Diacid Molecules Welding Achieved Self-Adaption Layered Structure Ti3C2 MXene toward Fast and Stable Lithium-Ion Storage

doi:10.1021/acssuschemeng.1c04210

	Diacid Molecules Welding Achieved Self-Adaption Layered Structure Ti3C2 MXene toward Fast and Stable Lithium-Ion Storage
	Liu, Mao-Cheng 1,2; Zhang, Bin-Mei 1,2; Zhang, Yu-Shan 1,2; Hu, Yu-Xia 3
刊名	ACS SUSTAINABLE CHEMISTRY & ENGINEERING
	2021-09-27
卷号	9 期号:38 页码:12930-12939
关键词	Ti3C2 enlarging interlayer spacing self-adaption diffusion coefficient lithium-ion storage
ISSN号	2168-0485
DOI	10.1021/acssuschemeng.1c04210
英文摘要	Ti3C2 has been considered as a potential material for lithium-ion storage because of its abundant surface terminals, excellent metal-like conductivity, and modifiable layered structure. However, the Li+ diffusion rate in interlayer is limited by the small interlayer spacing determined by the van der Waals forces. Herein, the dehydration condensation reaction between amino-functionalized Ti3C2 (Ti3C2-NH2) and maleic acid (MA) molecules was utilized to enlarge the interlayer spacing of Ti3C2. The MA molecules were successfully welded into interlayers of Ti3C2 by HN-C.O bonds (namely, chemical welding) and MA chemical welded Ti3C2 (MA-Ti3C2) with self-adaption layered structure were obtained. The MA molecules can contribute double effects to the layered structure of Ti3C2, and they act as chains to remit the volume change during Li+ insertion and serve as pillars to enhance the structure stability during Li+ extraction. The MA-Ti3C2 exhibits an interlayer spacing of 1.28 nm, a fast Li+ diffusion rate (1.4 x 10(-8) to 5.8 x 10(-7) cm(2) s(-1)), and improved Li+ storage performance. The MA-Ti3C2//AC lithium-ion capacitor (LIC) demonstrates an excellent energy density of 102.5 Wh kg(-1) at 200 W kg(-1) and cycle stability with 76.3% at 1.0 A g(-1) after 1000 cycles. This novel chemical welding delivers an effective perspective for modifying the layered structure, enhancing the structure stability, and achieving fast Li+ diffusion and high-rate capability of two-dimension materials.
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Engineering
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000703351200021
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/148880]
专题	材料科学与工程学院
作者单位	1.Lanzhou Univ Technol, Sch Mat Sci & Engn, Lanzhou 730050, Peoples R China; 2.Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Peoples R China; 3.Lanzhou City Univ, Sch Bailie Engn & Technol, Lanzhou 730070, Peoples R China
推荐引用方式 GB/T 7714	Liu, Mao-Cheng,Zhang, Bin-Mei,Zhang, Yu-Shan,et al. Diacid Molecules Welding Achieved Self-Adaption Layered Structure Ti3C2 MXene toward Fast and Stable Lithium-Ion Storage[J]. ACS SUSTAINABLE CHEMISTRY & ENGINEERING,2021,9(38):12930-12939.
APA	Liu, Mao-Cheng,Zhang, Bin-Mei,Zhang, Yu-Shan,&Hu, Yu-Xia.(2021).Diacid Molecules Welding Achieved Self-Adaption Layered Structure Ti3C2 MXene toward Fast and Stable Lithium-Ion Storage.ACS SUSTAINABLE CHEMISTRY & ENGINEERING,9(38),12930-12939.
MLA	Liu, Mao-Cheng,et al."Diacid Molecules Welding Achieved Self-Adaption Layered Structure Ti3C2 MXene toward Fast and Stable Lithium-Ion Storage".ACS SUSTAINABLE CHEMISTRY & ENGINEERING 9.38(2021):12930-12939.