Diamine molecules double lock-link structured graphene oxide sheets for high-performance sodium ions storage

doi:10.1016/j.ensm.2020.08.021

CORC > 兰州理工大学 > 兰州理工大学 > 省部共建有色金属先进加工与再利用国家重点实验室

	Diamine molecules double lock-link structured graphene oxide sheets for high-performance sodium ions storage
	Zhang, Yu-Shan 1,6; Zhang, Bin-Mei 1,6; Hu, Yu-Xia 7; Li, Jun 1,6; Lu, Chun 1,6; Liu, Ming-Jin 2,3,4; Wang, Kuangye 2,3,4; Kong, Ling-Bin 1,6; Zhao, Chen-Zi 5; Niu, Wen-Jun 1,6
	2021
关键词	Amines Condensation reactions Costs Graphite Lithium-ion batteries Metal ions Sodium Storage (materials)Capacity retention Effective approaches Enhanced stability Improved structures Interlayer spacings Layered Structures Specific discharge capacity Storage performance
卷号	34
DOI	10.1016/j.ensm.2020.08.021
页码	45-52
英文摘要	Graphite has been commercialized as a material of lithium ions batteries because of its abundant source, low cost and excellent conductivity while the small interlayer spacing of graphite limits its application for Na+ insertion/extraction. Herein, an emerging and effective approach—chain-like H2N(CH2)xNH2 locked between graphene oxide (GO) sheets to expand the interlayer spacing of graphene with enhanced stability of layered structure was demonstrated by a dehydration condensation reaction. The as-obtained H2N(CH2)xNH2, which can link GO (xDM-GO), exhibits a lock-link structure, resulting in expanded interlayer spacing, with which the excellent Na+ storage performance with a high specific discharge capacity of 158.1 mAh g−1 at 0.1 A g−1 and outstanding capacity retention of 82.2% at a current density of 1 A g−1 can be achieved. The effects of interlayer spacing on Na+ diffusion coefficient and the rate capability were investigated, for which 0.95 nm is the most suitable interlayer spacing for the Na+ insertion/extraction. The novel strategy demonstrates an effective way to controllably tune the interlayer spacing with the improved structure stability of GO, resulting in the best Na+ insertion/extraction behavior with the excellent Na+ storage performance. © 2020
会议录	Energy Storage Materials
会议录出版者	Elsevier B.V., Netherlands
语种	英语
ISSN号	2405-8297
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Materials Science
WOS记录号	WOS:000598783200005
内容类型	会议论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/132703]
专题	省部共建有色金属先进加工与再利用国家重点实验室材料科学与工程学院理学院
作者单位	1.State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metals, Lanzhou University of Technology, 287 Langongping Road, Lanzhou; 730050, China; 2.Department of Materials Science and Engineering, National Tsing Hua University, Hsinchu; 30013, Taiwan; 3.Department of Physics, National Sun Yat-Sen University, Kaohsiung; 80424, Taiwan; 4.Frontier Research Center on Fundamental and Applied Sciences of Matters, National Tsing Hua University, Hsinchu; 30013, Taiwan; 5.Beijing Key Laboratory of Green Chemical Reaction Engineering and Technology, Department of Chemical Engineering, Tsinghua University, Beijing; 100084, China 6.School of Materials Science and Engineering, Lanzhou University of Technology, 287 Langongping Road, Lanzhou; 730050, China; 7.School of Bailie Engineering &Technology, Lanzhou City University, Lanzhou; 730070, China;
推荐引用方式 GB/T 7714	Zhang, Yu-Shan,Zhang, Bin-Mei,Hu, Yu-Xia,et al. Diamine molecules double lock-link structured graphene oxide sheets for high-performance sodium ions storage[C]. 见:.