Engineering the shape of one-dimensional metallic nanostructures via nanopore electrochemistry
- Authors
- Jeon, Yoo Sang; Park, Bum Chul; Ko, Min Jun; Moon, Jun Hwan; Jeong, Eunjin; Kim, Young Keun
- Issue Date
- 2월-2022
- Publisher
- ELSEVIER SCI LTD
- Keywords
- Nanoarchitecture; Electrodeposition; Additives; Nanowires; Nanotubes; Nanocoils
- Citation
- NANO TODAY, v.42
- Indexed
- SCIE
SCOPUS
- Journal Title
- NANO TODAY
- Volume
- 42
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/135247
- DOI
- 10.1016/j.nantod.2021.101348
- ISSN
- 1748-0132
- Abstract
- The architecture of nanostructures is pivotal to determine material properties at the nanoscale, indicating the importance of harnessing sophisticated nanochemistry to elicit desirable material morphology with uniformity. The simplicity of template-assisted electrodeposition makes it a promising strategy for the fabrication of anisotropic nanomaterials. However, a challenge it faces is the complexity of the materials. This study presents a facile strategy and fabrication mechanism to synthesize nanotubes or nanocoils by selecting additives such as vanadyl ions and L-ascorbic acid. Vanadyl ions stick to the protonated anodized aluminum oxide surface, paving the way for electronic conduction. When a higher electrical field is applied, linear sweep voltammetry implies surface conduction mode is dominant in the spatially confined template. As L-ascorbic acid is included in the electrolyte, the nanostructure can be regulated from nanotubes to nanocoils. The nanocoils consist of numerous nanocrystalline primary particle considered as building blocks, and their relationship affects the final structures. The reaction product, vanadyl ascorbate, acts as a hurdle by partially hindering surface conduction and a helical modifier, inducing the formation of primary particle and their nanocoil assembly. Finally, a state diagram is provided to illustrate the diverse nanostructures at optimized applied current and additive ratio conditions. (c) 2021 Elsevier Ltd. All rights reserved.
- Files in This Item
- There are no files associated with this item.
- Appears in
Collections - College of Engineering > Department of Materials Science and Engineering > 1. Journal Articles
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.