Calcination - Assisted Hydrothermal Synthesis and Electrochemical Performance of Fe3O4/HSFC Nanocomposites as Li-ion Batteries Anodes
Hydrothermal sisal fiber carbon (HSFC) was synthesized by a two-step hydrothermal modification with sisal fiber as raw material. Then Fe3O4/HSFC nanocomposites were prepared by combining HSFC with nanostructures of Fe3O4 via a hydrothermal process assisted by calcinating. The structure and morpholog...
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Published in | International journal of electrochemical science Vol. 12; no. 11; pp. 10421 - 10432 |
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Main Authors | , , , , , , |
Format | Journal Article |
Language | English |
Published |
Elsevier B.V
01.11.2017
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Subjects | |
Online Access | Get full text |
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Summary: | Hydrothermal sisal fiber carbon (HSFC) was synthesized by a two-step hydrothermal modification with sisal fiber as raw material. Then Fe3O4/HSFC nanocomposites were prepared by combining HSFC with nanostructures of Fe3O4 via a hydrothermal process assisted by calcinating. The structure and morphology of Fe3O4/HSFC nanocomposites were characterized by powder X-ray diffraction and scanning electron microscopy(SEM), and their electrochemical performances were tested by constant current charge-discharge tests. The first coulomb efficiency of resulted Fe3O4/HSFC nanocomposite is 64% at the current density of 50mAg-1 and the calcination temperature of 600°C. The reversible capacity can maintain 610mAhg-1and 480mAhg-1 at the current densities of 50 and 500mAg-1 after 50 cycles, respectively. The results show that modification with Fe3O4 nanoparticles is an effective method to improve the electrochemical performances of the HSFC-based materials. |
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ISSN: | 1452-3981 1452-3981 |
DOI: | 10.20964/2017.11.52 |