Boosting aqueous zinc-ion storage in MoS2 via controllable phase

Liu, Jiapeng; Xu, Pengtao; Liang, Junmei; Liu, Huibin; Peng, Wenchao; Li, Yang; Zhang, Fengbao

doi:10.1016/j.cej.2020.124405

Cited by 132 publications

(111 citation statements)

References 64 publications

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Section: Other Tmdsmentioning

confidence: 99%

“…It was shown that 2H MoS 2 has a significant Zn 2+ intercalation energy barrier that can severely hinder the diffusion of Zn 2+ into the host material so as to achieve Zn 2+ storage. [ 39 ] Another contributing factor toward the high Zn 2+ intercalation energy barrier, as reported by Liang et al., is the limitation of the void separation in MoS 2 that results in the high energy penalty and poor Zn 2+ diffusion. [ 40 ] Hydrated Zn 2+ can be as large as 0.55 nm.…”

Section: Challenges and Current Progress Of Mos2 And Tmds As Zib Cathodementioning

confidence: 99%

“…that different content of phase in MoS 2 , i.e., 1T and 2H, could potentially lead to drastic electrochemical performance. [ 39 ] It was revealed in their work that despite the similar interlayer spacing for both as‐prepared MoS 2 samples, 2H MoS 2 possessed higher Zn 2+ diffusion energy barrier as compared to 1T MoS 2 , which could be the main factor toward the significantly different electrochemical performances. It was also demonstrated that the diffusion energy barrier for 1T MoS 2 could be further reduced by increasing the interlayer spacing slightly.…”

Section: Challenges and Current Progress Of Mos2 And Tmds As Zib Cathodementioning

confidence: 99%

“…[ 111 ] As shown in Figure , phase control of MoS 2 between 1T and 2H can greatly modified the Zn 2+ diffusion energy barrier. [ 39 ] When calculated against the simulated Zn diffusion pathways as shown in Figure 8a, the Zn energy barrier for 2H MoS 2 is generally higher as compared to 1T MoS 2 , regardless of the interlayer spacing (Figure 8b). [ 39 ] Hence, this result shows that phase control of TMDs could be a viable method to activate the materials toward reversible Zn 2+ storage.…”

Section: Proposed Modification Strategies For Mos2 and Tmds Toward Fumentioning

confidence: 99%

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Unraveling MoS₂ and Transition Metal Dichalcogenides as Functional Zinc‐Ion Battery Cathode: A Perspective

et al. 2020

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Transition metal dichalcogenide (TMD) has been widely studied as promising material in a wide variety of energy-related applications. [14-17] TMD, which comprises of transition metal (M) and chalcogen (X), is often regarded as an inorganic analogue to the graphite. Each TMD layer, with the stoichiometric composition of MX 2 , is arranged with a central layer of M atoms that is sandwiched with two layers of X atoms. As such, each TMD layer can be considered to be three atoms thick (X-M-X configuration). One of the interesting aspects of TMD is the interlayer bonding between two X-M-X layers, whereby weak Van der Waals interactions are typically responsible for holding the structure in place. [18-20] The existence of this interlayer bonding allows the exfoliation of bulk TMD into single-or few-layer TMD. [21-23] Furthermore, due to this unique 2D configuration, the interlayer spacing of TMD is available for the accommodation of intercalating ion. This is particularly suitable for alternative battery technique that employs larger hydrated metal ions, i.e., ZIB. [24-27] Among the TMD family, MoS 2 is perhaps the most representative member with an interlayer spacing of 0.62 nm, which, in theory, should be able to accommodate a diffusing hydrated Zn 2+ in its framework. Despite the suitable interlayer spacing of MoS 2 for Zn 2+ storage (when we consider Mo-Mo layer separation), there are still limited reports that can successfully demonstrate MoS 2 as viable ZIB cathode. Ironically, most reports on MoS 2 as ZIB cathode have pointed toward the poor Zn 2+ storage by pristine MoS 2 (≈10-40 mAh g −1), which suggests the incompatibility of MoS 2 as ZIB cathode despite the sufficient interlayer spacing. [28] Such perplexity between the seemingly suitability of these TMDs as ZIB cathode from the theoretical perspective and the poor Zn 2+ storage performance from the actual employment of TMDs as ZIB cathode deserves significant research attention. In this perspective review, we will discuss the main challenge of employing MoS 2 and TMDs as ZIB cathode, and we will summarize the recent development of MoS 2 and TMDs in ZIB research. The main focus of this perspective review is to propose possible modification strategies for MoS 2 and TMDs so as to elicit reasonable Zn 2+ storage ability in this material family. Four key modification strategies are identified, i.e., 1) interlayer engineering, 2) defect engineering, 3) hybridization, and 4) phase engineering, which could "activate" these pristine MoS 2 and TMDs toward satisfactory Zn 2+ storage. Lastly, we The zinc-ion battery (ZIB) is considered as one of the most important alternative battery chemistries to date. However, one of the challenges in ZIB development is the limited selection of materials that can exhibit satisfactory Zn 2+ storage. Transition metal dichalcogenides (TMDs) are widely investigated in energy-related applications due to their distinct physical and chemical properties. In particular, the wide interlayer spacings for these TMDs are particularly attractive a...

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Section: Other Tmdsmentioning

confidence: 99%

Section: Challenges and Current Progress Of Mos2 And Tmds As Zib Cathodementioning

confidence: 99%

Section: Challenges and Current Progress Of Mos2 And Tmds As Zib Cathodementioning

confidence: 99%

Section: Proposed Modification Strategies For Mos2 and Tmds Toward Fumentioning

confidence: 99%

See 2 more Smart Citations

Unraveling MoS₂ and Transition Metal Dichalcogenides as Functional Zinc‐Ion Battery Cathode: A Perspective

et al. 2020

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“…Similar tests by different groups further confirmed the effectiveness of this promising phase engineering method. [130][131][132][133] In 2015, Chhowalla et al fabricated monolayered 1T MoS 2 with Li + intercalants, [18] which could be simply collected and restacked as a flexible supercapacitor electrode ( Figure 3g) without using any binding additives, delivering the high capacitance in various aqueous electrolytes (H + , Li + , Na + , and K + ). The phase-engineered 1T MoS 2 was also able to deliver a stable high energy storage capacity in a nonaqueous organic electrolyte.…”

Section: Phase Engineeringmentioning

confidence: 99%

Engineering 2D Materials: A Viable Pathway for Improved Electrochemical Energy Storage

Lin

Chen

Liu

et al. 2020

Advanced Energy Materials

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Figure 1. a) The Ragone plots showing specific power against specific energy of traditional supercapacitors and electrochemical batteries. The arrows show the trends toward greater specific power for batteries and specific energy for supercapacitors. The time constant represents the charge/discharge rate. LTO: lithium titanium oxide. Reproduced with permission. [4] Copyright 2020, Springer Nature. b) Carrier mobility of some 2D materials. [41-53] c) A schematic diagram showing graphene nanoribbon with armchair and zigzag edges. The-C-OH and-CH terminated zigzag edges have similar band structure, while the-CH 2 , C=O, and C 2 O terminated zigzag edges are all metallic. d) Comparison of the areal capacitance values between graphene plane, armchair, and zigzag edges, with and without considering the SASA. e) A schematic diagram showing the synthesis route of full zigzag graphene nanoribbon. The U-shaped monomer 1 and the monomer 1a were designed for the synthesis. Reproduced with permission. [60] Copyright 2016, Springer Nature. f,g) High-resolution transmission electron microscopy (HRTEM) images of activated graphene sheets with f) wrinkled surface and g) pentagon-heptagon structure. Reproduced with permission.

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Activated Proton Storage in Molybdenum Selenide through Electronegativity Regulation

Zhao

Liu

Zhong

et al. 2022

Adv Funct Materials

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Layered transition metal dichalcogenides (TMDs) are promising candidates for aqueous zinc-based batteries owing to the large interlayer distance. Nevertheless, the low specific capacity of unmodified TMDs due to the high binding energy between host materials and carriers in electrolytes hinder their further development. Herein, a simple method to incorporate oxygen is reported to enhance the specific capacity of MoSe 2 . The in situ and ex situ characterization results confirm that the oxygen incorporated MoSe 2 experiences proton-dominated insertion electrochemistry during cycling. In addition, the theoretical calculation results demonstrate that the oxygen atoms with high electronegativity can effectively reduce the binding energy of adsorbing H + and change charge distribution in the interlayer. As a result, incorporating oxygen significantly promotes H + adsorption and diffusion, and thus greatly increases the specific capacity of MoSe 2 . This study provides an effective strategy to facilitate the kinetics of TMDs, and thus achieve highperformance aqueous zinc-based batteries.

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Boosting aqueous zinc-ion storage in MoS2 via controllable phase

Cited by 132 publications

References 64 publications

Unraveling MoS₂ and Transition Metal Dichalcogenides as Functional Zinc‐Ion Battery Cathode: A Perspective

Unraveling MoS₂ and Transition Metal Dichalcogenides as Functional Zinc‐Ion Battery Cathode: A Perspective

Engineering 2D Materials: A Viable Pathway for Improved Electrochemical Energy Storage

Activated Proton Storage in Molybdenum Selenide through Electronegativity Regulation

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Boosting aqueous zinc-ion storage in MoS2 via controllable phase

Cited by 132 publications

References 64 publications

Unraveling MoS2 and Transition Metal Dichalcogenides as Functional Zinc‐Ion Battery Cathode: A Perspective

Unraveling MoS2 and Transition Metal Dichalcogenides as Functional Zinc‐Ion Battery Cathode: A Perspective

Engineering 2D Materials: A Viable Pathway for Improved Electrochemical Energy Storage

Activated Proton Storage in Molybdenum Selenide through Electronegativity Regulation

Contact Info

Product

Resources

About

Unraveling MoS₂ and Transition Metal Dichalcogenides as Functional Zinc‐Ion Battery Cathode: A Perspective

Unraveling MoS₂ and Transition Metal Dichalcogenides as Functional Zinc‐Ion Battery Cathode: A Perspective