Back to Search Start Over

Hierarchical NiCo2@PEDOT/PMo12 core and shell architectures for high-performance supercapacitors.

Authors :
Zhao, Yanan
Song, Yuli
Wang, Bing
Zhang, Yaqian
Zhu, Xiaoyu
Zhang, Yao
Li, Wenze
Source :
Materials Technology; Dec2022, Vol. 37 Issue 14, p3205-3211, 7p
Publication Year :
2022

Abstract

A lot of attention is being paid to developing new electrode materials for energy storage with good stability and excellent specific capacitance. This work involves hydrothermal and oxidation processes to grow NiCo<subscript>2</subscript>@PEDOT/PMo<subscript>12</subscript> materials on carbon cloth. At 20 mA cm<superscript>−2</superscript>, the prepared electrodes show an extremely high capacitance of 3476 mF cm<superscript>−2</superscript>. The results prove that NiCo<subscript>2</subscript>, PEDOT, and PMo<subscript>12</subscript> ternary components synergized to promote electron transport and electrolyte diffusion. The SC device presents a high energy density of 0.41 mW h cm<superscript>−3</superscript> at a power density of 8.57 mW cm<superscript>−3</superscript>, and cycle stability test shows 108.1 % after 600 cycles and 74.5 % after 6000 cycles. In addition, the capacitance of the ASC device is smaller than that of the SC, but the device retains 101.4 % of its initial capacitanc after 10000 cycles at 2 mA cm<superscript>−2</superscript>. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
10667857
Volume :
37
Issue :
14
Database :
Supplemental Index
Journal :
Materials Technology
Publication Type :
Academic Journal
Accession number :
160454058
Full Text :
https://doi.org/10.1080/10667857.2022.2137758