Multi-heteroatom-doped dual carbon-confined FeO nanospheres as high-capacity and long-life anode materials for lithium/sodium ion batteries.

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ID: 89643
2020
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Abstract
The lithium/sodium-ion storage properties of transition metal oxides often undergo startling volume variation and poor electrical conductivity. Herein, N, P and S doped dual carbon-confined FeO nanospheres (FeO@C@G) are prepared by the multi-heteroatom-doped dual carbon-confined strategy. The first carbon layer results from multi-heteroatom-containing polymer derived N, P and S doped carbon to form FeO@doped carbon core-shell nanostructure. And the second carbon layer results from the further encapsulated reduced graphene oxide (rGO) to form FeO@doped carbon@graphene 3D architecture (FeO@C@G). As expected, the resulting FeO@C@G can be served as the universal anode materials towards lithium/sodium-ion batteries (LIBs/SIBs). Interestingly, FeO@C@G delivers higher reversible capacity of 919 mAh g at 0.1 A g for LIBs. As for SIBs, FeO@C@G also shows a high reversible capacity of 180 mAh g after 600 cycles at 0.1 A g. Furthermore, the electrochemical reaction kinetics in LIBs/SIBs are investigated and Li full cells are also assembled to demonstrate its practical application.
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tao2020multiheteroatomdopedjournal Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Tao, Xisheng;Li, Yan;Wang, Heng-Guo;Lv, Xiaoling;Li, Yanhui;Xu, Dan;Jiang, Ying;Meng, Yuan;
Journal Journal of colloid and interface science
Year 2020
DOI
S0021-9797(20)30020-5
URL
Keywords
sodium ion batteries lithium ion batteries dual carbon fe(3)o(4) multi-heteroatom-doping

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