Design of kinetic well-matched Mo2C nanoparticles anchored into 3D hierarchical porous carbon towards high-rate sodium ion storage

doi:10.1016/j.electacta.2021.137860

	Design of kinetic well-matched Mo2C nanoparticles anchored into 3D hierarchical porous carbon towards high-rate sodium ion storage
	Zhang, Dong-Ting 1,3; Liu, Mao-Cheng 1,3; Li, Jun 1,3; Zhang, Yu-Shan 1,3; Zhang, Bing-Mei 1,3; Lu, Chun 1,3; Hu, Yu-Xia 5; Wu, Kai-Peng 2,4; Kong, Ling-Bin 1,3
刊名	ELECTROCHIMICA ACTA
	2021-03-10
卷号	372 页码:-
关键词	Anodes Cathodes Composite structures Crosslinking Electrochemical electrodes Metal ions Nanoparticles Porous materials Reaction kinetics Redox reactions Sodium Sodium chloride Complementary features Diffusion kinetics Electrical double-layer capacitances Electrochemical measurements Hierarchical porous carbons Hierarchical porous structures Large specific surface areas Pseudocapacitive behavior
ISSN号	0013-4686
DOI	10.1016/j.electacta.2021.137860
英文摘要	Sodium ion capacitors (SICs) have attracted considerable attentions since it is integrating the complementary features of both high energy and power densities. One of the most crucial tasks for develop highly efficient SICs is to increase the faradaic Na(+ )redox kinetics from the battery-type anode to match the electrical double-layer capacitance-type cathode. In this work, Mo2C nanoparticles uniformly anchored into cross-linked hierarchical porous carbon (HPC-Mo2C) have been produced by a water-soluble NaCl template strategy. The as-obtained HPC-Mo2C composite shows a large specific surface area of 385.6 m(2 )g(-1) with well distributed micro-meso-macropores structure, delivering a superior rate capability (108.2 mAh g(-1 )at 5 A g(-1)) and robust long-term cycling of 190.6 mAh g(-1) at 1 A g(-1 )after 2500 cycles. Electrochemical measurements illustrate that the Mo2C nanoparticles uniformly anchored into cross-linked hierarchical porous structure can accelerate fast Na+ diffusion kinetics toward excellent rate capacity and increase the pseudocapacitive behavior for the redox reaction. The SIC composed of HPC-Mo2C as anode and activated carbon (AC) as cathode delivers an impressive energy density of 130.2 Wh kg(-1) and ultra-high power density of 30,000 W kg(-1) , as well as an unprecedented cycling stability of 88.9% retention after 10,000 cycles with a potential range of 0-4 V. This work may cater to the requirements for rationale kinetic matching electrode for the advanced SICs. (C) 2021 Elsevier Ltd. All rights reserved.
WOS研究方向	Electrochemistry
语种	英语
出版者	Elsevier Ltd
WOS记录号	WOS:000619728100014
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/147271]
专题	材料科学与工程学院理学院
作者单位	1.Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Peoples R China; 2.Southwest Univ Sci & Technol, State Key Lab Environm Friendly Energy Mat, Mianyang 621010, Sichuan, Peoples R China 3.Lanzhou Univ Technol, Sch Mat Sci & Engn, Lanzhou 730050, Peoples R China; 4.Sichuan Univ, Coll Mat Sci & Engn, Chengdu 610064, Peoples R China; 5.Lanzhou City Univ, Sch Bailie Engn & Technol, Lanzhou 730070, Peoples R China;
推荐引用方式 GB/T 7714	Zhang, Dong-Ting,Liu, Mao-Cheng,Li, Jun,et al. Design of kinetic well-matched Mo2C nanoparticles anchored into 3D hierarchical porous carbon towards high-rate sodium ion storage[J]. ELECTROCHIMICA ACTA,2021,372:-.
APA	Zhang, Dong-Ting.,Liu, Mao-Cheng.,Li, Jun.,Zhang, Yu-Shan.,Zhang, Bing-Mei.,...&Kong, Ling-Bin.(2021).Design of kinetic well-matched Mo2C nanoparticles anchored into 3D hierarchical porous carbon towards high-rate sodium ion storage.ELECTROCHIMICA ACTA,372,-.
MLA	Zhang, Dong-Ting,et al."Design of kinetic well-matched Mo2C nanoparticles anchored into 3D hierarchical porous carbon towards high-rate sodium ion storage".ELECTROCHIMICA ACTA 372(2021):-.