High-loading Fe2O3/SWNT composite films for lithium-ion battery   applications

doi:10.1088/1361-6528/aa7a81

CORC > 北京大学 > 工学院

	High-loading Fe2O3/SWNT composite films for lithium-ion battery applications
	Wang, Ying ; Guo, Jiahui ; Li, Li ; Ge, Yali ; Li, Baojun ; Zhang, Yingjiu ; Shang, Yuanyuan ; Cao, Anyuan
刊名	NANOTECHNOLOGY
	2017
关键词	carbon nanotubes high-loading Fe2O3 residual catalyst lithium ion battery CARBON NANOTUBES ANODE MATERIAL ELECTROCHEMICAL PERFORMANCE STORAGE NANOPARTICLES ELECTRODES ALPHA-FE2O3 GRAPHENE NANOCOMPOSITES NANOFLAKES
DOI	10.1088/1361-6528/aa7a81
英文摘要	Single-walled carbon nanotube (SWNT) films are a potential candidate as porous conductive electrodes for energy conversion and storage; tailoring the loading and distribution of active materials grafted on SWNTs is critical for achieving maximum performance. Here, we show that as-synthesized SWNT samples containing residual Fe catalyst can be directly converted to Fe2O3/SWNT composite films by thermal annealing in air. The mass loading of Fe2O3 nanoparticles is tunable from 63 wt% up to 96 wt%, depending on the annealing temperature (from 450 degrees C to 600 degrees C), while maintaining the porous network structure. Interconnected SWNT networks containing high-loading active oxides lead to synergistic effect as an anode material for lithium ion batteries. The performance is improved consistently with increasing Fe2O3 loading. As a result, our Fe2O3/SWNT composite films exhibit a high reversible capacity (1007.1 mA h g(-1) at a current density of 200 mA g(-1)), excellent rate capability (384.9 mA h g(-1) at 5 A g(-1)) and stable cycling performance with the discharge capacity up to 567.1 mA h g(-1) after 600 cycles at 2 A g(-1). The high-loading Fe2O3/SWNT composite films have potential applications as nanostructured electrodes for various energy devices such as supercapacitors and Li-ion batteries.; National Natural Science Foundation under grants of China [NSFC 51502267]; Outstanding Young Talent Research Fund of Zhengzhou University [1521317003]; Henan province science and technology research project [162102410069]; Certificate of Postdoctoral Research Sponsorship Henan Province [2015009]; National Key Research and Development Program of China [2016YFE0127300]; SCI(E); ARTICLE; 34; 28
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/471383]
专题	工学院
推荐引用方式 GB/T 7714	Wang, Ying,Guo, Jiahui,Li, Li,et al. High-loading Fe2O3/SWNT composite films for lithium-ion battery applications[J]. NANOTECHNOLOGY,2017.
APA	Wang, Ying.,Guo, Jiahui.,Li, Li.,Ge, Yali.,Li, Baojun.,...&Cao, Anyuan.(2017).High-loading Fe2O3/SWNT composite films for lithium-ion battery applications.NANOTECHNOLOGY.
MLA	Wang, Ying,et al."High-loading Fe2O3/SWNT composite films for lithium-ion battery applications".NANOTECHNOLOGY (2017).