Green synthesis of mesoporous ZnFe2O4/C composite microspheres as superior anode materials for lithium-ion batteries

The commercialized LIBs employing graphite as anodes currently suffer a series of problems from the safety, theoretical capacity (372 mAh g-1) and rate capability. Herein, self-assembly mesoporous Zn ferrite (ZnFe2O4) microsphere embedded into carbon network has been synthesized by a facile method i...

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Main Authors: Yao, L., Hou, X., Hu, S., Wang, J., Li, M., Su, Chao, Tade, Moses, Shao, Zongping, Liu, X.
Format: Journal Article
Published: Elsevier SA 2014
Online Access:http://hdl.handle.net/20.500.11937/19054
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author Yao, L.
Hou, X.
Hu, S.
Wang, J.
Li, M.
Su, Chao
Tade, Moses
Shao, Zongping
Liu, X.
author_facet Yao, L.
Hou, X.
Hu, S.
Wang, J.
Li, M.
Su, Chao
Tade, Moses
Shao, Zongping
Liu, X.
author_sort Yao, L.
building Curtin Institutional Repository
collection Online Access
description The commercialized LIBs employing graphite as anodes currently suffer a series of problems from the safety, theoretical capacity (372 mAh g-1) and rate capability. Herein, self-assembly mesoporous Zn ferrite (ZnFe2O4) microsphere embedded into carbon network has been synthesized by a facile method in the presence of citric acid. The Zn ferrites as an anode material with novel structure demonstrate superior electrochemical performance, with enhanced specific reversible capacity (~1100 mAh g-1 at the specific current of 0.05 A g-1 after 100 cycles), excellent rate capability (more than 500 mAh g-1 even at the specific current of 1.1 A g-1) and good cycleability with little fading (~97.6% after 100 cycles). The excellent cycling performance is associated with the loose Zn ferrite microsphere with numerous mesopores embedded into the carbon network, which can accommodate the severe mechanism strains and provides good electrical contact and conductivity. The superior electrochemical performance may facilitate ZnFe2O4 to be a promising alternative anode in lithium ion battery.
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institution Curtin University Malaysia
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last_indexed 2025-11-14T07:28:39Z
publishDate 2014
publisher Elsevier SA
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spelling curtin-20.500.11937-190542017-09-13T15:57:25Z Green synthesis of mesoporous ZnFe2O4/C composite microspheres as superior anode materials for lithium-ion batteries Yao, L. Hou, X. Hu, S. Wang, J. Li, M. Su, Chao Tade, Moses Shao, Zongping Liu, X. The commercialized LIBs employing graphite as anodes currently suffer a series of problems from the safety, theoretical capacity (372 mAh g-1) and rate capability. Herein, self-assembly mesoporous Zn ferrite (ZnFe2O4) microsphere embedded into carbon network has been synthesized by a facile method in the presence of citric acid. The Zn ferrites as an anode material with novel structure demonstrate superior electrochemical performance, with enhanced specific reversible capacity (~1100 mAh g-1 at the specific current of 0.05 A g-1 after 100 cycles), excellent rate capability (more than 500 mAh g-1 even at the specific current of 1.1 A g-1) and good cycleability with little fading (~97.6% after 100 cycles). The excellent cycling performance is associated with the loose Zn ferrite microsphere with numerous mesopores embedded into the carbon network, which can accommodate the severe mechanism strains and provides good electrical contact and conductivity. The superior electrochemical performance may facilitate ZnFe2O4 to be a promising alternative anode in lithium ion battery. 2014 Journal Article http://hdl.handle.net/20.500.11937/19054 10.1016/j.jpowsour.2014.02.055 Elsevier SA restricted
spellingShingle Yao, L.
Hou, X.
Hu, S.
Wang, J.
Li, M.
Su, Chao
Tade, Moses
Shao, Zongping
Liu, X.
Green synthesis of mesoporous ZnFe2O4/C composite microspheres as superior anode materials for lithium-ion batteries
title Green synthesis of mesoporous ZnFe2O4/C composite microspheres as superior anode materials for lithium-ion batteries
title_full Green synthesis of mesoporous ZnFe2O4/C composite microspheres as superior anode materials for lithium-ion batteries
title_fullStr Green synthesis of mesoporous ZnFe2O4/C composite microspheres as superior anode materials for lithium-ion batteries
title_full_unstemmed Green synthesis of mesoporous ZnFe2O4/C composite microspheres as superior anode materials for lithium-ion batteries
title_short Green synthesis of mesoporous ZnFe2O4/C composite microspheres as superior anode materials for lithium-ion batteries
title_sort green synthesis of mesoporous znfe2o4/c composite microspheres as superior anode materials for lithium-ion batteries
url http://hdl.handle.net/20.500.11937/19054