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Author:

Xu, Qiuju (Xu, Qiuju.) | Zhou, Wencai (Zhou, Wencai.) | Xin, Tuo (Xin, Tuo.) | Zheng, Zilong (Zheng, Zilong.) | Yuan, Xiangcheng (Yuan, Xiangcheng.) | Liu, Jinzhang (Liu, Jinzhang.)

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EI Scopus SCIE

Abstract:

Aqueous Zn-based rechargeable batteries hold great promise for large-scale energy storage systems due to their high safety, environmental benignity, and low cost. However, the active Zn anode suffers from severe dendrite growth and hydrogen gas evolution, which have to be tackled for practical applications. Here, a Ti-MOF derived nanocomposite coating, i.e., mesoporous nitrogen-doped carbon frameworks decorated with TiO2 nanoparticles (named TiO2/NC), is prepared to form coatings on Zn foil for improving the anode performance. Compared to the bare Zn anode, the Zn@TiO2/NC anode exhibits better anti-corrosion performance, much fewer byproducts, and a much longer cycle life in either half or full cells. The symmetric cell using Zn@TiO2/NC shows a high coulombic efficiency of 99.4% and long cycle life of 1100 h when tested at 5 mA cm(-2). When combined with a MnO2 cathode, the Zn@TiO2/NC anode exhibits higher and more stable capacity with cycling. The role of TiO2/NC in suppressing dendrite growth and reducing hydrogen gas evolution is discussed in detail.

Keyword:

Author Community:

  • [ 1 ] [Xu, Qiuju]Beihang Univ, Sch Mat Sci & Engn, Beijing, Peoples R China
  • [ 2 ] [Xin, Tuo]Beihang Univ, Sch Mat Sci & Engn, Beijing, Peoples R China
  • [ 3 ] [Yuan, Xiangcheng]Beihang Univ, Sch Mat Sci & Engn, Beijing, Peoples R China
  • [ 4 ] [Liu, Jinzhang]Beihang Univ, Sch Mat Sci & Engn, Beijing, Peoples R China
  • [ 5 ] [Zhou, Wencai]Beijing Univ Technol, Dept Mat & Mfg, Beijing 100124, Peoples R China
  • [ 6 ] [Zheng, Zilong]Beijing Univ Technol, Dept Mat & Mfg, Beijing 100124, Peoples R China

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Source :

JOURNAL OF MATERIALS CHEMISTRY A

ISSN: 2050-7488

Year: 2022

Issue: 22

Volume: 10

Page: 12247-12257

1 1 . 9

JCR@2022

1 1 . 9 0 0

JCR@2022

ESI Discipline: MATERIALS SCIENCE;

ESI HC Threshold:66

JCR Journal Grade:1

CAS Journal Grade:2

Cited Count:

WoS CC Cited Count: 38

SCOPUS Cited Count: 39

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 0

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