Improvement of Lithium Storage Performance of Molybdenum Trioxide by a Synergistic Effect of Surface Coating and Oxygen Vacancies

Chenglong Yang; Xiaowu Liu; Zhenzhong Yang; Lin Gu; Yan Yu

doi:10.1002/admi.201600730

Improvement of Lithium Storage Performance of Molybdenum Trioxide by a Synergistic Effect of Surface Coating and Oxygen Vacancies

Chenglong Yang, Xiaowu Liu, Zhenzhong Yang, Lin Gu, Yan Yu

Research output: Contribution to journal › Article › peer-review

25 Scopus citations

Abstract

3D hierarchical flower-like carbon coated MoO₃₋ _x nanosheets (denoted as MoO₃₋ _x NS@C) have been successfully fabricated by a simple hydrothermal method. When used as anode for Li-ion batteries, the MoO₃₋ _x NS@C electrode exhibits excellent cycle performance and outstanding rate capabilities. The charge capacity can reach 1025 mAh g⁻¹ over 150 cycles, and 62% of the charge capacity is retained when the current density increases to 2000 mA g⁻¹. The improved lithium storage performance of MoO₃₋ _x NS@C is attributed to the synergistic effect of oxygen vacancies and the carbon coating, which not only enhance the electric conductivity and Li-ion diffusion coefficient but also lead to superior structural stability and cyclability of the MoO₃₋ _x NS@C electrode during repeated lithiation/delithiation process.

Original language	English
Article number	1600730
Journal	Advanced Materials Interfaces
Volume	3
Issue number	22
DOIs	https://doi.org/10.1002/admi.201600730
State	Published - 18 Nov 2016
Externally published	Yes

Keywords

MoO nanosheets
anodes
carbon-coatings
lithium-ion batteries
oxygen vacancy

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1002/admi.201600730

Cite this

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title = "Improvement of Lithium Storage Performance of Molybdenum Trioxide by a Synergistic Effect of Surface Coating and Oxygen Vacancies",

abstract = "3D hierarchical flower-like carbon coated MoO3− x nanosheets (denoted as MoO3− x NS@C) have been successfully fabricated by a simple hydrothermal method. When used as anode for Li-ion batteries, the MoO3− x NS@C electrode exhibits excellent cycle performance and outstanding rate capabilities. The charge capacity can reach 1025 mAh g−1 over 150 cycles, and 62\% of the charge capacity is retained when the current density increases to 2000 mA g−1. The improved lithium storage performance of MoO3− x NS@C is attributed to the synergistic effect of oxygen vacancies and the carbon coating, which not only enhance the electric conductivity and Li-ion diffusion coefficient but also lead to superior structural stability and cyclability of the MoO3− x NS@C electrode during repeated lithiation/delithiation process.",

keywords = "MoO nanosheets, anodes, carbon-coatings, lithium-ion batteries, oxygen vacancy",

author = "Chenglong Yang and Xiaowu Liu and Zhenzhong Yang and Lin Gu and Yan Yu",

note = "Publisher Copyright: {\textcopyright} 2016 WILEY-VCH Verlag GmbH \& Co. KGaA, Weinheim",

year = "2016",

month = nov,

day = "18",

doi = "10.1002/admi.201600730",

language = "英语",

volume = "3",

journal = "Advanced Materials Interfaces",

issn = "2196-7350",

publisher = "John Wiley and Sons Ltd",

number = "22",

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T1 - Improvement of Lithium Storage Performance of Molybdenum Trioxide by a Synergistic Effect of Surface Coating and Oxygen Vacancies

AU - Yang, Chenglong

AU - Liu, Xiaowu

AU - Yang, Zhenzhong

AU - Gu, Lin

AU - Yu, Yan

PY - 2016/11/18

Y1 - 2016/11/18

N2 - 3D hierarchical flower-like carbon coated MoO3− x nanosheets (denoted as MoO3− x NS@C) have been successfully fabricated by a simple hydrothermal method. When used as anode for Li-ion batteries, the MoO3− x NS@C electrode exhibits excellent cycle performance and outstanding rate capabilities. The charge capacity can reach 1025 mAh g−1 over 150 cycles, and 62% of the charge capacity is retained when the current density increases to 2000 mA g−1. The improved lithium storage performance of MoO3− x NS@C is attributed to the synergistic effect of oxygen vacancies and the carbon coating, which not only enhance the electric conductivity and Li-ion diffusion coefficient but also lead to superior structural stability and cyclability of the MoO3− x NS@C electrode during repeated lithiation/delithiation process.

AB - 3D hierarchical flower-like carbon coated MoO3− x nanosheets (denoted as MoO3− x NS@C) have been successfully fabricated by a simple hydrothermal method. When used as anode for Li-ion batteries, the MoO3− x NS@C electrode exhibits excellent cycle performance and outstanding rate capabilities. The charge capacity can reach 1025 mAh g−1 over 150 cycles, and 62% of the charge capacity is retained when the current density increases to 2000 mA g−1. The improved lithium storage performance of MoO3− x NS@C is attributed to the synergistic effect of oxygen vacancies and the carbon coating, which not only enhance the electric conductivity and Li-ion diffusion coefficient but also lead to superior structural stability and cyclability of the MoO3− x NS@C electrode during repeated lithiation/delithiation process.

KW - MoO nanosheets

KW - anodes

KW - carbon-coatings

KW - lithium-ion batteries

KW - oxygen vacancy

UR - https://www.scopus.com/pages/publications/84988369381

U2 - 10.1002/admi.201600730

DO - 10.1002/admi.201600730

M3 - 文章

AN - SCOPUS:84988369381

SN - 2196-7350

VL - 3

JO - Advanced Materials Interfaces

JF - Advanced Materials Interfaces

IS - 22

M1 - 1600730

ER -

Improvement of Lithium Storage Performance of Molybdenum Trioxide by a Synergistic Effect of Surface Coating and Oxygen Vacancies

Abstract

Keywords

UN SDGs

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