| Interlayer engineering of Ti3C2Tx MXenes towards high capacitance supercapacitors | |
| Hu, Minmin1,2; Cheng, Renfei1,3; Li, Zhenjiang2; Hu, Tao4; Zhang, Hui5; Shi, Chao1; Yang, Jinxing1,3; Cui, Cong1,3; Zhang, Chaolan1; Wang, Hailong6; Fan, Bingbing6; Wang, Xiaohui1; Yang, Quan-Hong7 | |
| Corresponding Author | Wang, Xiaohui(wang@imr.ac.cn) ; Yang, Quan-Hong(qhyangcn@tju.edu.cn) |
| 2020-01-14 | |
| Source Publication | NANOSCALE
 |
| ISSN | 2040-3364 |
| Volume | 12Issue:2Pages:763-771 |
| Abstract | Electrochemical pseudocapacitors store energy via intercalation or electrosorption and faradaic charge transfer with redox reactions. MXenes represent the promising intercalation pseudocapacitive electrode materials for supercapacitors due to their ultrahigh theoretical capacitances. Achieving a high capacitance will greatly advance the large-scale applications as in power grids. However, a rational design concept has not been exploited to achieve the theoretical limit. Here, we show how interlayer engineering helps to achieve the limit. Interlayer engineering in this manner simultaneously creates a broadened yet uniform interlayer spacing - providing a "highway" for fast ion diffusion, and incorporates heteroatoms with lower electronegativity - offering "trucks" (redox active sites) on such a "highway" for speeding charge transfer, enabling high capacitance. Following the concept, through annealing the as-prepared Ti3C2Tx MXene under an ammonia atmosphere, the engineered MXene delivers much improved capacitance with excellent rate performance and cyclability. The overall performance of the engineered MXene outperforms that of all other pseudocapacitive electrode materials. |
| Funding Organization | Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences (CAS) ; Youth Innovation Promotion Association, CAS ; Special Program for Applied Research on Super Computation of the NSFC-Guangdong Joint Fund (the second phase) ; National Natural Science Foundation of China |
| DOI | 10.1039/c9nr08960h |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences (CAS) ; Youth Innovation Promotion Association, CAS[2011152] ; Special Program for Applied Research on Super Computation of the NSFC-Guangdong Joint Fund (the second phase)[U1501501] ; National Natural Science Foundation of China[51972310] |
| WOS Research Area | Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics |
| WOS Subject | Chemistry, Multidisciplinary ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied |
| WOS ID | WOS:000507642000024 |
| Publisher | ROYAL SOC CHEMISTRY |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/136663 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Wang, Xiaohui; Yang, Quan-Hong |
| Affiliation | 1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 2.Qingdao Univ Sci & Technol, Coll Sino German Sci & Technol, Coll Electromech Engn, Key Lab Polymer Mat Adv Mfg Technol Shandong Prov, Qingdao 266061, Peoples R China 3.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 4.Suzhou Univ Sci & Technol, Inst Mat Sci & Devices, Suzhou 215000, Peoples R China 5.Lawrence Berkeley Natl Lab, Energy Geosci Div, Berkeley, CA 94720 USA 6.Zhengzhou Univ, Sch Mat Sci & Engn, Zhengzhou 450001, Peoples R China 7.Tianjin Univ, Sch Chem Engn & Technol, Nanoyang Grp, State Key Lab Chem Engn, Tianjin 300072, Peoples R China |
| Recommended Citation GB/T 7714 | Hu, Minmin,Cheng, Renfei,Li, Zhenjiang,et al. Interlayer engineering of Ti3C2Tx MXenes towards high capacitance supercapacitors[J]. NANOSCALE,2020,12(2):763-771. |
| APA | Hu, Minmin.,Cheng, Renfei.,Li, Zhenjiang.,Hu, Tao.,Zhang, Hui.,...&Yang, Quan-Hong.(2020).Interlayer engineering of Ti3C2Tx MXenes towards high capacitance supercapacitors.NANOSCALE,12(2),763-771. |
| MLA | Hu, Minmin,et al."Interlayer engineering of Ti3C2Tx MXenes towards high capacitance supercapacitors".NANOSCALE 12.2(2020):763-771. |
| Files in This Item: | There are no files associated with this item. | |||||
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment