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Facile microwave-assisted synthesis of Ce-doped Bi2O3 for efficient asymmetric supercapacitors
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  • Xin Tao,
  • Mingqi Wei,
  • Lianghao Yu,
  • Bocheng zhuang,
  • Linlin Zhang,
  • Ruilin Zhu,
  • Guangzhen Zhao,
  • Lu Han,
  • Yuanyuan Zhu,
  • Huile Jin,
  • Guang Zhu
Mingqi Wei
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Lianghao Yu

Corresponding Author:[email protected]

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Bocheng zhuang
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Linlin Zhang
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Ruilin Zhu
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Guangzhen Zhao
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Yuanyuan Zhu
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Huile Jin
Wenzhou University
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Bi2O3 (BT) is considered a fascinating anode material for asymmetric supercapacitors (ASCs) due to its high theoretical capacity, but the low conductivity limits further applications. With this in mind, cerium-doped Bi2O3 (Ce−BT) nanoflower spheres were synthesized by a facile and rapid microwave-assisted solvothermal method for ASCs anode materials. It is found that the morphology of BT could be controlled by Ce doping from stacked nanosheets to well-dispersed nanoflowers spheres and producing abundant amorphous regions, thus expediting the ion transport rate. Consequently, When the added Bi to Ce molar ratio is 40:1 (Ce-BT-40), it exhibited a specific capacitance of 721 F g−1 at 0.5 A g−1. Additionally, when fabricating ASCs with as-prepared Ce−BT−40 and CeNiCo-LDH, an energy density of 59.1 Wh kg−1 is provided at a power density of 652 W kg−1. This work not only reveals the mechanism of the effect of Ce doping on the electrochemical properties of BTs but also proposes a rapid synthesis method of Ce−BTs by microwave-assisted solvent method, which provides new insights for building advanced ASCs with high energy density and low cost.
04 Oct 2023Submitted to Battery Energy
06 Oct 2023Assigned to Editor
06 Oct 2023Submission Checks Completed
06 Oct 2023Review(s) Completed, Editorial Evaluation Pending
30 Oct 2023Editorial Decision: Revise Major
13 Nov 20231st Revision Received
14 Nov 2023Submission Checks Completed
14 Nov 2023Assigned to Editor
14 Nov 2023Review(s) Completed, Editorial Evaluation Pending
14 Nov 2023Reviewer(s) Assigned