Partial Atomic Tin Nanocomplex Pillared Few-Layered Ti3C2Tx MXenes for Superior Lithium-Ion Storage
作者:Zhang, SL (Zhang, Shunlong)[ 1 ] ; Ying, HJ (Ying, Hangjun)[ 1 ] ; Yuan, B (Yuan, Bin)[ 2,3 ] ; Hu, RZ (Hu, Renzong)[ 2,3 ] ; Han, WQ (Han, Wei-Qiang)[ 1 ]
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NANO-MICRO LETTERS
卷: 12 期: 1
文献号: 78
DOI: 10.1007/s40820-020-0405-7
出版年: MAR 25 2020
文献类型:Article
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摘要
MXenes have attracted great interest in various fields, and pillared MXenes open a new path with larger interlayer spacing. However, the further study of pillared MXenes is blocked at multilayered state due to serious restacking phenomenon of few-layered MXene nanosheets. In this work, for the first time, we designed a facile NH4+ method to fundamentally solve the restacking issues of MXene nanosheets and succeeded in achieving pillared few-layered MXene. Sn nanocomplex pillared few-layered Ti3C2Tx (STCT) composites were synthesized by introducing atomic Sn nanocomplex into interlayer of pillared few-layered Ti3C2Tx MXenes via pillaring technique. The MXene matrix can inhibit Sn nanocomplex particles agglomeration and serve as conductive network. Meanwhile, the Sn nanocomplex particles can further open the interlayer spacing of Ti3C2Tx during lithiation/delithiation processes and therefore generate extra capacity. Benefiting from the pillar effect, the STCT composites can maintain 1016 mAh g(-1) after 1200 cycles at 2000 mA g(-1) and deliver a stable capacity of 680 mAh g(-1) at 5 A g(-1), showing one of the best performances among MXene-based composites. This work will provide a new way for the development of pillared MXenes and their energy storage due to significant breakthrough from multilayered state to few-layered one.
关键词
作者关键词:Pillared MXene; Few-layered MXene; Tin nanocomplex; Lithium-ion storage
KeyWords Plus:HIGH-PERFORMANCE LITHIUM; NITROGEN-DOPED GRAPHENE; LI-ION; VOLUMETRIC CAPACITY; SNO2 NANOCRYSTALS; TITANIUM CARBIDE; ANODE MATERIALS; NANOSHEETS; INTERCALATION; FILMS
作者信息
通讯作者地址: Han, WQ (通讯作者)
显示更多Zhejiang Univ, Sch Mat Sci & Engn, Hangzhou 310027, Zhejiang, Peoples R China.
地址:
显示更多[ 1 ] Zhejiang Univ, Sch Mat Sci & Engn, Hangzhou 310027, Zhejiang, Peoples R China
显示更多[ 2 ] South China Univ Technol, Sch Mat Sci & Engn, Guangzhou 510641, Guangdong, Peoples R China
[ 3 ] Key Lab Adv Energy Storage Mat Guangdong Prov, Guangzhou 510641, Guangdong, Peoples R China
电子邮件地址:hanwq@zju.edu.cn
基金资助致谢
基金资助机构显示详情授权号
National Natural Science Foundation of China
51901206
51822104
Training Program of Major Basic Research Project of Provincial Natural Science Foundation of Guangdong
2017B030308001
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出版商
SHANGHAI JIAO TONG UNIV PRESS, SHANGHAI JIAO TONG UNIV, 800 DONGCHUAN RD, SHANGHAI, 200240, PEOPLES R CHINA
期刊信息
Impact Factor (影响因子): Journal Citation Reports
类别 / 分类
研究方向:Science & Technology - Other Topics; Materials Science; Physics
Web of Science 类别:Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied