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Confined space self-propagating room temperature synthesis of carbon-encapsulated Fe3O4 nanocrystals and its lithium storage performance
Liu BY1; Ke SY1; Lin JW2; Zhang YL1; Zhang XQ1; Yan SC1; Yu Q1; Shao YF(邵颖峰)3
Source PublicationNanotechnology
2019-08-12
Volume30Issue:43Pages:10.1088/1361-6528/ab3312
ISSN0957-4484
Abstract

Abstract A self-propagating reaction between ferrocene and iron nitrate nonahydrate that is initiated at room temperature is discovered. Amorphous carbon-encapsulated Fe3O4 nanocrystals (Fe3O4@C) can be one-step prepared in an autoclave through this reaction. The equiaxed Fe3O4 nanocrystals have typical dimensions in the range of 5–60 nm with a median size of 24.1 nm, and their weight percent is up to 82.3%. The course of the reaction is recorded, and the formation mechanism of Fe3O4@C with the core–shell structure is proposed. The scaling-up synthesis is also achieved, and 52.1 g of the Fe3O4@C can be obtained in a single batch. The shock wave appeared in the fast gas release self-propagating reaction in confined space plays a decisive role in the preparation of homogeneous Fe3O4@C with a core–shell structure. The Fe3O4@C anode shows excellent capacity retention with a high specific capacity of 494 mAh g?1 at 1 A g?1 in the 200th cycle.

Keywordcarbon-encapsulated Fe3O4 nanocrystals core–shell self-propagating synthesis lithium-ion batteries
DOI10.1088/1361-6528/ab3312
Indexed BySCI ; EI
Language英语
WOS IDIOP:0957-4484-30-43-ab3312
Classification二类/Q1
Ranking5+
Citation statistics
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/79704
Collection非线性力学国家重点实验室
Affiliation1.College of Ocean Science and Engineering, Shanghai Maritime University, Shanghai 201306, People’s Republic of China
2.College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai 201306, People’s Republic of China
3.State Key Laboratory of Nonlinear Mechanics, Institute of Mechanics, Beijing 100190, People’s Republic of China
Recommended Citation
GB/T 7714
Liu BY,Ke SY,Lin JW,et al. Confined space self-propagating room temperature synthesis of carbon-encapsulated Fe3O4 nanocrystals and its lithium storage performance[J]. Nanotechnology,2019,30(43):10.1088/1361-6528/ab3312.
APA Liu BY.,Ke SY.,Lin JW.,Zhang YL.,Zhang XQ.,...&Shao YF.(2019).Confined space self-propagating room temperature synthesis of carbon-encapsulated Fe3O4 nanocrystals and its lithium storage performance.Nanotechnology,30(43),10.1088/1361-6528/ab3312.
MLA Liu BY,et al."Confined space self-propagating room temperature synthesis of carbon-encapsulated Fe3O4 nanocrystals and its lithium storage performance".Nanotechnology 30.43(2019):10.1088/1361-6528/ab3312.
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