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Novel 2D Layered Molybdenum Ditelluride Encapsulated in Few‐Layer Graphene as High‐Performance Anode for Lithium‐Ion Batteries

Molybdenum ditelluride nanosheets encapsulated in few‐layer graphene (MoTe/FLG) are synthesized by a simple heating method using Te and Mo powder and subsequent ball milling with graphite. The as‐prepared MoTe/FLG nanocomposites as anode materials for lithium‐ion batteries exhibit excellent electroc... Full description

Journal Title: Small April 2018, Vol.14(14), pp.n/a-n/a
Main Author: Ma, Ning
Other Authors: Jiang, Xiao‐Yu , Zhang, Lu , Wang, Xiao‐Shuang , Cao, Yu‐Liang , Zhang, Xian‐Zheng
Format: Electronic Article Electronic Article
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ID: ISSN: 1613-6810 ; E-ISSN: 1613-6829 ; DOI: 10.1002/smll.201703680
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recordid: wj10.1002/smll.201703680
title: Novel 2D Layered Molybdenum Ditelluride Encapsulated in Few‐Layer Graphene as High‐Performance Anode for Lithium‐Ion Batteries
format: Article
creator:
  • Ma, Ning
  • Jiang, Xiao‐Yu
  • Zhang, Lu
  • Wang, Xiao‐Shuang
  • Cao, Yu‐Liang
  • Zhang, Xian‐Zheng
subjects:
  • 2d Materials
  • Anode Materials
  • Graphene
  • Lithium‐Ion Batteries
  • Molybdenum Ditelluride
ispartof: Small, April 2018, Vol.14(14), pp.n/a-n/a
description: Molybdenum ditelluride nanosheets encapsulated in few‐layer graphene (MoTe/FLG) are synthesized by a simple heating method using Te and Mo powder and subsequent ball milling with graphite. The as‐prepared MoTe/FLG nanocomposites as anode materials for lithium‐ion batteries exhibit excellent electrochemical performance with a highly reversible capacity of 596.5 mAh g at 100 mA g, a high rate capability (334.5 mAh g at 2 A g), and superior cycling stability (capacity retention of 99.5% over 400 cycles at 0.5 A g). Ex situ X‐ray diffraction and transmission electron microscopy are used to explore the lithium storage mechanism of MoTe. Moreover, the electrochemical performance of a MoTe/FLG//0.35LiMnO·0.65LiMnNiO full cell is investigated, which displays a reversible capacity of 499 mAh g (based on the MoTe/FLG mass) at 100 mA g and a capacity retention of 78% over 50 cycles, suggesting the promising application of MoTe/FLG for lithium‐ion storage. First‐principles calculations exhibit that the lowest diffusion barrier (0.18 eV) for lithium ions along pathway III in the MoTe layered structure is beneficial for improving the Li intercalation/deintercalation property. are successfully synthesized through a simple heating and ball‐milling method, and they display superior cycling stability (capacity retention of 99.5% over 400 cycles at 0.5 A g). Ex situ X‐ray diffraction and transmission electron microscopy are used to explore the conversion mechanism of MoTe with Li.
language:
source:
identifier: ISSN: 1613-6810 ; E-ISSN: 1613-6829 ; DOI: 10.1002/smll.201703680
fulltext: fulltext
issn:
  • 1613-6810
  • 16136810
  • 1613-6829
  • 16136829
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titleNovel 2D Layered Molybdenum Ditelluride Encapsulated in Few‐Layer Graphene as High‐Performance Anode for Lithium‐Ion Batteries
creatorMa, Ning ; Jiang, Xiao‐Yu ; Zhang, Lu ; Wang, Xiao‐Shuang ; Cao, Yu‐Liang ; Zhang, Xian‐Zheng
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subject2d Materials ; Anode Materials ; Graphene ; Lithium‐Ion Batteries ; Molybdenum Ditelluride
descriptionMolybdenum ditelluride nanosheets encapsulated in few‐layer graphene (MoTe/FLG) are synthesized by a simple heating method using Te and Mo powder and subsequent ball milling with graphite. The as‐prepared MoTe/FLG nanocomposites as anode materials for lithium‐ion batteries exhibit excellent electrochemical performance with a highly reversible capacity of 596.5 mAh g at 100 mA g, a high rate capability (334.5 mAh g at 2 A g), and superior cycling stability (capacity retention of 99.5% over 400 cycles at 0.5 A g). Ex situ X‐ray diffraction and transmission electron microscopy are used to explore the lithium storage mechanism of MoTe. Moreover, the electrochemical performance of a MoTe/FLG//0.35LiMnO·0.65LiMnNiO full cell is investigated, which displays a reversible capacity of 499 mAh g (based on the MoTe/FLG mass) at 100 mA g and a capacity retention of 78% over 50 cycles, suggesting the promising application of MoTe/FLG for lithium‐ion storage. First‐principles calculations exhibit that the lowest diffusion barrier (0.18 eV) for lithium ions along pathway III in the MoTe layered structure is beneficial for improving the Li intercalation/deintercalation property. are successfully synthesized through a simple heating and ball‐milling method, and they display superior cycling stability (capacity retention of 99.5% over 400 cycles at 0.5 A g). Ex situ X‐ray diffraction and transmission electron microscopy are used to explore the conversion mechanism of MoTe with Li.
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titleNovel 2D Layered Molybdenum Ditelluride Encapsulated in Few‐Layer Graphene as High‐Performance Anode for Lithium‐Ion Batteries
descriptionMolybdenum ditelluride nanosheets encapsulated in few‐layer graphene (MoTe/FLG) are synthesized by a simple heating method using Te and Mo powder and subsequent ball milling with graphite. The as‐prepared MoTe/FLG nanocomposites as anode materials for lithium‐ion batteries exhibit excellent electrochemical performance with a highly reversible capacity of 596.5 mAh g at 100 mA g, a high rate capability (334.5 mAh g at 2 A g), and superior cycling stability (capacity retention of 99.5% over 400 cycles at 0.5 A g). Ex situ X‐ray diffraction and transmission electron microscopy are used to explore the lithium storage mechanism of MoTe. Moreover, the electrochemical performance of a MoTe/FLG//0.35LiMnO·0.65LiMnNiO full cell is investigated, which displays a reversible capacity of 499 mAh g (based on the MoTe/FLG mass) at 100 mA g and a capacity retention of 78% over 50 cycles, suggesting the promising application of MoTe/FLG for lithium‐ion storage. First‐principles calculations exhibit that the lowest diffusion barrier (0.18 eV) for lithium ions along pathway III in the MoTe layered structure is beneficial for improving the Li intercalation/deintercalation property. are successfully synthesized through a simple heating and ball‐milling method, and they display superior cycling stability (capacity retention of 99.5% over 400 cycles at 0.5 A g). Ex situ X‐ray diffraction and transmission electron microscopy are used to explore the conversion mechanism of MoTe with Li.
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abstractMolybdenum ditelluride nanosheets encapsulated in few‐layer graphene (MoTe/FLG) are synthesized by a simple heating method using Te and Mo powder and subsequent ball milling with graphite. The as‐prepared MoTe/FLG nanocomposites as anode materials for lithium‐ion batteries exhibit excellent electrochemical performance with a highly reversible capacity of 596.5 mAh g at 100 mA g, a high rate capability (334.5 mAh g at 2 A g), and superior cycling stability (capacity retention of 99.5% over 400 cycles at 0.5 A g). Ex situ X‐ray diffraction and transmission electron microscopy are used to explore the lithium storage mechanism of MoTe. Moreover, the electrochemical performance of a MoTe/FLG//0.35LiMnO·0.65LiMnNiO full cell is investigated, which displays a reversible capacity of 499 mAh g (based on the MoTe/FLG mass) at 100 mA g and a capacity retention of 78% over 50 cycles, suggesting the promising application of MoTe/FLG for lithium‐ion storage. First‐principles calculations exhibit that the lowest diffusion barrier (0.18 eV) for lithium ions along pathway III in the MoTe layered structure is beneficial for improving the Li intercalation/deintercalation property. are successfully synthesized through a simple heating and ball‐milling method, and they display superior cycling stability (capacity retention of 99.5% over 400 cycles at 0.5 A g). Ex situ X‐ray diffraction and transmission electron microscopy are used to explore the conversion mechanism of MoTe with Li.
doi10.1002/smll.201703680
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date2018-04