Design and fabrication of NiFe2O4/few-layers WS2 composite for supercapacitor electrode material

IF 2.5 4区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Frontiers of Materials Science Pub Date : 2023-09-09 DOI:10.1007/s11706-023-0656-6

Xicheng Gao, Jianqiang Bi, Lulin Xie, Chen Liu

{"title":"Design and fabrication of NiFe2O4/few-layers WS2 composite for supercapacitor electrode material","authors":"Xicheng Gao, Jianqiang Bi, Lulin Xie, Chen Liu","doi":"10.1007/s11706-023-0656-6","DOIUrl":null,"url":null,"abstract":"<div>Few-layers WS2 was obtained through unique chemical liquid exfoliation of commercial WS2. Results showed that after the exfoliation process, the thickness of WS2 reduced significantly. Moreover, the NiFe2O4 nanosheets/WS2 composite was successfully synthesized through a facile hydrothermal method at 180 °C, and then proven by the analyses of field emission scanning electron microscopy, X-ray diffraction, and X-ray photoelectron spectroscopy. The composite showed a high specific surface area of 86.89 m2·g−1 with an average pore size of 3.13 nm. Besides, in the three-electrode electrochemical test, this composite exhibited a high specific capacitance of 878.04 F·g−1 at a current density of 1 A·g−1, while in the two-electrode system, the energy density of the composite could reach 25.47 Wh·kg−1 at the power density of 70 W·kg−1 and maintained 13.42 Wh·kg−1 at the higher power density of 7000 W·kg−1. All the excellent electrochemical performances demonstrate that the NiFe2O4 nanosheets/WS2 composite is an excellent candidate for supercapacitor applications.</div>","PeriodicalId":572,"journal":{"name":"Frontiers of Materials Science","volume":"17 3","pages":""},"PeriodicalIF":2.5000,"publicationDate":"2023-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Frontiers of Materials Science","FirstCategoryId":"88","ListUrlMain":"https://link.springer.com/article/10.1007/s11706-023-0656-6","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

Few-layers WS₂ was obtained through unique chemical liquid exfoliation of commercial WS₂. Results showed that after the exfoliation process, the thickness of WS₂ reduced significantly. Moreover, the NiFe₂O₄ nanosheets/WS₂ composite was successfully synthesized through a facile hydrothermal method at 180 °C, and then proven by the analyses of field emission scanning electron microscopy, X-ray diffraction, and X-ray photoelectron spectroscopy. The composite showed a high specific surface area of 86.89 m²·g⁻¹ with an average pore size of 3.13 nm. Besides, in the three-electrode electrochemical test, this composite exhibited a high specific capacitance of 878.04 F·g⁻¹ at a current density of 1 A·g⁻¹, while in the two-electrode system, the energy density of the composite could reach 25.47 Wh·kg⁻¹ at the power density of 70 W·kg⁻¹ and maintained 13.42 Wh·kg⁻¹ at the higher power density of 7000 W·kg⁻¹. All the excellent electrochemical performances demonstrate that the NiFe₂O₄ nanosheets/WS₂ composite is an excellent candidate for supercapacitor applications.

查看原文本刊更多论文

超级电容器电极材料NiFe2O4/少层WS2复合材料的设计与制备

采用独特的化学液体剥离法，制备了低层WS2。结果表明:经剥离处理后，WS2的厚度明显减小;在180℃条件下，通过水热法成功合成了NiFe2O4纳米片/WS2复合材料，并通过场发射扫描电镜、x射线衍射和x射线光电子能谱分析对其进行了验证。复合材料的比表面积为86.89 m2·g−1，平均孔径为3.13 nm。此外，在三电极电化学测试中，该复合材料在电流密度为1 a·g−1时表现出878.04 F·g−1的高比电容，而在双电极系统中，该复合材料在功率密度为70 W·kg−1时能量密度可达25.47 Wh·kg−1，在更高功率密度为7000 W·kg−1时能量密度保持在13.42 Wh·kg−1。这些优异的电化学性能表明，NiFe2O4纳米片/WS2复合材料是超级电容器的理想候选材料。

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分钟内获得全文求助全文

来源期刊

Frontiers of Materials Science MATERIALS SCIENCE, MULTIDISCIPLINARY-

CiteScore

4.20

自引率

3.70%

发文量

515

期刊介绍： Frontiers of Materials Science is a peer-reviewed international journal that publishes high quality reviews/mini-reviews, full-length research papers, and short Communications recording the latest pioneering studies on all aspects of materials science. It aims at providing a forum to promote communication and exchange between scientists in the worldwide materials science community. The subjects are seen from international and interdisciplinary perspectives covering areas including (but not limited to): Biomaterials including biomimetics and biomineralization; Nano materials; Polymers and composites; New metallic materials; Advanced ceramics; Materials modeling and computation; Frontier materials synthesis and characterization; Novel methods for materials manufacturing; Materials performance; Materials applications in energy, information and biotechnology.