Preparation and characterization of electro-spun RuO2-Ag2O composite nanowires for electrochemical capacitors
- Authors
- Lee, Jung-Bae; Jeong, Sang-Yong; Moon, Won-Jin; Seong, Tae-Yeon; Ahn, Hyo-Jin
- Issue Date
- 17-3월-2011
- Publisher
- ELSEVIER SCIENCE SA
- Keywords
- Electrochemcial capacitors; Nanowires; Capacitance; High-rate performance
- Citation
- JOURNAL OF ALLOYS AND COMPOUNDS, v.509, no.11, pp.4336 - 4340
- Indexed
- SCIE
SCOPUS
- Journal Title
- JOURNAL OF ALLOYS AND COMPOUNDS
- Volume
- 509
- Number
- 11
- Start Page
- 4336
- End Page
- 4340
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/112838
- DOI
- 10.1016/j.jallcom.2011.01.063
- ISSN
- 0925-8388
- Abstract
- We synthesized RuO2-Ag2O composite nanowires by means of an electrospinning method and investigated the capacitance, high-rate performance, and cycle number dependence of the composite nanowire electrodes. In order to synthesize optimum RuO2-Ag2O composite nanowires, the relative mole ratio of Ag precursor to Ru precursor varied from similar to 0.1 to similar to 0.3. X-ray diffraction, X-ray photoelectron spectroscopy, scanning electron microscopy, and high-resolution transmission electron microscopy results show that crystalline RuO2-Ag2O composite nanowires (similar to 40-70 nm in diameter) are formed upon calcinations. Cyclic voltammetry results show that among the samples, the RuO2-Ag2O composite nanowires fabricated with the mole ratio of similar to 0.2 give the highest capacitance, excellent high-rate performance, and excellent retention of capacity (similar to 97%). (C) 2011 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 Materials Science and Engineering > 1. Journal Articles
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.