Interlayer engineering of Ti3C2Tx MXenes towards high capacitance supercapacitors

doi:10.1039/c9nr08960h

IMR OpenIR

	Interlayer engineering of Ti3C2Tx MXenes towards high capacitance supercapacitors
	Hu, Minmin 1,2; Cheng, Renfei 1,3; Li, Zhenjiang 2; Hu, Tao 4; Zhang, Hui 5; Shi, Chao 1; Yang, Jinxing 1,3; Cui, Cong 1,3; Zhang, Chaolan 1; Wang, Hailong 6; Fan, Bingbing 6; Wang, Xiaohui 1; Yang, Quan-Hong 7
通讯作者	Wang, Xiaohui(wang@imr.ac.cn) ; Yang, Quan-Hong(qhyangcn@tju.edu.cn)
	2020-01-14
发表期刊	NANOSCALE
ISSN	2040-3364
卷号	12 期号:2 页码:763-771
摘要	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.
资助者	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
收录类别	SCI
语种	英语
资助项目	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研究方向	Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
WOS类目	Chemistry, Multidisciplinary ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied
WOS记录号	WOS:000507642000024
出版者	ROYAL SOC CHEMISTRY
引用统计	被引频次：82[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/136663
专题	中国科学院金属研究所
通讯作者	Wang, Xiaohui; Yang, Quan-Hong
作者单位	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
推荐引用方式 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.