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作者:

Guo, Shiquan (Guo, Shiquan.) | Liu, Jingbing (Liu, Jingbing.) | Zhang, Qianqian (Zhang, Qianqian.) | Jin, Yuhong (Jin, Yuhong.) | Wang, Hao (Wang, Hao.)

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EI Scopus SCIE

摘要:

In this work, a scalable approach of preparing Co3O4/Co@N-C composite derived from metal organic frameworks (MOFs) is developed. After consecutive carbonization and oxidation of MOFs at different calcination temperatures, a series of nanocomposite consisting of Co3O4, conductive Co nanoparticles, and Nitrogen doped (N-doped) mesoporous carbon are obtained via in-situ polymerization strategy. When employed as anode materials for lithium-ion batteries (LIBs), the Crystalline-Co3O4/Co@N-C-700 (Cry-Co3O4/Co@N-C-700) electrode has shown high reversible specific capacity of 896.5 mAh g(-1) at 0.1 A g(-1), excellent rate capability of 376.2 mAh g(-1) at a large current density of 2 A g(-1), and robust longterm capacity retention rate of 96.0% at 0.2 A g(-1) after 50 cycles. Such superior lithium storage performance could be attributed to the unique porous structure which composed of well-dispersed Co(3)O(4)and conductive Co nanoparticles together with N-doped carbon skeleton. The unique structure can effectively improve the conductivity and act as a buffer medium to alleviate the volume change, which shows potential application for new energy storage materials. (C) 2020 Elsevier B.V. All rights reserved.

关键词:

Co3O4/Co@N-C composite Lithium-ion batteries Anode Metal organic framework In-situ polymerization

作者机构:

  • [ 1 ] [Guo, Shiquan]Beijing Univ Technol, Coll Mat Sci & Engn, Beijing 100124, Peoples R China
  • [ 2 ] [Liu, Jingbing]Beijing Univ Technol, Coll Mat Sci & Engn, Beijing 100124, Peoples R China
  • [ 3 ] [Zhang, Qianqian]Beijing Univ Technol, Coll Mat Sci & Engn, Beijing 100124, Peoples R China
  • [ 4 ] [Jin, Yuhong]Beijing Univ Technol, Coll Mat Sci & Engn, Beijing 100124, Peoples R China
  • [ 5 ] [Wang, Hao]Beijing Univ Technol, Coll Mat Sci & Engn, Beijing 100124, Peoples R China

通讯作者信息:

  • [Liu, Jingbing]Beijing Univ Technol, Coll Mat Sci & Engn, Beijing 100124, Peoples R China

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来源 :

JOURNAL OF ALLOYS AND COMPOUNDS

ISSN: 0925-8388

年份: 2021

卷: 855

6 . 2 0 0

JCR@2022

ESI学科: MATERIALS SCIENCE;

ESI高被引阀值:116

JCR分区:1

被引次数:

WoS核心集被引频次: 35

SCOPUS被引频次: 40

ESI高被引论文在榜: 0 展开所有

万方被引频次:

中文被引频次:

近30日浏览量: 1

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