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Wire-like Bundle Arrays of Copper Hydroxide Prepared by the Electrochemical Anodization of Cu Foil

Authors
La, Duc-DuongPark, Sung YeolChoi, Young-WookKim, Yong Shin
Issue Date
Aug-2010
Publisher
대한화학회
Keywords
Cu Anodization; Copper hydroxide; Nanobundle; Nanowire
Citation
Bulletin of the Korean Chemical Society, v.31, no.8, pp.2283 - 2288
Indexed
SCIE
SCOPUS
KCI
Journal Title
Bulletin of the Korean Chemical Society
Volume
31
Number
8
Start Page
2283
End Page
2288
URI
https://scholarworks.bwise.kr/erica/handle/2021.sw.erica/39586
DOI
10.5012/bkcs.2010.31.8.2283
ISSN
0253-2964
Abstract
Nanostructured copper compounds were grown by electrochemical anodization of copper foil in aqueous NaOH under varying conditions including electrolyte concentration, reaction temperature, current density, and reaction time. Their morphology and atomic composition were investigated by using SEM, TEM, XRD, EDS and XPS. At the conditions ([NaOH] = 1 M, 20 degrees C, 2 mA cm(-2)), wire-like orthorhombic Cu(OH)(2)nanobundles with an average width of 100 - 300 nm and length of 10 mu m were synthesized with the preferential [100] growth direction. Furthermore, when the concentration decreased to 0.5 M NaOH, the ID nanobundle structure became narrower and longer without any change in compositions or crystalline structure. Side reaction pathways appeared to compete with the ID nanostructure ormation channels: the formation of CuO nanoleaves at 50 degrees C via the sequential dehydration of Cu(OH)(2), CuO/Cu2O aggregates in 4 M NaOH, and Cu2P nanoparticles and CuO nanosheets at lower current density.
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COLLEGE OF SCIENCE AND CONVERGENCE TECHNOLOGY (DEPARTMENT OF CHEMICAL AND MOLECULAR ENGINEERING)
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