One-pot synthesis of interconnected carbon-coated silicon nanosheets from clay minerals for high-performance lithium-ion battery anodes
文献类型：期刊论文
| 作者 | Wei, Shoushu1,2,3; Chen, Qingze1,2,3; Zhu, Runliang1,2,3 ; Du, Jing1,2,3; Xie, Jieyang1,2,3; Fu, Haoyang4; Xiong, Tao1,2,3; Liu, Hongmei1,2,3; Zhu, Jianxi1,2,3
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| 刊名 | APPLIED CLAY SCIENCE
 |
| 出版日期 | 2024-06-15 |
| 卷号 | 254页码:9 |
| 关键词 | Silicon nanosheets Carbon coating Clay minerals One -pot synthesis Lithium -ion battery anodes |
| ISSN号 | 0169-1317 |
| DOI | 10.1016/j.clay.2024.107388 |
| 英文摘要 | The silicon nanosheet/carbon composite emerges as a promising anode material for the next -generation commercial lithium -ion batteries. However, complex, costly, and energy -intensive synthesis procedures impede its practical application. Herein, the carbon -coated silicon nanosheets (Si/C) have been successfully synthesized via a one -pot strategy, involving a modified magnesiothermic reduction of talc followed by a reaction with CO 2 . The distinct chemical composition and layered nanostructure of talc enable the retention of Si nanosheets during exothermic reactions without additional templates or heat absorbents. The method shows significant potential for the scalable production of Si/C owing to the abundant silicon source, sustainable carbon source, and straightforward protocol. The resulting Si/C displays a hierarchical porous structure, with both macropores and mesopores, and an interconnected network of carbon -coated Si nanosheets. These structural characteristics facilitate rapid Li + diffusion and enable the material to accommodate the lithiation-induced mechanical strains. As a result, the Si/C electrode exhibits outstanding electrochemical performance, including a remarkable rate capability (with a specific capacity of 1220 mAh g +1 at 10.0 A g +1 ) and a high initial Coulombic efficiency of 88%. The work opens a new avenue for the development of Si/C composites from natural clay minerals through an economical and scalable strategy, which would contribute to the practical application of advanced Si -based anodes in lithium -ion batteries. |
| WOS研究方向 | Chemistry ; Materials Science ; Mineralogy |
| 语种 | 英语 |
| WOS记录号 | WOS:001235108000001 |
| 源URL | [http://ir.gig.ac.cn/handle/344008/78522]  |
| 专题 | 中国科学院矿物学与成矿学重点实验室 |
| 通讯作者 | Zhu, Jianxi |
| 作者单位 | 1.Chinese Acad Sci, Guangzhou Inst Geochem, Key Lab Mineral & Metallogeny, Guangdong Prov Key Lab Mineral Phys & Mat, Guangzhou 510640, Peoples R China 2.Chinese Acad Sci, Ctr Excellence Deep Earth Sci, Guangzhou 510640, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Nanyang Technol Univ, Sch Mat Sci & Engn, 50 Nanyang Ave, Singapore 639798, Singapore |
| 推荐引用方式 GB/T 7714 | Wei, Shoushu,Chen, Qingze,Zhu, Runliang,et al. One-pot synthesis of interconnected carbon-coated silicon nanosheets from clay minerals for high-performance lithium-ion battery anodes[J]. APPLIED CLAY SCIENCE,2024,254:9. |
| APA | Wei, Shoushu.,Chen, Qingze.,Zhu, Runliang.,Du, Jing.,Xie, Jieyang.,...&Zhu, Jianxi.(2024).One-pot synthesis of interconnected carbon-coated silicon nanosheets from clay minerals for high-performance lithium-ion battery anodes.APPLIED CLAY SCIENCE,254,9. |
| MLA | Wei, Shoushu,et al."One-pot synthesis of interconnected carbon-coated silicon nanosheets from clay minerals for high-performance lithium-ion battery anodes".APPLIED CLAY SCIENCE 254(2024):9. |
入库方式： OAI收割
来源：广州地球化学研究所
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