High-power and long-life supercapacitive performance of hierarchical, 3-D urchin-like W18O49 nanostructure electrodes

Sangbaek Park; Hyun Woo Shim; Chan Woo Lee; Hee Jo Song; Jae Chan Kim; Dong Wan Kim

doi:10.1007/s12274-015-0943-3

High-power and long-life supercapacitive performance of hierarchical, 3-D urchin-like W₁₈O₄₉ nanostructure electrodes

Sangbaek Park, Hyun Woo Shim, Chan Woo Lee, Hee Jo Song, Jae Chan Kim, Dong Wan Kim

Research output: Contribution to journal › Article › peer-review

59 Citations (Scopus)

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 m²·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 ~235 F·g^–1 at a current density of 20 A·g^–1, but also superior long-life performance for 1,000 cycles, and even up to 7,000 cycles, showing ~176 F·g^–1 at a high current density of 40 A·g^–1. [Figure not available: see fulltext.]

Original language	English
Pages (from-to)	633-643
Number of pages	11
Journal	Nano Research
Volume	9
Issue number	3
DOIs	https://doi.org/10.1007/s12274-015-0943-3
Publication status	Published - 2016 Mar 1

Bibliographical note

Funding Information:
This work was supported by the National Research Foundation of Korea (NRF) Grant funded by the Minist ry of Science, ICT, and Future Planning (No. 2011- 0030300) and by the institutional research program of the Korea Institute of Science and Technology.

Publisher Copyright:
© 2016, Tsinghua University Press and Springer-Verlag Berlin Heidelberg.

Keywords

WO
hierarchical structure
high-power
long cycle life
supercapacitor

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics
General Materials Science
Condensed Matter Physics
Electrical and Electronic Engineering

Access to Document

10.1007/s12274-015-0943-3

Cite this

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title = "High-power and long-life supercapacitive performance of hierarchical, 3-D urchin-like W18O49 nanostructure electrodes",

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 m2·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 ~235 F·g–1 at a current density of 20 A·g–1, but also superior long-life performance for 1,000 cycles, and even up to 7,000 cycles, showing ~176 F·g–1 at a high current density of 40 A·g–1. [Figure not available: see fulltext.]",

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note = "Funding Information: This work was supported by the National Research Foundation of Korea (NRF) Grant funded by the Minist ry of Science, ICT, and Future Planning (No. 2011- 0030300) and by the institutional research program of the Korea Institute of Science and Technology. Publisher Copyright: {\textcopyright} 2016, Tsinghua University Press and Springer-Verlag Berlin Heidelberg.",

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AU - Kim, Jae Chan

AU - Kim, Dong Wan

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