Insights into the oxygen vacancies in transition metal oxides for aqueous Zinc-Ion batteries

Song, Qiongyao; Zhou, Shuhao; Wang, Shouyue; Li, Sheng; Xu, Li; Qiu, Jingxia

doi:10.1016/j.cej.2023.142033

Cited by 27 publications

(14 citation statements)

References 106 publications

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“…In various vanadium oxides, oxygen vacancies are particularly important in modifying the chemistry of layers, thus affecting the interaction between layers and Zn 2 + . [44] Therefore, the introduction of oxygen vacancies could also facilitate ion diffusion. Liao et al successfully synthesized a V 6 O 13 material with oxygen-rich vacancies (O d -VO) through thermal treatment in a reducing N 2 /H 2 atmosphere.…”

Section: Limited Ion Diffusion Kineticsmentioning

confidence: 99%

Critical Issues of Vanadium‐Based Cathodes Towards Practical Aqueous Zn‐Ion Batteries

Jiang

Yang

2023

Chemistry A European J

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Aqueous zinc‐ion batteries (ZIBs) are gaining significant attention for their numerous advantages, including high safety, high energy density, affordability, and environmental friendliness. However, the development of ZIBs has been hampered by the lack of suitable cathode materials that can store Zn2+ with high capacity and reversibility. Currently, vanadium‐based materials with tunnel or layered structures are widely researched owing to their high theoretical capacity and diversified structures. However, their long‐term cycling stability is unsatisfactory because of material dissolution, phase transformation, and restrictive kinetics in aqueous electrolytes, which limits their practical applications. Different from previous reviews on ZIBs, this review specifically addresses the critical issues faced by vanadium‐based cathodes for practical aqueous ZIBs and proposes potential solutions. Focusing on vanadium‐based cathodes, their ion storage mechanisms, the critical parameters affecting their performance, and the progress made in addressing the aforementioned problems are also summarized. Finally, future directions for the development of practical aqueous ZIB are suggested.

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Section: Limited Ion Diffusion Kineticsmentioning

confidence: 99%

Critical Issues of Vanadium‐Based Cathodes Towards Practical Aqueous Zn‐Ion Batteries

Jiang

Yang

2023

Chemistry A European J

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“…Traditionally, introducing oxygen vacancies has been accomplished through methods like high-temperature reduction, chemical reactions, and mechanical processes. − However, these conventional methods come with inherent limitations, including reliance on high-temperature conditions, difficulties in precisely introducing oxygen vacancies in specific regions, the potential for unpredictable changes in material structure and properties, and even the risk of unintentionally introducing impurities. ,− These factors collectively restrict the further optimization of material performance to some extent . Therefore, the active pursuit of a milder and more controllable method for generating oxygen vacancies has become increasingly important in the field of electrochemistry.…”

Section: Introductionmentioning

confidence: 99%

Lithium-Induced Oxygen Vacancies in MnO₂@MXene for High-Performance Zinc–Air Batteries

Sun,

Guo,

Shu

et al. 2024

ACS Appl. Mater. Interfaces

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The traditional methods for creating oxygen vacancies in materials present several challenges and limitations, such as high preparation temperatures, limited oxygen vacancy generation, and morphological destruction, which hinder the application of transition metal oxides in the field of zinc–air batteries (ZABs). In order to address these limitations, we have introduced a pioneering lithium reduction strategy for generating oxygen vacancies in δ-MnO2@MXene composite materials. This strategy stands out for its simplicity of implementation, applicability at room temperature, and preservation of the material’s structural integrity. This research demonstrates that aqueous Ov-MnO2@MXene-5, with introduced oxygen vacancies, exhibits an outstanding oxygen reduction reaction (ORR) activity with an ORR half-wave potential reaching 0.787 V. DFT calculations have demonstrated that the enhanced activity could be attributed to adjustments in the electronic structure and alterations in adsorption bond lengths. These adjustments result from the introduction of oxygen vacancies, which in turn promote electron transport and catalytic activity. In the context of zinc–air batteries, cells with Ov-MnO2@MXene-5 as the air cathode exhibit outstanding performance, featuring a significantly improved maximum power density (198.3 mW cm–2) and long-term cycling stability. Through the innovative strategy of introducing oxygen vacancies, this study has successfully enhanced the electrochemical catalytic performance of MnO2, overcoming the limitations associated with traditional methods for creating oxygen vacancies. Consequently, this research opens up new avenues and directions for nonprecious metal catalyst application in ZABs.

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“…have been explored for electrochemical sensing, 22 electrochromic devices, 23,24 supercapacitors 25–27 and battery performance. 28 The supercapacitor can be either an electric double-layer supercapacitor 29 (non-faradaic or EDLC) or a pseudocapacitor 30,31 (faradaic or redox active). Materials with pseudocapacitive properties can also be used as sensors, depending upon their redox activity.…”

Section: Introductionmentioning

confidence: 99%

Fluorane sensitive supercapacitive microcrystalline MoO₃: dual application in energy storage and HF detection

Bansal,

Ghosh,

Kandpal

et al. 2023

Mater. Adv.

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Insights into the oxygen vacancies in transition metal oxides for aqueous Zinc-Ion batteries

Cited by 27 publications

References 106 publications

Critical Issues of Vanadium‐Based Cathodes Towards Practical Aqueous Zn‐Ion Batteries

Critical Issues of Vanadium‐Based Cathodes Towards Practical Aqueous Zn‐Ion Batteries

Lithium-Induced Oxygen Vacancies in MnO₂@MXene for High-Performance Zinc–Air Batteries

Fluorane sensitive supercapacitive microcrystalline MoO₃: dual application in energy storage and HF detection

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Insights into the oxygen vacancies in transition metal oxides for aqueous Zinc-Ion batteries

Cited by 27 publications

References 106 publications

Critical Issues of Vanadium‐Based Cathodes Towards Practical Aqueous Zn‐Ion Batteries

Critical Issues of Vanadium‐Based Cathodes Towards Practical Aqueous Zn‐Ion Batteries

Lithium-Induced Oxygen Vacancies in MnO2@MXene for High-Performance Zinc–Air Batteries

Fluorane sensitive supercapacitive microcrystalline MoO3: dual application in energy storage and HF detection

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Lithium-Induced Oxygen Vacancies in MnO₂@MXene for High-Performance Zinc–Air Batteries

Fluorane sensitive supercapacitive microcrystalline MoO₃: dual application in energy storage and HF detection