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Fabrication of (Co,Mn) 3 O 4 /rGO Composite for Lithium Ion Battery Anode by a One-Step Hydrothermal Process with H 2 O 2 as Additive

Binary transition metal oxides have been regarded as one of the most promising candidates for high-performance electrodes in energy storage devices, since they can offer high electrochemical activity and high capacity. Rational designing nanosized metal oxide/carbon composite architectures has been... Full description

Journal Title: PLoS ONE 2016, Vol.11(10)
Main Author: Li, Zuohua
Other Authors: Cui, Yanhui , Chen, Jun , Deng, Lianlin , Wu, Junwei
Format: Electronic Article Electronic Article
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Subjects:
ID: E-ISSN: 1932-6203 ; DOI: 10.1371/journal.pone.0164657 ; PMCID: 5082892 ; PMID: 27788161
Link: pone.0164657.pdf
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recordid: pubmed_central5082892
title: Fabrication of (Co,Mn) 3 O 4 /rGO Composite for Lithium Ion Battery Anode by a One-Step Hydrothermal Process with H 2 O 2 as Additive
format: Article
creator:
  • Li, Zuohua
  • Cui, Yanhui
  • Chen, Jun
  • Deng, Lianlin
  • Wu, Junwei
subjects:
  • Research Article
  • Physical Sciences
  • Engineering And Technology
  • Physical Sciences
  • Engineering And Technology
  • Physical Sciences
  • Physical Sciences
  • Engineering And Technology
  • Research And Analysis Methods
  • Engineering And Technology
ispartof: PLoS ONE, 2016, Vol.11(10)
description: Binary transition metal oxides have been regarded as one of the most promising candidates for high-performance electrodes in energy storage devices, since they can offer high electrochemical activity and high capacity. Rational designing nanosized metal oxide/carbon composite architectures has been proven to be an effective way to improve the electrochemical performance. In this work, the (Co,Mn) 3 O 4 spinel was synthesized and anchored on reduced graphene oxide (rGO) nanosheets using a facile and single hydrothermal step with H 2 O 2 as additive, no further additional calcination required. Analysis showed that this method gives a mixed spinel, i.e. (Co,Mn) 3 O 4 , having 2 + and 3 + Co and Mn ions in both the octahedral and tetrahedral sites of the spinel structure, with a nanocubic morphology roughly 20 nm in size. The nanocubes are bound onto the rGO nanosheet uniformly in a single hydrothermal process, then the as-prepared (Co,Mn) 3 O 4 /rGO composite was characterized as the anode materials for Li-ion battery (LIB). It can deliver 1130.6 mAh g -1 at current density of 100 mA g -1 with 98% of coulombic efficiency after 140 cycles. At 1000 mA g -1 , the capacity can still maintain 750 mAh g -1 , demonstrating excellent rate capabilities. Therefore, the one-step process is a facile and promising method to fabricate metal oxide/rGO composite materials for energy storage applications.
language:
source:
identifier: E-ISSN: 1932-6203 ; DOI: 10.1371/journal.pone.0164657 ; PMCID: 5082892 ; PMID: 27788161
fulltext: fulltext
issn:
  • 1932-6203
  • 19326203
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titleFabrication of (Co,Mn) 3 O 4 /rGO Composite for Lithium Ion Battery Anode by a One-Step Hydrothermal Process with H 2 O 2 as Additive
creatorLi, Zuohua ; Cui, Yanhui ; Chen, Jun ; Deng, Lianlin ; Wu, Junwei
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subjectResearch Article ; Physical Sciences ; Engineering And Technology ; Physical Sciences ; Engineering And Technology ; Physical Sciences ; Physical Sciences ; Engineering And Technology ; Research And Analysis Methods ; Engineering And Technology
descriptionBinary transition metal oxides have been regarded as one of the most promising candidates for high-performance electrodes in energy storage devices, since they can offer high electrochemical activity and high capacity. Rational designing nanosized metal oxide/carbon composite architectures has been proven to be an effective way to improve the electrochemical performance. In this work, the (Co,Mn) 3 O 4 spinel was synthesized and anchored on reduced graphene oxide (rGO) nanosheets using a facile and single hydrothermal step with H 2 O 2 as additive, no further additional calcination required. Analysis showed that this method gives a mixed spinel, i.e. (Co,Mn) 3 O 4 , having 2 + and 3 + Co and Mn ions in both the octahedral and tetrahedral sites of the spinel structure, with a nanocubic morphology roughly 20 nm in size. The nanocubes are bound onto the rGO nanosheet uniformly in a single hydrothermal process, then the as-prepared (Co,Mn) 3 O 4 /rGO composite was characterized as the anode materials for Li-ion battery (LIB). It can deliver 1130.6 mAh g -1 at current density of 100 mA g -1 with 98% of coulombic efficiency after 140 cycles. At 1000 mA g -1 , the capacity can still maintain 750 mAh g -1 , demonstrating excellent rate capabilities. Therefore, the one-step process is a facile and promising method to fabricate metal oxide/rGO composite materials for energy storage applications.
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descriptionBinary transition metal oxides have been regarded as one of the most promising candidates for high-performance electrodes in energy storage devices, since they can offer high electrochemical activity and high capacity. Rational designing nanosized metal oxide/carbon composite architectures has been proven to be an effective way to improve the electrochemical performance. In this work, the (Co,Mn) 3 O 4 spinel was synthesized and anchored on reduced graphene oxide (rGO) nanosheets using a facile and single hydrothermal step with H 2 O 2 as additive, no further additional calcination required. Analysis showed that this method gives a mixed spinel, i.e. (Co,Mn) 3 O 4 , having 2 + and 3 + Co and Mn ions in both the octahedral and tetrahedral sites of the spinel structure, with a nanocubic morphology roughly 20 nm in size. The nanocubes are bound onto the rGO nanosheet uniformly in a single hydrothermal process, then the as-prepared (Co,Mn) 3 O 4 /rGO composite was characterized as the anode materials for Li-ion battery (LIB). It can deliver 1130.6 mAh g -1 at current density of 100 mA g -1 with 98% of coulombic efficiency after 140 cycles. At 1000 mA g -1 , the capacity can still maintain 750 mAh g -1 , demonstrating excellent rate capabilities. Therefore, the one-step process is a facile and promising method to fabricate metal oxide/rGO composite materials for energy storage applications.
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abstractBinary transition metal oxides have been regarded as one of the most promising candidates for high-performance electrodes in energy storage devices, since they can offer high electrochemical activity and high capacity. Rational designing nanosized metal oxide/carbon composite architectures has been proven to be an effective way to improve the electrochemical performance. In this work, the (Co,Mn) 3 O 4 spinel was synthesized and anchored on reduced graphene oxide (rGO) nanosheets using a facile and single hydrothermal step with H 2 O 2 as additive, no further additional calcination required. Analysis showed that this method gives a mixed spinel, i.e. (Co,Mn) 3 O 4 , having 2 + and 3 + Co and Mn ions in both the octahedral and tetrahedral sites of the spinel structure, with a nanocubic morphology roughly 20 nm in size. The nanocubes are bound onto the rGO nanosheet uniformly in a single hydrothermal process, then the as-prepared (Co,Mn) 3 O 4 /rGO composite was characterized as the anode materials for Li-ion battery (LIB). It can deliver 1130.6 mAh g -1 at current density of 100 mA g -1 with 98% of coulombic efficiency after 140 cycles. At 1000 mA g -1 , the capacity can still maintain 750 mAh g -1 , demonstrating excellent rate capabilities. Therefore, the one-step process is a facile and promising method to fabricate metal oxide/rGO composite materials for energy storage applications.
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date2016-10-27