Interlayer engineering of Ti3C2Tx MXenes towards high capacitance supercapacitors

doi:10.1039/c9nr08960h

CORC > 金属研究所 > 中国科学院金属研究所

	Interlayer engineering of Ti3C2Tx MXenes towards high capacitance supercapacitors
	Hu, Minmin 3,4; Cheng, Renfei 3,5; Li, Zhenjiang 4; Hu, Tao 6; Zhang, Hui 1; Shi, Chao 3; Yang, Jinxing 3,5; Cui, Cong 3,5; Zhang, Chaolan 3; Wang, Hailong 7
刊名	NANOSCALE
	2020-01-14
卷号	12 期号:2 页码:763-771
ISSN号	2040-3364
DOI	10.1039/c9nr08960h
通讯作者	Wang, Xiaohui(wang@imr.ac.cn) ; Yang, Quan-Hong(qhyangcn@tju.edu.cn)
英文摘要	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
语种	英语
出版者	ROYAL SOC CHEMISTRY
WOS记录号	WOS:000507642000024
资助机构	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
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/136665]
专题	金属研究所_中国科学院金属研究所
通讯作者	Wang, Xiaohui; Yang, Quan-Hong
作者单位	1.Lawrence Berkeley Natl Lab, Energy Geosci Div, Berkeley, CA 94720 USA 2.Tianjin Univ, Sch Chem Engn & Technol, Nanoyang Grp, State Key Lab Chem Engn, Tianjin 300072, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 4.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 5.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 6.Suzhou Univ Sci & Technol, Inst Mat Sci & Devices, Suzhou 215000, Peoples R China 7.Zhengzhou Univ, Sch Mat Sci & Engn, Zhengzhou 450001, 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.