Defect engineering in molybdenum-based electrode materials for energy storage

Wang Weixiao; Xiong Fangyu; Zhu Shaohua; Chen Jinghui; Xie Jun; An Qinyou

doi:10.1016/j.esci.2022.04.005

Volume 2 Issue 3

May 2022

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Wang Weixiao, Xiong Fangyu, Zhu Shaohua, Chen Jinghui, Xie Jun, An Qinyou. Defect engineering in molybdenum-based electrode materials for energy storage[J]. eScience, 2022, 2(3): 278-294. doi: 10.1016/j.esci.2022.04.005

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Wang Weixiao, Xiong Fangyu, Zhu Shaohua, Chen Jinghui, Xie Jun, An Qinyou. Defect engineering in molybdenum-based electrode materials for energy storage[J]. eScience, 2022, 2(3): 278-294. doi: 10.1016/j.esci.2022.04.005

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Defect engineering in molybdenum-based electrode materials for energy storage

doi: 10.1016/j.esci.2022.04.005

Wang Weixiao^a,
Xiong Fangyu^a,
Zhu Shaohua^a,
Chen Jinghui^a,
Xie Jun^{b
,
,},
An Qinyou^{a, c
,
,}

a.
State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070, China
b.
State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan, 430070, China
c.
Foshan Xianhu Laboratory of the Advanced Energy Science and Technology Guangdong Laboratory, Foshan, 528200, China

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Corresponding author: E-mail address: xiejun2006@whut.edu.cn (J. Xie); anqinyou86@whut.edu.cn (Q. An)
Received Date: 2021-12-24
Revised Date: 2022-03-15
Accepted Date: 2022-04-18

Available Online: 2022-04-28

Abstract

Abstract

Molybdenum-based materials have stepped into the spotlight as promising electrodes for energy storage systems due to their abundant valence states, low cost, and high theoretical capacity. However, the performance of conventional molybdenum-based electrode materials has been limited by slow diffusion dynamics and deficient thermodynamics. Applying defect engineering to molybdenum-based electrode materials is a viable method for overcoming these intrinsic limitations to realize superior electrochemical performance for energy storage. Herein, we systematically review recent progress in defect engineering for molybdenum-based electrode materials, including vacancy modulation, doping engineering, topochemical substitution, and amorphization. In particular, the essential optimization mechanisms of defect engineering in molybdenum-based electrode materials are presented: accelerating ion diffusion, enhancing electron transfer, adjusting potential, and maintaining structural stability. We also discuss the existing challenges and future objectives for defect engineering in molybdenum-based electrode materials to realize high-energy and high-power energy storage devices.
- Energy storage,
- Molybdenum-based electrode materials,
- Defect engineering

● The essential optimization mechanisms of defect engineering in molybdenum-based electrode materials are discussed.
● We systematically summarize the recent progress in defect engineering of molybdenum-based electrode materials.
● The future objectives of defect engineering in materials for high-performance energy storage devices are presented.

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References

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