V. All rights reserved.
- Files in This Item
- There are no files associated with this item.
- Appears in
Collections - College of Engineering > Department of Mechanical Engineering > 1. Journal Articles
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.