Sodium ion intercalation and multi redox behavior of a Keggin type polyoxometalate during [PMo10V2O40]5−to [PMo10V2O40]27−as a cathode material for Na-ion rechargeable batteries

Priyadarshini, Marimuthu; Shanmugan, Swaminathan; Kirubakaran, Kiran Preethi; Thomas, Anoopa; Prakash, M.; Vediappan, Kumaran

doi:10.1039/d1ra02092g

Cited by 11 publications

(4 citation statements)

References 51 publications

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“…As previously reported, the spherical morphology of Mo 10 V 2 is also visible in Fig. 2b where they appear as small spherical dots, 48 confirming the noticeable dispersion/ encapsulation of Mo 10 V 2 in MIL-101(Fe). 43 (The morphology of Mo 10 V 2 is given in Fig.…”

Section: Physical Characterizationsupporting

confidence: 88%

Mo₁₀V₂@MIL-101: pseudo-capacitive and redox-active efficient anode material for high-rate lithium cluster batteries

et al. 2023

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Section: Physical Characterizationsupporting

confidence: 88%

Mo₁₀V₂@MIL-101: pseudo-capacitive and redox-active efficient anode material for high-rate lithium cluster batteries

et al. 2023

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“…On the other hand, the P–O vibration peak (P–O a ) of FT-IR spectra showed no shift (1052.0 cm –1 ), indicating that the P–O bond’s binding energy was independent of cation exchange. Thus, the alkali cation affected the binding energy between Mo–O, not P–O, acting as a cluster linker . As a result, the primary Keggin structure (or original cluster) of HPMoV was well preserved upon cation exchange, where H was replaced by X cations.…”

Section: Resultsmentioning

confidence: 99%

“…Thus, the alkali cation affected the binding energy between Mo−O, not P−O, acting as a cluster linker. 36 As a result, the primary Keggin structure (or original cluster) of HPMoV was well preserved upon cation exchange, where H was replaced by X cations.…”

Section: Resultsmentioning

confidence: 99%

Intercalation Pseudocapacitance of Cation-Exchanged Molybdenum-Based Polyoxometalate for the Fast and Stable Zinc-Ion Storage

Kim

Yeon

Park

et al. 2023

ACS Appl. Mater. Interfaces

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Recently, intercalation pseudocapacitance has received significant interest as an abnormal charge storage mechanism owing to the battery-like intercalation energy storage into the bulk electrodes and the fast charge storage kinetics of electrochemical capacitors. However, intercalation pseudocapacitance of molybdenum-based polyoxometalates (POMs) for high-performance Zn ion battery (ZIB) cathodes is yet to be exploited. Herein, we demonstrate the fast and reversible intercalation pseudocapacitance of vanadium-substituted Keggin-type molybdenum-based POMs (XPMoV), where H of HPMoV is replaced by X cations (X = Li, Na, K, or Rb). This cation exchange allows cation-exchanged XPMoV to exhibit the morphological evolution into an anisotropic rodlike structure and to achieve a pillar effect on the improved chemical and structural integrity. Despite the micron-size rod morphology and the contracted lattice of (100) plane, the intercalation pseudocapacitance kinetics of XPMoV was dominated by the fast surface-confined electrochemistry and became highly reversible after the 1st cycle activation process by co-intercalation of Li+ and Zn2+ ions. Therefore, the ZIB with the KPMoV cathode delivered a high rate capability of 74.0 mAh g–1 at 20,000 mA g–1 and 87% capacity retention over 2000 cycles at 1000 mA g–1, far exceeding HPMoV and other Mo-based cathodes. This study paves the way to design the fast and reversible intercalation pseudocapacitance of POMs and the cation exchange chemistry into the improved (electro)chemical and structural integrity.

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“…[28][29][30] They are usually composed of four parts: photoanode/electron transport layer, QDs (dye)/light absorption layer (perovskite layer), electrolyte/hole transport layer and counter electrode/metal electrode. Besides, POMs have been extensively studied as "electron sponge" in lithium, 31 sodium, 32 lithium sulfur batteries 33 and flow redox cells 34 due to the reversible multi-electron redox properties and its redox activity that can be regulated by doping (Co, V, Mn, etc.). 35,36 Fig.…”

Section: Introductionmentioning

confidence: 99%

Application of polyoxometalates in third-generation solar cells

Zhang

2023

Polyoxometalates

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Currently, the pursuit of low-cost, simple preparation, high efficiency and stability is still the main goal of researchers to develop the third generation of solar cells, which usually includes QDSSCs, DSSCs, PSCs and OSCs. Polyoxometalates (POMs) are a class of inorganic anionic metallic oxygen cluster compounds with abundant charge, skeleton structure, and excellent physical and chemical properties, such as strong electron acceptability, adjustable energy band structure, and reversible multi-electron redox properties, inexpensive and environmental friendliness. Therefore, numerous superior properties of POMs make them become building blocks for the preparation of other nanomaterials. Simultaneously, making full use of the extraordinary characteristics of POMs to reduce cost and improve the efficiency and stability of solar cells is an effective means to solve the current energy crisis. In this review, we summarize the research progress of various POMs molecules and their derived POMs-based nanomaterials in enhancing the performance of QDSSCs, DSSCs, PSCs and OSCs, meanwhile, the great development prospect of POMs in the field of photovoltaic devices in the future is forecasted.

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Sodium ion intercalation and multi redox behavior of a Keggin type polyoxometalate during [PMo₁₀V₂O₄₀]⁵⁻to [PMo₁₀V₂O₄₀]²⁷⁻as a cathode material for Na-ion rechargeable batteries

Abstract: The versatile property of the Keggin type POM is the multi-electron transfer that happens during the switching between [PMo10V2O40]5− to [PMo10V2O40]27−. This tunable behavior makes it unique, efficient material as a cathode for Na-ion batteries.

Cited by 11 publications

References 51 publications

Mo₁₀V₂@MIL-101: pseudo-capacitive and redox-active efficient anode material for high-rate lithium cluster batteries

Mo₁₀V₂@MIL-101: pseudo-capacitive and redox-active efficient anode material for high-rate lithium cluster batteries

Intercalation Pseudocapacitance of Cation-Exchanged Molybdenum-Based Polyoxometalate for the Fast and Stable Zinc-Ion Storage

Application of polyoxometalates in third-generation solar cells

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Sodium ion intercalation and multi redox behavior of a Keggin type polyoxometalate during [PMo10V2O40]5−to [PMo10V2O40]27−as a cathode material for Na-ion rechargeable batteries

Abstract: The versatile property of the Keggin type POM is the multi-electron transfer that happens during the switching between [PMo10V2O40]5− to [PMo10V2O40]27−. This tunable behavior makes it unique, efficient material as a cathode for Na-ion batteries.

Cited by 11 publications

References 51 publications

Mo10V2@MIL-101: pseudo-capacitive and redox-active efficient anode material for high-rate lithium cluster batteries

Mo10V2@MIL-101: pseudo-capacitive and redox-active efficient anode material for high-rate lithium cluster batteries

Intercalation Pseudocapacitance of Cation-Exchanged Molybdenum-Based Polyoxometalate for the Fast and Stable Zinc-Ion Storage

Application of polyoxometalates in third-generation solar cells

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Sodium ion intercalation and multi redox behavior of a Keggin type polyoxometalate during [PMo₁₀V₂O₄₀]⁵⁻to [PMo₁₀V₂O₄₀]²⁷⁻as a cathode material for Na-ion rechargeable batteries

Mo₁₀V₂@MIL-101: pseudo-capacitive and redox-active efficient anode material for high-rate lithium cluster batteries

Mo₁₀V₂@MIL-101: pseudo-capacitive and redox-active efficient anode material for high-rate lithium cluster batteries