SiC-induced modification of MnCo2O4 nanoneedles fabricated on Ni foam for binder-free electrodes in high-performance asymmetrical supercapacitors

IF 2.7 4区 材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY Materials Letters Pub Date : 2024-11-05 DOI:10.1016/j.matlet.2024.137665
{"title":"SiC-induced modification of MnCo2O4 nanoneedles fabricated on Ni foam for binder-free electrodes in high-performance asymmetrical supercapacitors","authors":"","doi":"10.1016/j.matlet.2024.137665","DOIUrl":null,"url":null,"abstract":"<div><div>Supercapacitors with large energy densities are required for commercial applications. Herein, the urchin-like and hexagonal MnCo<sub>2</sub>O<sub>4</sub>/SiC composite is prepared <em>in situ</em> on Ni foam. The urchin-like MnCo<sub>2</sub>O<sub>4</sub>/SiC consists of nanoneedle clusters with a length of about 10 μm and a diameter of 20 nm. The MnCo<sub>2</sub>O<sub>4</sub>/SiC||AC asymmetrical supercapacitor (ASCs) shows an energy density of 90.3 Wh/kg (1.73F cm<sup>−2</sup>) at a power density of 1.25 kW/kg together with 92.1 % retention of the specific capacitance after 10,000 cycles. The results reveal excellent properties and large commercial potential.</div></div>","PeriodicalId":384,"journal":{"name":"Materials Letters","volume":null,"pages":null},"PeriodicalIF":2.7000,"publicationDate":"2024-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Materials Letters","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0167577X24018056","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0

Abstract

Supercapacitors with large energy densities are required for commercial applications. Herein, the urchin-like and hexagonal MnCo2O4/SiC composite is prepared in situ on Ni foam. The urchin-like MnCo2O4/SiC consists of nanoneedle clusters with a length of about 10 μm and a diameter of 20 nm. The MnCo2O4/SiC||AC asymmetrical supercapacitor (ASCs) shows an energy density of 90.3 Wh/kg (1.73F cm−2) at a power density of 1.25 kW/kg together with 92.1 % retention of the specific capacitance after 10,000 cycles. The results reveal excellent properties and large commercial potential.
查看原文
分享 分享
微信好友 朋友圈 QQ好友 复制链接
本刊更多论文
在镍泡沫上制造的 MnCo2O4 纳米针的碳化硅诱导改性,用于高性能非对称超级电容器中的无粘结剂电极
商业应用需要高能量密度的超级电容器。本文在镍泡沫上原位制备了海胆状六角形 MnCo2O4/SiC 复合材料。海胆状 MnCo2O4/SiC 由长度约为 10 μm、直径为 20 nm 的纳米针状簇组成。MnCo2O4/SiC||AC 不对称超级电容器(ASCs)的能量密度为 90.3 Wh/kg(1.73F cm-2),功率密度为 1.25 kW/kg,循环 10,000 次后比电容保持率为 92.1%。这些结果表明,这种电池具有卓越的性能和巨大的商业潜力。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 去求助
来源期刊
Materials Letters
Materials Letters 工程技术-材料科学:综合
CiteScore
5.60
自引率
3.30%
发文量
1948
审稿时长
50 days
期刊介绍: Materials Letters has an open access mirror journal Materials Letters: X, sharing the same aims and scope, editorial team, submission system and rigorous peer review. Materials Letters is dedicated to publishing novel, cutting edge reports of broad interest to the materials community. The journal provides a forum for materials scientists and engineers, physicists, and chemists to rapidly communicate on the most important topics in the field of materials. Contributions include, but are not limited to, a variety of topics such as: • Materials - Metals and alloys, amorphous solids, ceramics, composites, polymers, semiconductors • Applications - Structural, opto-electronic, magnetic, medical, MEMS, sensors, smart • Characterization - Analytical, microscopy, scanning probes, nanoscopic, optical, electrical, magnetic, acoustic, spectroscopic, diffraction • Novel Materials - Micro and nanostructures (nanowires, nanotubes, nanoparticles), nanocomposites, thin films, superlattices, quantum dots. • Processing - Crystal growth, thin film processing, sol-gel processing, mechanical processing, assembly, nanocrystalline processing. • Properties - Mechanical, magnetic, optical, electrical, ferroelectric, thermal, interfacial, transport, thermodynamic • Synthesis - Quenching, solid state, solidification, solution synthesis, vapor deposition, high pressure, explosive
期刊最新文献
SiC-induced modification of MnCo2O4 nanoneedles fabricated on Ni foam for binder-free electrodes in high-performance asymmetrical supercapacitors Unveiling the synergistic mechanism of Co-Cu catalysts for efficient oxygen evolution reactions Strategies for designing high-performance hard carbon anodes with enhanced lithium-ion diffusion and rate capability Improving the crystallinity of quaternary sputtered CIGS absorber layer properties via optimized deposition and annealing temperature High-Temperature oxidation effect of protective thin layers Ta/Cr coatings on Zr-1Nb alloy for corrosion-resistant components of nuclear reactors
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
已复制链接
已复制链接
快去分享给好友吧!
我知道了
×
扫码分享
扫码分享
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1