Synthesis of highly crumpled carbon-graphene composite for adsorption-controlled potassium-ion anode materials

doi:10.1016/j.jelechem.2022.116416

CORC > 兰州理工大学 > 兰州理工大学 > 石油化工学院

	Synthesis of highly crumpled carbon-graphene composite for adsorption-controlled potassium-ion anode materials
	Xu, Ying-Ge 1; Liu, Jian 1; Kong, Ling-Bin 1,2
刊名	JOURNAL OF ELECTROANALYTICAL CHEMISTRY
	2022-07-15
卷号	917
关键词	Reduced graphene oxide Pseudocapacitive effect Carbon materials Anode materials Potassium-ion batteries
ISSN号	1572-6657
DOI	10.1016/j.jelechem.2022.116416
英文摘要	Potassium-ion batteries (PIBs) are very suitable for large-scale energy storage due to their extensive resources. Nevertheless, the anodes of PIBs suffer from larger volume expansion, sluggish reaction kinetics, and tardy ion diffusion rate due to the larger ion radius and molecular weight of potassium ions. In order to solve above issues, we synthesized a carbon-graphene composite using a physical mixing strategy, which is different from previous heteroatom doping methods. The F127 is used as a soft template to prepare a mixture of carbon materials (named as FRC). The unique structure of FRC consists of a RGO with corrugated surface and F127-derived hard carbon with a lot of holes. Through the half-cell test, FRC delivers a high reversible specific capacity of 476.2 mA h g(-1) at 100 mA g(-1) after 200 cycles and excellent rate capacity (323.7 mA h g(-1) at 5000 mA g(-1)). Systematic characterizations demonstrate that F127 can not only be used as an intermediate separator between RGO layers to prevent RGO agglomeration, but also increase the surface wrinkle and improve the porosity of RGO, so that the electrolyte can quickly penetrate, which are beneficial for the pseudocapacitive effect and diffusion coefficient.
WOS研究方向	Chemistry ; Electrochemistry
语种	英语
出版者	ELSEVIER SCIENCE SA
WOS记录号	WOS:000807740500009
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/158825]
专题	石油化工学院材料科学与工程学院
作者单位	1.Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Peoples R China; 2.Lanzhou Univ Technol, Sch Mat Sci & Engn, Lanzhou 730050, Peoples R China
推荐引用方式 GB/T 7714	Xu, Ying-Ge,Liu, Jian,Kong, Ling-Bin. Synthesis of highly crumpled carbon-graphene composite for adsorption-controlled potassium-ion anode materials[J]. JOURNAL OF ELECTROANALYTICAL CHEMISTRY,2022,917.
APA	Xu, Ying-Ge,Liu, Jian,&Kong, Ling-Bin.(2022).Synthesis of highly crumpled carbon-graphene composite for adsorption-controlled potassium-ion anode materials.JOURNAL OF ELECTROANALYTICAL CHEMISTRY,917.
MLA	Xu, Ying-Ge,et al."Synthesis of highly crumpled carbon-graphene composite for adsorption-controlled potassium-ion anode materials".JOURNAL OF ELECTROANALYTICAL CHEMISTRY 917(2022).