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https://hdl.handle.net/2440/114517
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Type: | Journal article |
Title: | Highly compressible nitrogen-doped carbon foam electrode with excellent rate capability via a smart etching and catalytic process |
Author: | Xiao, K. Zeng, Y. Long, J. Chen, H. Ding, L.-X. Wang, S. Wang, H. |
Citation: | ACS Applied Materials and Interfaces, 2017; 9(18):15477-15483 |
Publisher: | American Chemical Society |
Issue Date: | 2017 |
ISSN: | 1944-8244 1944-8252 |
Statement of Responsibility: | Kang Xiao, Yanhua Zeng, Jin Long, Hongbin Chen, Liang-Xin Ding, Suqing Wang, and Haihui Wang |
Abstract: | Freestanding three-dimensional nitrogen-doped carbon foam with large pores is proposed as a promising electrode configuration for elastic electronics. Although it exhibits excellent mechanical performance, the capacitive performances (especially its rate capability) are still unsatisfactory. By using KMnO₄, we demonstrate a smart etching and catalytic process to form highly graphitized and etched nitrogen-doped carbon foam (ENCF) with an exfoliated carbon-shell architecture. These compositional and structural features endow the ENCF electrodes with excellent electron conductivity as well as more ion-accessible electrochemical active sites. Significantly, all-solid-state symmetric supercapacitor devices based on the ENCF electrodes exhibit enhanced specific capacitance and marked high-rate capability. Furthermore, the integrated device has no significant capacity loss under 60% compressive strain. |
Keywords: | KMnO₄; nitrogen-doped carbon; compressible electrode; symmetric supercapacitor; excellent rate capability |
Rights: | © 2017 American Chemical Society |
DOI: | 10.1021/acsami.7b02381 |
Grant ID: | 21406078 21536005 |
Published version: | http://dx.doi.org/10.1021/acsami.7b02381 |
Appears in Collections: | Aurora harvest 8 Chemical Engineering publications |
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