High-Energy-Density Hydrogen-Ion-Rocking-Chair Hybrid Supercapacitors Based on Ti3C2Tx MXene and Carbon Nanotubes Mediated by Redox Active Molecule

doi:10.1021/acsnano.9b01762

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	High-Energy-Density Hydrogen-Ion-Rocking-Chair Hybrid Supercapacitors Based on Ti3C2Tx MXene and Carbon Nanotubes Mediated by Redox Active Molecule
	Hu, Minmin 1,3; Cui, Cong 1,3; Shi, Chao 1; Wu, Zhong-Shuai 2; Yang, Jinxing 1,3; Cheng, Renfei 1,3; Guang, Tianjia 1,3; Wang, Hailong 4; Lu, Hongxia 4; Wang, Xiaohui 1
刊名	ACS NANO
	2019-06-01
卷号	13 期号:6 页码:6899-6905
关键词	two-dimensional material MXene redox-active electrolyte hybrid supercapacitor energy storage
ISSN号	1936-0851
DOI	10.1021/acsnano.9b01762
通讯作者	Wu, Zhong-Shuai(wuzs@dicp.ac.cn) ; Wang, Xiaohui(wang@imr.ac.cn)
英文摘要	MXenes have emerged as promising high-volumetric-capacitance supercapacitor electrode materials, whereas their voltage windows are not wide. This disadvantage prevents MXenes from being made into aqueous symmetric supercapacitors with high energy density. To attain high energy density, constructing asymmetric supercapacitors is a reliable design choice. Here, we propose a strategy to achieve high energy density of hydrogen ion aqueous-based hybrid supercapacitors by integrating a negative electrode of Ti3C2Tx MXene and a positive electrode of redox-active hydroquinone (HQ)/carbon nanotubes. The two electrodes are separated by a Nafion film that is proton permeable in H2SO4 electrolyte. Upon charging/discharging, hydrogen ions shuttle back and forth between the cathode and anode for charge compensation. The proton-induced high capacitance of MXene and HQ, along with complementary working voltage windows, simultaneously enhance the electrochemical performance of the device. Specifically, the hybrid supercapacitors operate in a 1.6 V voltage window and deliver a high energy density of 62 Wh kg(-1), which substantially exceeds those of the state-of-the-art aqueous asymmetric supercapacitors reported so far. Additionally, the device exhibits excellent cycling stability and the all-solid-state planar hybrid supercapacitor displays exceptional flexibility and integration for bipolar cells to boost the capacitance and voltage output. These encouraging results provide the possibility of designing high-energy-density noble-metal-free asymmetric supercapacitors for practical applications.
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] ; National Natural Science Foundation of China[51572259] ; National Natural Science Foundation of China[51872283] ; National Key R&D Program of China[2016YBF0100100] ; National Key R&D Program of China[2016YFA0200200] ; Natural Science Foundation of Liaoning Province[20180510038] ; DICP[DICP ZZBS201708] ; Dalian National Laboratory For Clean Energy (DNL), CAS ; DICPQIBEBT[DICPQIBEBT UN201702] ; DNL Cooperation Fund, CAS[DNL180310] ; DNL Cooperation Fund, CAS[DNL180308]
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Materials Science
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000473248300073
资助机构	Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences (CAS) ; Youth Innovation Promotion Association, CAS ; National Natural Science Foundation of China ; National Key R&D Program of China ; Natural Science Foundation of Liaoning Province ; DICP ; Dalian National Laboratory For Clean Energy (DNL), CAS ; DICPQIBEBT ; DNL Cooperation Fund, CAS
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/134464]
专题	金属研究所_中国科学院金属研究所
通讯作者	Wu, Zhong-Shuai; Wang, Xiaohui
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Liaoning, Peoples R China 2.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, Dalian 116023, Peoples R China 3.Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei 230026, Anhui, Peoples R China 4.Zhengzhou Univ, Sch Mat Sci & Engn, Zhengzhou 450001, Henan, Peoples R China
推荐引用方式 GB/T 7714	Hu, Minmin,Cui, Cong,Shi, Chao,et al. High-Energy-Density Hydrogen-Ion-Rocking-Chair Hybrid Supercapacitors Based on Ti3C2Tx MXene and Carbon Nanotubes Mediated by Redox Active Molecule[J]. ACS NANO,2019,13(6):6899-6905.
APA	Hu, Minmin.,Cui, Cong.,Shi, Chao.,Wu, Zhong-Shuai.,Yang, Jinxing.,...&Wang, Xiaohui.(2019).High-Energy-Density Hydrogen-Ion-Rocking-Chair Hybrid Supercapacitors Based on Ti3C2Tx MXene and Carbon Nanotubes Mediated by Redox Active Molecule.ACS NANO,13(6),6899-6905.
MLA	Hu, Minmin,et al."High-Energy-Density Hydrogen-Ion-Rocking-Chair Hybrid Supercapacitors Based on Ti3C2Tx MXene and Carbon Nanotubes Mediated by Redox Active Molecule".ACS NANO 13.6(2019):6899-6905.