{"title":"Nitrogen-doped carbon-coated hollow SnS2/NiS microflowers for high-performance lithium storage","authors":"Junhai Wang, Jiandong Zheng, Liping Gao, Qingshan Dai, Sang Woo Joo, Jiarui Huang","doi":"10.1007/s11706-023-0654-8","DOIUrl":null,"url":null,"abstract":"<div><p>Nitrogen-doped carbon-coated hollow SnS<sub>2</sub>/NiS (SnS<sub>2</sub>/NiS@N-C) microflowers were obtained using NiSn(OH)<sub>6</sub> nanospheres as the template via a solvent-thermal method followed by the polydopamine coating and carbonization process. When served as an anode material for lithium-ion batteries, such hollow SnS<sub>2</sub>/NiS@N-C microflowers exhibited a capacity of 403.5 mAh·g<sup>−1</sup> at 2.0 A·g<sup>−1</sup> over 200 cycles and good rate performance. The electrochemical reaction kinetics of this anode was analyzed, and the morphologies and structures of anode materials after the cycling test were characterized. The high stability and good rate performance were mainly due to bimetallic synergy, hollow micro/nanostructure, and nitrogen-doped carbon layers. The revealed excellent electrochemical energy storage properties of hollow SnS<sub>2</sub>/NiS@N-C microflowers in this study highlight their potential as the anode material.</p></div>","PeriodicalId":572,"journal":{"name":"Frontiers of Materials Science","volume":"17 3","pages":""},"PeriodicalIF":2.5000,"publicationDate":"2023-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"4","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Frontiers of Materials Science","FirstCategoryId":"88","ListUrlMain":"https://link.springer.com/article/10.1007/s11706-023-0654-8","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: 4
Abstract
Nitrogen-doped carbon-coated hollow SnS2/NiS (SnS2/NiS@N-C) microflowers were obtained using NiSn(OH)6 nanospheres as the template via a solvent-thermal method followed by the polydopamine coating and carbonization process. When served as an anode material for lithium-ion batteries, such hollow SnS2/NiS@N-C microflowers exhibited a capacity of 403.5 mAh·g−1 at 2.0 A·g−1 over 200 cycles and good rate performance. The electrochemical reaction kinetics of this anode was analyzed, and the morphologies and structures of anode materials after the cycling test were characterized. The high stability and good rate performance were mainly due to bimetallic synergy, hollow micro/nanostructure, and nitrogen-doped carbon layers. The revealed excellent electrochemical energy storage properties of hollow SnS2/NiS@N-C microflowers in this study highlight their potential as the anode material.
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.
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