High-power and long-life supercapacitive performance of hierarchical, 3-D urchin-like W18O49 nanostructure electrodes
- Authors
- Park, Sangbaek; Shim, Hyun-Woo; Lee, Chan Woo; Song, Hee Jo; Kim, Jae-Chan; Kim, Dong-Wan
- Issue Date
- 3월-2016
- Publisher
- TSINGHUA UNIV PRESS
- Keywords
- hierarchical structure; W18O49; high-power; long cycle life; supercapacitor
- Citation
- NANO RESEARCH, v.9, no.3, pp.633 - 643
- Indexed
- SCIE
SCOPUS
- Journal Title
- NANO RESEARCH
- Volume
- 9
- Number
- 3
- Start Page
- 633
- End Page
- 643
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/89401
- DOI
- 10.1007/s12274-015-0943-3
- ISSN
- 1998-0124
- Abstract
- We report the facile, one-pot synthesis of 3-D urchin-like W18O49 nanostructures (U-WO) via a simple solvothermal approach. An excellent supercapacitive performance was achieved by the U-WO because of its large Brunauer-Emmett-Teller (BET) specific surface area (ca. 123 m(2)center dot g(-1)) and unique morphological and structural features. The U-WO electrodes not only exhibit a high rate-capability with a specific capacitance (Csp) of similar to 235 F center dot g(-1) at a current density of 20 A center dot g(-1), but also superior long-life performance for 1,000 cycles, and even up to 7,000 cycles, showing similar to 176 F center dot g(-1) at a high current density of 40 A center dot g(-1).
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Collections - College of Engineering > School of Civil, Environmental and Architectural Engineering > 1. Journal Articles
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