Two-dimensional Mg0.2V2O5·nH2O nanobelts derived from V4C3 MXenes for highly stable aqueous zinc ion batteries

Guan, Jieduo; Shao, Lianyi; Yu, Lu; Wang, Shige; Shi, Xun; Cai, Junjie; Sun, Zhipeng

doi:10.1016/j.cej.2022.136502

Cited by 74 publications

(34 citation statements)

References 52 publications

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“…Furthermore, the pillars could hold up the layer structure during a large amount of Zn 2+ extraction, avoiding the structural collapse, thus guarantee long‐term stability. [ 9,10 ] For examples, Kundu et al proposed water molecules preintercalated Zn 0.25 V 2 O 5 ·nH 2 O cathode with an improved capacity retention of over 80% after 1000 cycles. [ 11 ] Yang et al synthesized Li x V 2 O 5 ·nH 2 O by chemical intercalation of Li + into the interlayer of V 2 O 5 ·nH2O, which exhibited stable cycling performance of 192 mAh g −1 after 1000 cycles at 10 A g −1 .…”

Section: Introductionmentioning

confidence: 99%

Quantitative Regulation of Interlayer Space of NH₄V₄O₁₀ for Fast and Durable Zn²⁺ and NH₄⁺ Storage

Liu

et al. 2023

Advanced Science

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Layered vanadium‐based oxides are the promising cathode materials for aqueous zinc‐ion batteries (AZIBs). Herein, an in situ electrochemical strategy that can effectively regulate the interlayer distance of layered NH4V4O10 quantitatively is proposed and a close relationship between the optimal performances with interlayer space is revealed. Specifically, via increasing the cutoff voltage from 1.4, 1.6 to 1.8 V, the interlayer space of NH4V4O10 can be well‐controlled and enlarged to 10.21, 11.86, and 12.08 Å, respectively, much larger than the pristine one (9.5 Å). Among them, the cathode being charging to 1.6 V (NH4V4O10‐C1.6), demonstrates the best Zn2+ storage performances including high capacity of 223 mA h g−1 at 10 A g−1 and long‐term stability with capacity retention of 97.5% over 1000 cycles. Such superior performances can be attributed to a good balance among active redox sites, charge transfer kinetics, and crystal structure stability, enabled by careful control of the interlayer space. Moreover, NH4V4O10‐C1.6 delivers NH4+ storage performances whose capacity reaches 296 mA h g−1 at 0.1 A g−1 and lifespan lasts over 3000 cycles at 5 A g−1. This study provides new insights into understand the limitation of interlayer space for ion storage in aqueous media and guides exploration of high‐performance cathode materials.

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Section: Introductionmentioning

confidence: 99%

Quantitative Regulation of Interlayer Space of NH₄V₄O₁₀ for Fast and Durable Zn²⁺ and NH₄⁺ Storage

Liu

et al. 2023

Advanced Science

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“…Developing renewable energy technologies is of great significance for lowering the growing rate of energy consumption and mitigating the deterioration of the living environment [1][2][3][4][5][6]. However, the sustainable energy sources, primarily solar and wind, have so far impeded the large-scale practical application of renewable energy.…”

Section: Introductionmentioning

confidence: 99%

Construction of Core–Shell CoMoO4@γ-FeOOH Nanosheets for Efficient Oxygen Evolution Reaction

Song

Sheng

et al. 2022

Nanomaterials

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The oxygen evolution reaction (OER) occurs at the anode in numerous electrochemical reactions and plays an important role due to the nature of proton-coupled electron transfer. However, the high voltage requirement and low stability of the OER dramatically limits the total energy converting efficiency. Recently, electrocatalysts based on multi-metal oxyhydroxides have been reported as excellent substitutes for commercial noble metal catalysts due to their outstanding OER activities. However, normal synthesis routes lead to either the encapsulation of excessively active sites or aggregation during the electrolysis. To this end, we design a novel core–shell structure integrating CoMoO4 as support frameworks covered with two-dimensional γ-FeOOH nanosheets on the surface. By involving CoMoO4, the electrochemically active surface area is significantly enhanced. Additionally, Co atoms immerge into the γ-FeOOH nanosheet, tuning its electronic structure and providing additional active sites. More importantly, the catalysts exhibit excellent OER catalytic performance, reducing overpotentials to merely 243.1 mV a versus 10 mA cm−2. The current strategy contributes to advancing the frontiers of new types of OER electrocatalysts by applying a proper support as a multi-functional platform.

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“…Furthermore, according to the formula i = k 1 v + k 2 v 1/2 , the current (i) at the specific potential can be separated into surfacecontrolled pseudocapacitive effect (k 1 v) and diffusion-controlled effect (k 2 v 1/2 ). [48][49][50][51] The ratio of pseudocapacitive contribution is obtained by formula fitting shown in Figures 4c,d, S12 and S13 (Supporting Information). As the scanning rate increases from 0.1 to 3 mV s −1 , the pseudocapacitive contribution of N3VPF@rGO are 56.9, 65.8, 69.5, 74.6, 85.1 and 88.3%, higher than those of N3VPF (43.6, 52.9, 59.5, 66.4, 73.9 and 80.6%) at the same scanning rates, respectively.…”

Section: Resultsmentioning

confidence: 99%

Polyanion‐Type Na₃V₂(PO₄)₂F₃@rGO with High‐Voltage and Ultralong‐Life for Aqueous Zinc Ion Batteries

Guan

Huang

Shao

et al. 2023

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Aqueous zinc ion batteries (AZIBs) have attracted much interest in the next generation of energy storage devices because of their elevated safety and inexpensive price. Polyanionic materials have been considered as underlying cathodes owing to the high voltage, large ionic channels and fast ionic kinetics. However, the low electronic conductivity limits their cycling stability and rate performance. Herein, mesoporous Na3V2(PO4)2F3 (N3VPF) nanocuboids with the size of 80–220 nm cladded by reduced graphene oxide (rGO) have been successfully prepared to form 3D composite (N3VPF@rGO) by a novel and fast microwave hydrothermal with subsequent calcination strategy. The enhanced conductivity, strengthened pseudocapacitive behaviors, enlarged DZn2+, and stable structure guarantee N3VPF@rGO with splendid Zn2+ storage performance, such as high capacity of 126.9 mAh g‐1 at 0.5 C (1 C = 128 mA g‐1), high redox potentials at 1.48/1.57 V, high rate capacity of 93.9 mAh g‐1 at 20 C (short charging time of 3 mins) and extreme cycling stability with capacity decay of 0.0074% per cycle after 5000 cycles at 15 C. The soft package batteries also present preeminent performance, demonstrating the practical application values. In situ X‐ray diffraction, ex situ transmission electron microscopy and X‐ray photoelectron spectroscopy reveal a reversible Zn2+ insertion/extraction mechanism.

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Two-dimensional Mg0.2V2O5·nH2O nanobelts derived from V4C3 MXenes for highly stable aqueous zinc ion batteries

Cited by 74 publications

References 52 publications

Quantitative Regulation of Interlayer Space of NH₄V₄O₁₀ for Fast and Durable Zn²⁺ and NH₄⁺ Storage

Quantitative Regulation of Interlayer Space of NH₄V₄O₁₀ for Fast and Durable Zn²⁺ and NH₄⁺ Storage

Construction of Core–Shell CoMoO4@γ-FeOOH Nanosheets for Efficient Oxygen Evolution Reaction

Polyanion‐Type Na₃V₂(PO₄)₂F₃@rGO with High‐Voltage and Ultralong‐Life for Aqueous Zinc Ion Batteries

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Two-dimensional Mg0.2V2O5·nH2O nanobelts derived from V4C3 MXenes for highly stable aqueous zinc ion batteries

Cited by 74 publications

References 52 publications

Quantitative Regulation of Interlayer Space of NH4V4O10 for Fast and Durable Zn2+ and NH4+ Storage

Quantitative Regulation of Interlayer Space of NH4V4O10 for Fast and Durable Zn2+ and NH4+ Storage

Construction of Core–Shell CoMoO4@γ-FeOOH Nanosheets for Efficient Oxygen Evolution Reaction

Polyanion‐Type Na3V2(PO4)2F3@rGO with High‐Voltage and Ultralong‐Life for Aqueous Zinc Ion Batteries

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Quantitative Regulation of Interlayer Space of NH₄V₄O₁₀ for Fast and Durable Zn²⁺ and NH₄⁺ Storage

Quantitative Regulation of Interlayer Space of NH₄V₄O₁₀ for Fast and Durable Zn²⁺ and NH₄⁺ Storage

Polyanion‐Type Na₃V₂(PO₄)₂F₃@rGO with High‐Voltage and Ultralong‐Life for Aqueous Zinc Ion Batteries