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author:

Zhang, Xiang (Zhang, Xiang.) [1] | Zhou, Jun (Zhou, Jun.) [2] | Zheng, Yuying (Zheng, Yuying.) [3] (Scholars:郑玉婴) | Chen, Dongyang (Chen, Dongyang.) [4]

Indexed by:

EI Scopus SCIE

Abstract:

Bimetallic transition-metal selenides have emerged as promising anode materials for lithium-ion batteries (LIBs). However, they suffer from rapid capacity fading which is originated from significant chemical and mechanical degradation during lithiation/delithiation processes. Herein, nitrogen-doped graphene aerogel (NGA) with high porosity is prepared via a templated method and serves as the matrix for the uniform growth of sheet-like binary transition-metal selenides (MoSe2-CoSe2). The porous NGA with high specific surface area provides a stable and conductive network, which can accelerate electron transmission and shorten the diffusion distance of Li ions. Furthermore, the MoSe2-CoSe2 nanosheets can offer adequate specific capacity because of its high accessibility and multiple redox properties. As a result, the MoSe2-CoSe2/NGA-10 composite delivers high Li-ion storage capacity (1260 mAh g(-1) at 0.1 A g(-1)), excellent rate capability (702 mAh g(-1) at 5 A g(-1)), and stable cycling performance (914 mAh g(-1) at 1 A g(-1) after 200 cycles), demonstrating its great potential for LIB applications.

Keyword:

Graphene aerogel Lithium-ion battery MoSe2-CoSe2 Nitrogen doping Porous structure

Community:

  • [ 1 ] [Zhang, Xiang]Fuzhou Univ, Coll Mat Sci & Engn, Fuzhou 350116, Fujian, Peoples R China
  • [ 2 ] [Zhou, Jun]Fuzhou Univ, Coll Mat Sci & Engn, Fuzhou 350116, Fujian, Peoples R China
  • [ 3 ] [Zheng, Yuying]Fuzhou Univ, Coll Mat Sci & Engn, Fuzhou 350116, Fujian, Peoples R China
  • [ 4 ] [Chen, Dongyang]Fuzhou Univ, Coll Mat Sci & Engn, Fuzhou 350116, Fujian, Peoples R China
  • [ 5 ] [Zheng, Yuying]Key Lab New Rubber & Plast Mat, Quanzhou 362211, Fujian, Peoples R China
  • [ 6 ] [Zheng, Yuying]Chenqi New Mat Technol Co Ltd, Quanzhou 362200, Fujian, Peoples R China

Reprint 's Address:

  • 郑玉婴 陈栋阳

    [Zheng, Yuying]Fuzhou Univ, Coll Mat Sci & Engn, Fuzhou 350116, Fujian, Peoples R China;;[Chen, Dongyang]Fuzhou Univ, Coll Mat Sci & Engn, Fuzhou 350116, Fujian, Peoples R China

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Source :

JOURNAL OF POWER SOURCES

ISSN: 0378-7753

Year: 2019

Volume: 439

8 . 2 4 7

JCR@2019

8 . 1 0 0

JCR@2023

ESI Discipline: MATERIALS SCIENCE;

ESI HC Threshold:236

JCR Journal Grade:1

CAS Journal Grade:2

Cited Count:

WoS CC Cited Count: 71

SCOPUS Cited Count: 60

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 1

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