{"title":"NiCo2S4/MoS2 Composites for High-Performance Hybrid Supercapacitors","authors":"Jingyu Tian, Weili Qu, Rui Guo, Jing Liang and Xiaofeng Li*, ","doi":"10.1021/acsaem.4c0196710.1021/acsaem.4c01967","DOIUrl":null,"url":null,"abstract":"<p >Supercapacitors, as a novel energy storage technology, possess an excellent power density compared to batteries but a much lower energy density overall. Because of their special physicochemical characteristics, transition metal sulfides are thought to be viable options for electrode materials in electrochemical capacitors. Herein, we report NiCo<sub>2</sub>S<sub>4</sub>/MoS<sub>2</sub> micrometer flower arrays by a hydrothermal route. The samples used as cathodes exhibit a capacitance of 2110 F g<sup>–1</sup> when a current density of 1 A g<sup>–1</sup> is applied. The assembled NiCo<sub>2</sub>S<sub>4</sub>/MoS<sub>2</sub>//AC presents an energy density of 67.275 Wh kg<sup>–1</sup> at a power density reaching 2721.23 W kg<sup>–1</sup>. These devices still work stably even after folding various angles, demonstrating their wide applications in future wearable and portable devices.</p>","PeriodicalId":4,"journal":{"name":"ACS Applied Energy Materials","volume":"7 23","pages":"10998–11004 10998–11004"},"PeriodicalIF":5.4000,"publicationDate":"2024-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"ACS Applied Energy Materials","FirstCategoryId":"88","ListUrlMain":"https://pubs.acs.org/doi/10.1021/acsaem.4c01967","RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
引用次数: 0
摘要
超级电容器作为一种新型储能技术，与电池相比具有出色的功率密度，但总体能量密度要低得多。由于其特殊的物理化学特性，过渡金属硫化物被认为是电化学电容器电极材料的可行选择。在此，我们报告了通过水热法路线制备的 NiCo2S4/MoS2 微米花阵列。当施加 1 A g-1 的电流密度时，用作阴极的样品显示出 2110 F g-1 的电容。组装后的 NiCo2S4/MoS2//AC 的能量密度为 67.275 Wh kg-1，功率密度达到 2721.23 W kg-1。这些设备在经过各种角度的折叠后仍能稳定工作，这表明它们在未来的可穿戴和便携设备中有着广泛的应用。
NiCo2S4/MoS2 Composites for High-Performance Hybrid Supercapacitors
Supercapacitors, as a novel energy storage technology, possess an excellent power density compared to batteries but a much lower energy density overall. Because of their special physicochemical characteristics, transition metal sulfides are thought to be viable options for electrode materials in electrochemical capacitors. Herein, we report NiCo2S4/MoS2 micrometer flower arrays by a hydrothermal route. The samples used as cathodes exhibit a capacitance of 2110 F g–1 when a current density of 1 A g–1 is applied. The assembled NiCo2S4/MoS2//AC presents an energy density of 67.275 Wh kg–1 at a power density reaching 2721.23 W kg–1. These devices still work stably even after folding various angles, demonstrating their wide applications in future wearable and portable devices.
期刊介绍：
ACS Applied Energy Materials is an interdisciplinary journal publishing original research covering all aspects of materials, engineering, chemistry, physics and biology relevant to energy conversion and storage. The journal is devoted to reports of new and original experimental and theoretical research of an applied nature that integrate knowledge in the areas of materials, engineering, physics, bioscience, and chemistry into important energy applications.
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