Hierarchical WSe2 nanoflower as a cathode material for rechargeable Mg-ion batteries

Xu, Jing; Wei, Zuoan; Zhang, Shaokang; Wang, Xuanxuan; Wang, Yihan; He, Mengyuan; Huang, Ke‐Jing

doi:10.1016/j.jcis.2020.12.083

Cited by 78 publications

(33 citation statements)

References 38 publications

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“…It will be interesting whether such concept can be applicable to other types of multivalent ions (Zn 2+ and Al 3+ ) for the TMD electrodes. Xu et al employed a simple one-step hydrothermal method to synthesize a flower-like tungsten diselenide (WSe 2 ) nanosheet [93]. Figure 8c shows the lattice spacings of 0.68 and 0.28 nm, which correspond to the d-spacing of the (002) and (100) crystal plane of WSe 2 , respectively.…”

Section: Magnesium-ion Batteries (Mibs)mentioning

confidence: 99%

“…In this hierarchical structure, the high surface-to-volume ratio offers abundant electrochemical active sites for ion storage, shortens the diffusion distance of Mg 2+ ions, and alleviates the volume change of layered TMD nanomaterials by the presence of large voids during the repetitive charge/discharge processes. In this context, the hierarchical WSe 2 nanoflower has been demonstrated as a promising material in terms of the specific capacity and capacity retention (Table 3) [93]. Moreover, the carbon coating of layered TMD nanomaterials is another effective strategy because it can give high electrical conductivity and good elasticity for TMD materials.…”

Section: Magnesium-ion Batteries (Mibs)mentioning

confidence: 99%

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Recent Advances in Transition Metal Dichalcogenide Cathode Materials for Aqueous Rechargeable Multivalent Metal-Ion Batteries

2021

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The generation of renewable energy is a promising solution to counter the rapid increase in energy consumption. Nevertheless, the availability of renewable resources (e.g., wind, solar, and tidal) is non-continuous and temporary in nature, posing new demands for the production of next-generation large-scale energy storage devices. Because of their low cost, highly abundant raw materials, high safety, and environmental friendliness, aqueous rechargeable multivalent metal-ion batteries (AMMIBs) have recently garnered immense attention. However, several challenges hamper the development of AMMIBs, including their narrow electrochemical stability, poor ion diffusion kinetics, and electrode instability. Transition metal dichalcogenides (TMDs) have been extensively investigated for applications in energy storage devices because of their distinct chemical and physical properties. The wide interlayer distance of layered TMDs is an appealing property for ion diffusion and intercalation. This review focuses on the most recent advances in TMDs as cathode materials for aqueous rechargeable batteries based on multivalent charge carriers (Zn2+, Mg2+, and Al3+). Through this review, the key aspects of TMD materials for high-performance AMMIBs are highlighted. Furthermore, additional suggestions and strategies for the development of improved TMDs are discussed to inspire new research directions.

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Section: Magnesium-ion Batteries (Mibs)mentioning

confidence: 99%

Section: Magnesium-ion Batteries (Mibs)mentioning

confidence: 99%

Recent Advances in Transition Metal Dichalcogenide Cathode Materials for Aqueous Rechargeable Multivalent Metal-Ion Batteries

2021

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“…[ 1 ] Nevertheless, the exploitation of low‐cost, high‐efficient, and robust electrocatalysts still remains a daunting challenge. [ 2,3 ] 2D transition metal dichalcogenides (TMDCs) are emerging as ideal non‐noble catalysts in view of their unique structures and fascinating physical/chemical properties [ 4–7 ] and are also demonstrating broad application potentials in the energy‐related fields, [ 8–18 ] electronic devices, [ 19–22 ] and molecular chemistries. [ 23,24 ] Notably, the scalable synthesis of 2D TMDCs is an essential prerequisite, and considerable efforts have also been made, including mechanical/chemical exfoliation, [ 25,26 ] wet chemical synthesis, [ 27–30 ] ion intercalation, [ 31–34 ] and chemical vapor deposition (CVD).…”

Section: Introductionmentioning

confidence: 99%

Gram‐Scale Synthesized Two‐Dimensional VSe₂ and SnSe₂ for Ultrahigh Electrocatalytic Sulfion Recycling

Wang

Cheng

et al. 2022

Adv Materials Inter

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properties [4][5][6][7] and are also demonstrating broad application potentials in the energyrelated fields, [8][9][10][11][12][13][14][15][16][17][18] electronic devices, [19][20][21][22] and molecular chemistries. [23,24] Notably, the scalable synthesis of 2D TMDCs is an essential prerequisite, and considerable efforts have also been made, including mechanical/chemical exfoliation, [25,26] wet chemical synthesis, [27][28][29][30] ion intercalation, [31][32][33][34] and chemical vapor deposition (CVD). [35][36][37][38] However, some bottlenecks have been proposed for these approaches, such as complex growth processes, highcost, low-yield, and environmental pollution. In this regard, it is highly desirable to develop a scalable and high-efficiency method to synthesize 2D TMDCs with a high yield.As a kind of high-efficient and clean secondary energy, H 2 is emerging as a splendid alternative for fossil fuels due to its high energy density and zero carbon emission. [39] Recent years have witnessed revolutionary progress in exploiting electrocatalysts for hydrogen/oxygen evolution reactions (HER/OER). [3,40] Nevertheless, in consideration of the incompatible activity over different pH ranges, the excellent HER and OER performances are not obtained in the same electrolytes for the most of reported electrocatalysts. [41] In addition, the development of OER is sluggish and consumes a mass of electricity input producing relatively low-value products. [42] It is thus highly urgent to explore new electrocatalysts for reducing electricity consumption and enhancing the H 2 evolution. Interestingly, the sulfion oxidation reaction (SOR) is much more thermodynamically favorable than OER in view of the fact that the S 2− is more prone to offer electrons. [43] Therefore, the electrocatalytic SOR should be investigated as the alternative of OER for the H 2 evolution by coupling with cathodic HER. Moreover, as a kind of toxic by-product in the industrial production, the S 2− should be removed or recycled. [44] However, the SOR performances of most of the reported electrocatalysts are still unsatisfactory.To tackle such issues, we design a high-throughput, highyield, and low-temperature strategy for the direct synthesis of 2D VSe 2 nanosheets and SnSe 2 nanoflowers, respectively. This provides us with an opportunity for the exploration of energy applications. In particular, a plentiful of wrinkles and unique hierarchical structures are observed in ultrathin VSe 2 nanosheets and SnSe 2 nanoflowers, respectively, which offerThe electrocatalytic sulfion (S 2− ) recycling and hydrogen (H 2 ) evolution play indispensable roles in converting waste into sustainable energy and boosting hydrogen economy. However, the development of such promising technologies is hindered by the lack of electrocatalysts with low-cost, high-efficient, and robust stability. 2D VSe 2 and SnSe 2 hold great application potentials in the energy-related fields yet face daunting challenges in terms of large-scale synthesis. Herein, a gram-scale and high-yield strate...

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“…[1][2][3][4][5][6] As an energy storage system, supercapacitors (SCs) have attracted a great deal of attention owing to their fast charge-discharge rate, excellent reversibility, long cycling stability, and low maintenance costs. [7][8][9] Despite tremendous developments, there has been a pressing need to bring in affordable and sustainable products of SCs. Forasmuch as that need existed, transition metal-based materials are considered an ideal energy storage materials, due to low cost and variety of oxidation states for efficient redox charge transfer.…”

Section: Introductionmentioning

confidence: 99%

Unprecedented Dual Role of Polyaniline for Enhanced Pseudocapacitance of Cobalt–Iron Layered Double Hydroxide

Mahmood

Zhao

Javed

et al. 2022

Macromol. Rapid Commun.

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Creating nanosized pores in layered materials can increase the abundant active surface area and boost potential applications of energy storage devices. Herein, a unique synthetic strategy based on polyaniline (PANI) doped 2D cobalt-iron layered double hydroxide (CoFe-LDH/P) nanomaterials are designed, and the formation of pores at low temperature (80 °C) is developed. It is found that the optimized concentration of PANI creates the nanopores on the CoFe-LDH nanosheets among all other polymers. The well-ordered pores of CoFe-LDH/P allow the high accessibility of the redox-active sites and promote effective ion diffusion. The optimized CoFe-LDH/P2 cathode reveals a specific capacitance 1686 (1096 Cg −1 ) and 1200 Fg −1 (720 Cg −1 ) at 1 and 30 Ag −1 respectively, a high rate capability (71.2%), and a long cycle life (98% over 10 000 cycles) for supercapacitor applications. Charge storage analysis suggests that the CoFe-LDH/P2 electrode displays a capacitive-type storage mechanism (69% capacitive at 1 mV s −1 ). Moreover, an asymmetric aqueous supercapacitor (CoFe-LDH/P2//AC) is fabricated, delivering excellent energy density (75.9 Wh kg −1 at 1124 W kg −1 ) with outstanding stability (97.5%) over 10 000 cycles. This work opens a new avenue for designing porous 2D materials at low temperature for aqueous energy storage devices.

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Hierarchical WSe2 nanoflower as a cathode material for rechargeable Mg-ion batteries

Cited by 78 publications

References 38 publications

Recent Advances in Transition Metal Dichalcogenide Cathode Materials for Aqueous Rechargeable Multivalent Metal-Ion Batteries

Recent Advances in Transition Metal Dichalcogenide Cathode Materials for Aqueous Rechargeable Multivalent Metal-Ion Batteries

Gram‐Scale Synthesized Two‐Dimensional VSe₂ and SnSe₂ for Ultrahigh Electrocatalytic Sulfion Recycling

Unprecedented Dual Role of Polyaniline for Enhanced Pseudocapacitance of Cobalt–Iron Layered Double Hydroxide

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Hierarchical WSe2 nanoflower as a cathode material for rechargeable Mg-ion batteries

Cited by 78 publications

References 38 publications

Recent Advances in Transition Metal Dichalcogenide Cathode Materials for Aqueous Rechargeable Multivalent Metal-Ion Batteries

Recent Advances in Transition Metal Dichalcogenide Cathode Materials for Aqueous Rechargeable Multivalent Metal-Ion Batteries

Gram‐Scale Synthesized Two‐Dimensional VSe2 and SnSe2 for Ultrahigh Electrocatalytic Sulfion Recycling

Unprecedented Dual Role of Polyaniline for Enhanced Pseudocapacitance of Cobalt–Iron Layered Double Hydroxide

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Product

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Gram‐Scale Synthesized Two‐Dimensional VSe₂ and SnSe₂ for Ultrahigh Electrocatalytic Sulfion Recycling