| Intercalation-deintercalation design in MXenes for high-performance supercapacitors | |
| Li, Zhenjiang1; Dai, Jun2; Li, Yiran3; Sun, Changlong1; Meng, Alan4; Cheng, Renfei5; Zhao, Jian1; Hu, Minmin1; Wang, Xiaohui5 | |
| Corresponding Author | Hu, Minmin(03581@qust.edu.cn) ; Wang, Xiaohui(wang@imr.ac.cn) |
| 2021-11-22 | |
| Source Publication | NANO RESEARCH
 |
| ISSN | 1998-0124 |
| Pages | 9 |
| Abstract | MXene is a new intercalation pseudocapacitive electrode material for supercapacitor application. Intensifying fast ion diffusion is significantly essential for MXene to achieve excellent electrochemical performance. The expansion of interlayer void by traditional spontaneous species intercalation always leads to a slight increase in capacitance due to the existence of species sacrificing the smooth diffusion of electrolyte ions. Herein, an effective intercalation-deintercalation interlayer design strategy is proposed to help MXene achieve higher capacitance. Electrochemical cation intercalation leads to the expansion of interlayer space. After electrochemical cation extraction, intercalated cations are deintercalated mostly, leaving a small number of cations trapped in the interlayer silt and serving as pillars to maintain the interlayer space, offering an open, unobstructed interlayer space for better ion migration and storage. Also, a preferred surface with more -OH terminations for redox reaction is created due to the reaction between cations and -OH terminations. As a result, the processed MXene delivers a much improved capacitance compared to that of the original Ti3C2Tx electrode (T stands for the surface termination groups, such as -OH, -F, and -O). This study demonstrates an improvement of electrochemical performance of MXene electrodes by controlling the interlayer structure and surface chemistry. |
| Keyword | MXene electrochemical ion intercalation-deintercalation interlayer design supercapacitor energy storage |
| Funding Organization | National Natural Science Foundation of China ; Major Basic Research Program of Natural Science Foundation of Shandong Province ; Natural Science Foundation of Shandong Province ; Innovation and Technology Program of Shandong Province ; Open Project of Chemistry Department of Qingdao University of Science and Technology ; Taishan Scholars Program of Shandong Province ; China Postdoctoral Science Foundation ; Guangdong Basic and Applied Basic Research Foundation ; Innovation Pilot Project of Integration of Science, Education and Industry of Shandong Province |
| DOI | 10.1007/s12274-021-3939-1 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Natural Science Foundation of China[52072196] ; National Natural Science Foundation of China[52002199] ; National Natural Science Foundation of China[52002200] ; National Natural Science Foundation of China[52071171] ; National Natural Science Foundation of China[52102106] ; Major Basic Research Program of Natural Science Foundation of Shandong Province[ZR2020ZD09] ; Natural Science Foundation of Shandong Province[ZR2019BEM042] ; Natural Science Foundation of Shandong Province[ZR2020QE063] ; Innovation and Technology Program of Shandong Province[2020KJA004] ; Open Project of Chemistry Department of Qingdao University of Science and Technology[QUSTHX201813] ; Taishan Scholars Program of Shandong Province[ts201511034] ; China Postdoctoral Science Foundation[2020M683450] ; Guangdong Basic and Applied Basic Research Foundation[2019A1515110933] ; Guangdong Basic and Applied Basic Research Foundation[2019A1515110554] ; Guangdong Basic and Applied Basic Research Foundation[2020A1515111086] ; Guangdong Basic and Applied Basic Research Foundation[2020A1515110219] ; Innovation Pilot Project of Integration of Science, Education and Industry of Shandong Province[2020KJC-CG04] |
| WOS Research Area | Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics |
| WOS Subject | Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied |
| WOS ID | WOS:000720817700002 |
| Publisher | TSINGHUA UNIV PRESS |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/167439 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Hu, Minmin; Wang, Xiaohui |
| Affiliation | 1.Qingdao Univ Sci & Technol, Sch Mat Sci & Engn, Qingdao 266061, Peoples R China 2.Qingdao Univ Sci & Technol, Coll Electromech Engn, Qingdao 266061, Peoples R China 3.City Univ Hong Kong, Dept Mech Engn, Hong Kong 999077, Peoples R China 4.Qingdao Univ Sci & Technol, Coll Chem & Mol Engn, State Key Lab Base Ecochem Engn, Qingdao 266042, Peoples R China 5.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China |
| Recommended Citation GB/T 7714 | Li, Zhenjiang,Dai, Jun,Li, Yiran,et al. Intercalation-deintercalation design in MXenes for high-performance supercapacitors[J]. NANO RESEARCH,2021:9. |
| APA | Li, Zhenjiang.,Dai, Jun.,Li, Yiran.,Sun, Changlong.,Meng, Alan.,...&Wang, Xiaohui.(2021).Intercalation-deintercalation design in MXenes for high-performance supercapacitors.NANO RESEARCH,9. |
| MLA | Li, Zhenjiang,et al."Intercalation-deintercalation design in MXenes for high-performance supercapacitors".NANO RESEARCH (2021):9. |
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