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

IF 2.9 4区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials Technology Pub Date : 2022-10-21 DOI:10.1080/10667857.2022.2137758

Yanan Zhao, Yuxuan Song, Bing Wang, Yaqian Zhang, Xiaoyu Zhu, Yao Zhang, Wenze Li

引用次数: 4

Abstract

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 NiCo2@PEDOT/PMo12 materials on carbon cloth. At 20 mA cm−2, the prepared electrodes show an extremely high capacitance of 3476 mF cm−2. The results prove that NiCo2, PEDOT, and PMo12 ternary components synergized to promote electron transport and electrolyte diffusion. The SC device presents a high energy density of 0.41 mW h cm−3 at a power density of 8.57 mW cm−3, 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−2 .

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用于高性能超级电容器的分层NiCo2@PEDOT/PMo12核心和外壳架构

具有良好稳定性和优良比电容的新型储能电极材料正受到广泛关注。这项工作涉及水热和氧化过程，在碳布上生长NiCo2@PEDOT/PMo12材料。在20ma cm−2时，制备的电极显示出3476 mF cm−2的极高电容。结果表明，NiCo2、PEDOT和PMo12三元组分协同作用，促进了电子传递和电解质扩散。在8.57 mW cm - 3的功率密度下，SC器件的能量密度高达0.41 mW h cm - 3，循环稳定性测试表明，循环600次后的稳定性为108.1%，循环6000次后的稳定性为74.5%。此外，ASC器件的电容小于SC器件，但在2ma cm−2下循环10000次后，器件仍保持其初始电容的101.4%。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Materials Technology 工程技术-材料科学：综合

CiteScore

6.00

自引率

9.70%

发文量

105

审稿时长

8.7 months

期刊介绍： Materials Technology: Advanced Performance Materials provides an international medium for the communication of progress in the field of functional materials (advanced materials in which composition, structure and surface are functionalised to confer specific, applications-oriented properties). The focus is on materials for biomedical, electronic, photonic and energy applications. Contributions should address the physical, chemical, or engineering sciences that underpin the design and application of these materials. The scientific and engineering aspects may include processing and structural characterisation from the micro- to nanoscale to achieve specific functionality.