Biomass-Derived 3D Interconnected Porous Carbon-Encapsulated Nano-FeS2 for High-Performance Lithium-Ion Batteries

doi:10.1021/acsaem.0c00537

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	Biomass-Derived 3D Interconnected Porous Carbon-Encapsulated Nano-FeS2 for High-Performance Lithium-Ion Batteries
	Xu, Xin; Ying, Hangjun; Zhang, Shunlong; Meng, Zhen; Yan, Xufeng; Han, Wei-Qiang
刊名	ACS APPLIED ENERGY MATERIALS
	2020
卷号	3 期号:6 页码:5589-5596
关键词	FREESTANDING ANODE CATHODE MATERIALS FES2 STARCH MECHANISM RHIZOME PYRITE ADSORPTION FES2-AT-C STORAGE
DOI	10.1021/acsaem.0c00537
英文摘要	The application of earth-abundant materials is strategically important for industrial manufacture. Utilizing the gelatinization and metallic complexation properties of lotus rhizome starch, a FeS2/lotus rhizome starch-derived carbon (LRSC) composite was prepared with ultrafine FeS2 particles encapsulated in hierarchically porous carbon. The abundant interconnected macropores and micropores in the LRSC can provide diffusion channels for ions and sufficient space for the volume change of FeS2. Besides, a continuous interconnected carbon matrix remarkably enhances the electrical conductivity of FeS2. Therefore, the hierarchically porous carbon-stabilized FeS2 exhibits significantly improved cycling performance compared to pristine FeS2 and FeS2 combined with glucose-pyrolyzed carbon. The electrochemical capacity of the FeS2/LRSC composite is 923.5 mA h g(-1) with a capacity retention of 90.2% after 100 cycles at 0.5 A g(-1), which is much higher than that of pristine FeS2 (54.6%) and FeS2/C (32.6%). This work offers an approach for designing cost-effective and high-performance electrodes for lithium-ion batteries.
学科主题	Chemistry ; Energy & Fuels ; Materials Science
内容类型	期刊论文
源URL	[http://ir.nimte.ac.cn/handle/174433/20706]
专题	2020专题
作者单位	Han, WQ (corresponding author), Zhejiang Univ, Sch Mat Sci & Engn, Hangzhou 310027, Peoples R China.
推荐引用方式 GB/T 7714	Xu, Xin,Ying, Hangjun,Zhang, Shunlong,et al. Biomass-Derived 3D Interconnected Porous Carbon-Encapsulated Nano-FeS2 for High-Performance Lithium-Ion Batteries[J]. ACS APPLIED ENERGY MATERIALS,2020,3(6):5589-5596.
APA	Xu, Xin,Ying, Hangjun,Zhang, Shunlong,Meng, Zhen,Yan, Xufeng,&Han, Wei-Qiang.(2020).Biomass-Derived 3D Interconnected Porous Carbon-Encapsulated Nano-FeS2 for High-Performance Lithium-Ion Batteries.ACS APPLIED ENERGY MATERIALS,3(6),5589-5596.
MLA	Xu, Xin,et al."Biomass-Derived 3D Interconnected Porous Carbon-Encapsulated Nano-FeS2 for High-Performance Lithium-Ion Batteries".ACS APPLIED ENERGY MATERIALS 3.6(2020):5589-5596.