| A facile preparation of submicro-sized Ti2AlC precursor toward Ti2CTx MXene for lithium storage | |
| Yang, Ling Xu1; Mu, Yong Biao2; Liu, Rui Jia3,4; Liu, Hui Jun1; Zeng, Lin2; Li, Hong Yi1; Lin, Guang Qiang1; Zeng, Chao Liu1; Fu, Chao1 | |
| Corresponding Author | Liu, Hui Jun(hui_jun_liu@163.com) ; Zeng, Chao Liu(clzeng@imr.ac.cn) |
| 2022-11-10 | |
| Source Publication | ELECTROCHIMICA ACTA
 |
| ISSN | 0013-4686 |
| Volume | 432Pages:9 |
| Abstract | MXenes, a new class of two-dimensional (2D) materials, have drawn special attention as potential anode materials for lithium-ion batteries (LIBs) in the last decade. However, the productization is primarily restricted by the scalable preparation of their parent MAX phases. Moreover, decreasing the particle size of the precursor powder could dramatically enhance the etching efficience. Furthermore, the fine-grained MAX phases are beneficial for improving the electrochemical performance of MXenes. Therefore, herein we report a facile and high-efficiency method to synthesize submicron-sized Ti2AlC powder in molten (Na,K)Cl in large quantities. As a result, Ti2CTx MXene powder was attained by almost complete removal of Al layer from the above precursor in 8% HF solution for 2 h at room temperature. The as-prepared Ti2CTx MXene exhibited superior performance as an anode material for LIBs with a sustainable discharge capacity of similar to 260 mAh.g(-1) at 100 mA.g(-1) in 120 cycles and a discharge capacity of 216 mAh.g(-1) at 500 mA.g(-1) with an excellent capacity retention of 96.13% after 540 cycles. The prominent performance of Ti2CTx as an anode material for LIBs is due to the introduction of high-density surface functional groups during etching of the submicron-sized Ti2AlC and enhanced density of edges, which provide more effective adsorption sites for Li ions. |
| Keyword | Ti2AlC Ti2CTx Anode material Modified molten salt method Lithium-ion batteries |
| Funding Organization | National Natural Science Foundation of China |
| DOI | 10.1016/j.electacta.2022.141152 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Natural Science Foundation of China ; [51671204] |
| WOS Research Area | Electrochemistry |
| WOS Subject | Electrochemistry |
| WOS ID | WOS:000862594200001 |
| Publisher | PERGAMON-ELSEVIER SCIENCE LTD |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/175794 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Liu, Hui Jun; Zeng, Chao Liu |
| Affiliation | 1.Songshan Lake Mat Lab, Dongguan 523808, Peoples R China 2.Southern Univ Sci & Technol, Dept Mech & Energy Engn, Shenzhen 518055, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 4.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China |
| Recommended Citation GB/T 7714 | Yang, Ling Xu,Mu, Yong Biao,Liu, Rui Jia,et al. A facile preparation of submicro-sized Ti2AlC precursor toward Ti2CTx MXene for lithium storage[J]. ELECTROCHIMICA ACTA,2022,432:9. |
| APA | Yang, Ling Xu.,Mu, Yong Biao.,Liu, Rui Jia.,Liu, Hui Jun.,Zeng, Lin.,...&Fu, Chao.(2022).A facile preparation of submicro-sized Ti2AlC precursor toward Ti2CTx MXene for lithium storage.ELECTROCHIMICA ACTA,432,9. |
| MLA | Yang, Ling Xu,et al."A facile preparation of submicro-sized Ti2AlC precursor toward Ti2CTx MXene for lithium storage".ELECTROCHIMICA ACTA 432(2022):9. |
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