Trace Cs induced phase transition of Mn<sub>2</sub>O<sub>3</sub> for enhanced magnesium ion capacitors

Li, Mudi; Ding, Yaxi; Zhang, Siwen; Liu, Minghui; Sun, Ying; Zhang, Yusheng; Yin, Bosi; Ma, Tianyi

doi:10.1039/d4ta00371c

J. Mater. Chem. A

2024

DOI: 10.1039/d4ta00371c

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Trace Cs induced phase transition of Mn₂O₃ for enhanced magnesium ion capacitors

Mudi Li,

Yaxi Ding,

Siwen Zhang

et al.

Abstract: The sluggish dynamics arising from potent electrostatic interaction between bivalent magnesium ions and the primary material hinder the reversible intercalation/deintercalation of Mg2+. This constraint limits the practicability of aqueous magnesium-ion...

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Cited by 7 publications

References 41 publications

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Organic‐Inorganic Coupling Strategy: Clamp Effect to Capture Mg²⁺ for Aqueous Magnesium Ion Capacitor

Li,

Ding,

Zhang

et al. 2024

Angewandte Chemie

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The rapid transport kinetics of divalent magnesium ions are crucial for achieving distinguished performance in aqueous magnesium‐ion battery‐based energy storage capacitors. However, the strong electrostatic interaction between Mg2+ with double charges and the host material significantly restricts Mg2+ diffusivity. In this study, a new composite material, EDA‐Mn2O3, with double‐energy storage mechanisms comprising an organic phase (ethylenediamine, EDA) and an inorganic phase (manganese sesquioxide) was successfully synthesized via an organic‐inorganic coupling strategy. Inorganic‐phase Mn2O3 serves as a scaffold structure, enabling the stable and reversible intercalation/deintercalation of magnesium ions. The organic phase EDA adsorbed onto the surface of Mn2O3 as an elastic matrix, works synergistically with Mn2O3, and utilizes bidentate chelating ligands to capture Mg2+. The robust coordination effect of terminal biprotonic amine in EDA enhances the structural diversity and specific capacity characteristics of the composite material, as further corroborated by density functional theory (DFT) calculations, ex‐situ XRD, XPS, and Raman spectroscopy. As expected, an aqueous magnesium ion capacitor with EDA‐Mn2O3 serving as the cathode can reach 110.17 Wh/kg. This study aimed to explore the practical application value of organic‒inorganic composite electrodes with double‐energy storage mechanisms.

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Organic‐Inorganic Coupling Strategy: Clamp Effect to Capture Mg²⁺ for Aqueous Magnesium Ion Capacitor

Li,

Ding,

Zhang

et al. 2024

Angewandte Chemie

View full text Add to dashboard Cite

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Organic‐Inorganic Coupling Strategy: Clamp Effect to Capture Mg²⁺ for Aqueous Magnesium Ion Capacitor

Li,

Ding,

Zhang

et al. 2024

Angew Chem Int Ed

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Lithium Doping Enhances the Aqueous Zinc Ion Storage Performance of V₃O₇ ⋅ H₂O Nanorods

Hu,

Zhang,

Ren

et al. 2024

ChemElectroChem

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Aqueous zinc‐ion batteries (AZIBs) offer significant advantages, including high safety, environmental protection and abundant zinc sources. V‐based layer‐like oxides are promising candidates as cathode materials for ZIBs; however, they face challenges such as low electrical conductivity, poor cycling stability, and limited Zn2+ storage capacity. In this study, Li‐V3O7 ⋅ H2O electrode materials were successfully synthesized using a hydrothermal method. The doping of lithium ions has led to a significant expansion of the interlayer spacing within the electrode structure, which enhances ion mobility and improves ion transport speed as well as charge‐discharge rates. Additionally, the increased spacing allows for the accommodation of more zinc ions, resulting in greater specific capacity and energy storage. More importantly, this modification reduces structural strain, minimizes the dissolution of vanadium‐based materials, and maintains electrode integrity over multiple cycles, thereby improving cycling stability. Consequently, the properties of V3O7 ⋅ H2O electrodes were substantially enhanced through lithium‐ion doping. The Li‐V3O7 ⋅ H2O cathode has a specific capacity of 411.8 mAh g−1 at low current and maintains 83 % of its capacity at 4.0 A g−1 for 4800 cycles, indicating a noteworthy improvement over pristine V3O7 ⋅ H2O. Exhibiting outstanding conductivity, discharge capacity, and cycling stability, it holds immense promise for future high‐performance energy storage.

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Trace Cs induced phase transition of Mn₂O₃ for enhanced magnesium ion capacitors

Abstract: The sluggish dynamics arising from potent electrostatic interaction between bivalent magnesium ions and the primary material hinder the reversible intercalation/deintercalation of Mg2+. This constraint limits the practicability of aqueous magnesium-ion...

Cited by 7 publications

References 41 publications

Organic‐Inorganic Coupling Strategy: Clamp Effect to Capture Mg²⁺ for Aqueous Magnesium Ion Capacitor

Organic‐Inorganic Coupling Strategy: Clamp Effect to Capture Mg²⁺ for Aqueous Magnesium Ion Capacitor

Organic‐Inorganic Coupling Strategy: Clamp Effect to Capture Mg²⁺ for Aqueous Magnesium Ion Capacitor

Lithium Doping Enhances the Aqueous Zinc Ion Storage Performance of V₃O₇ ⋅ H₂O Nanorods

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Trace Cs induced phase transition of Mn2O3 for enhanced magnesium ion capacitors

Abstract: The sluggish dynamics arising from potent electrostatic interaction between bivalent magnesium ions and the primary material hinder the reversible intercalation/deintercalation of Mg2+. This constraint limits the practicability of aqueous magnesium-ion...

Cited by 7 publications

References 41 publications

Organic‐Inorganic Coupling Strategy: Clamp Effect to Capture Mg2+ for Aqueous Magnesium Ion Capacitor

Organic‐Inorganic Coupling Strategy: Clamp Effect to Capture Mg2+ for Aqueous Magnesium Ion Capacitor

Organic‐Inorganic Coupling Strategy: Clamp Effect to Capture Mg2+ for Aqueous Magnesium Ion Capacitor

Lithium Doping Enhances the Aqueous Zinc Ion Storage Performance of V3O7 ⋅ H2O Nanorods

Contact Info

Product

Resources

About

Trace Cs induced phase transition of Mn₂O₃ for enhanced magnesium ion capacitors

Organic‐Inorganic Coupling Strategy: Clamp Effect to Capture Mg²⁺ for Aqueous Magnesium Ion Capacitor

Organic‐Inorganic Coupling Strategy: Clamp Effect to Capture Mg²⁺ for Aqueous Magnesium Ion Capacitor

Organic‐Inorganic Coupling Strategy: Clamp Effect to Capture Mg²⁺ for Aqueous Magnesium Ion Capacitor

Lithium Doping Enhances the Aqueous Zinc Ion Storage Performance of V₃O₇ ⋅ H₂O Nanorods