Intermediate phases in sodium intercalation into MoS2 nanosheets and their implications for sodium-ion batteries

Li, Qianqian; Yao, Zhenpeng; Wu, Jinsong; Mitra, Sagar; Hao, Shiqiang; Sahu, Tuhin Subhra; Li, Yuan; Wolverton, Chris; Dravid, Vinayak P.

doi:10.1016/j.nanoen.2017.05.055

Cited by 156 publications

(127 citation statements)

References 58 publications

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“…When the proportion of intercalated Na ions exceeds 1.75, phase separation occurs along with structural collapse, leading to the final formation of Mo and Na 2 S nanocrystals. This result confirmed the occurrence of the intercalation‐assisted conversion reaction . Significantly, tremendous research has focused on increasing the interlayer distance of nanosized MoS 2 , which is expected to enhance sodiation/desodiation kinetics, leading to lower charge transfer resistance and more active sites for Na‐ion storage.…”

Section: Overview Of Metal Sulfide Anodes For Na‐ion Batteriessupporting

confidence: 73%

“…Molybdenum disulfide (MoS 2 ), the most representative layered transition metal chalcogenide, has attracted extensive attention due to its high theoretical capacity (670 mA h g −1 ) and structural peculiarities. The sodium‐storage mechanism during the discharge process follows Equations

true MoS_{2} + 0.5 Na \to Na_{0.5} MoS_{2} (0.85 V) (Intercalation)

true 2 Na_{0.5} MoS_{2} + (x - 0.5) Na \to Na_{x} MoS_{2} (x < 1.5, 0.75 V) (Intercalation)

true Na_{x} MoS_{2} + (4 - x) Na \vec{\leftarrow} Mo + 2 Na_{2} normalS (below 0.2 V) (Conversion)

…”

Section: Overview Of Metal Sulfide Anodes For Na‐ion Batteriesmentioning

confidence: 99%

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Sulfur‐Based Electrodes that Function via Multielectron Reactions for Room‐Temperature Sodium‐Ion Storage

et al. 2019

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Emerging rechargeable sodium‐ion storage systems—sodium‐ion and room‐temperature sodium–sulfur (RT‐NaS) batteries—are gaining extensive research interest as low‐cost options for large‐scale energy‐storage applications. Owing to their abundance, easy accessibility, and unique physical and chemical properties, sulfur‐based materials, in particular metal sulfides (MSx) and elemental sulfur (S), are currently regarded as promising electrode candidates for Na‐storage technologies with high capacity and excellent redox reversibility based on multielectron conversion reactions. Here, we present current understanding of Na‐storage mechanisms of the S‐based electrode materials. Recent progress and strategies for improving electronic conductivity and tolerating volume variations of the MSx anodes in Na‐ion batteries are reviewed. In addition, current advances on S cathodes in RT‐NaS batteries are presented. We outline a novel emerging concept of integrating MSx electrocatalysts into conventional carbonaceous matrices as effective polarized S hosts in RT‐NaS batteries as well. This comprehensive progress report could provide guidance for research toward the development of S‐based materials for the future Na‐storage techniques.

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Section: Overview Of Metal Sulfide Anodes For Na‐ion Batteriessupporting

confidence: 73%

true MoS_{2} + 0.5 Na \to Na_{0.5} MoS_{2} (0.85 V) (Intercalation)

true 2 Na_{0.5} MoS_{2} + (x - 0.5) Na \to Na_{x} MoS_{2} (x < 1.5, 0.75 V) (Intercalation)

true Na_{x} MoS_{2} + (4 - x) Na \vec{\leftarrow} Mo + 2 Na_{2} normalS (below 0.2 V) (Conversion)

…”

Section: Overview Of Metal Sulfide Anodes For Na‐ion Batteriesmentioning

confidence: 99%

Sulfur‐Based Electrodes that Function via Multielectron Reactions for Room‐Temperature Sodium‐Ion Storage

et al. 2019

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“…[1,2] With the ever-growing demand for stable high-capacity energy storage, new-generation metal-ion batteries beyond Li-ion batteries have been the subjects of extensive studies. [6][7][8] However,t he practical application of sodium-ion batteries (SIBs) is severely hindered by the higherd iffusion barrier and sluggish sodiation/desodiation. [6][7][8] However,t he practical application of sodium-ion batteries (SIBs) is severely hindered by the higherd iffusion barrier and sluggish sodiation/desodiation.…”

Section: Introductionmentioning

confidence: 99%

C@TiO₂/MoO₃ Composite Nanofibers with 1T‐Phase MoS₂ Nanograin Dopant and Stabilized Interfaces as Anodes for Li‐ and Na‐Ion Batteries

Zhou

Xin

et al. 2018

ChemSusChem

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Integrating layered nanostructured MoS2 with a structurally stable TiO2 backbone to construct reciprocal MoS2/TiO2‐based nanocomposites is an effective strategy. C@TiO2/MoO3 composite nanofibers doped with 1T‐phase MoS2 nanograins were fabricated by partially sulfurizing MoOx/TiO2 precursors. By controlling a suitable preoxidation temperature before severe thermolysis of polyvinylpyrrolidone (PVP), the MoOx/TiO2 precursors formed a polymer‐embedded array through coordination of the Mo source and pyrrolidyl groups of PVP. Sulfidation under water/solvent hydrothermal conditions led to partial formation of metallic 1T‐phase MoS2 from the MoOx precursor with preoxidation at 200 °C. After carbonization, the TiO2/MoO3/MoS2 nanograins were encapsulated in a carbon backbone in a vertical pattern, providing both chemical contact for confined electron transport and sufficient space to adapt to volume changes. The obtained carbon‐based platform not only has the advantages of an integral structure, but also exhibited ultrastable specific capacities of 540 and 251 mAh g−1 for Li‐ion batteries and Na‐ion batteries, respectively, after 100 cycles.

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“…[21] Dravida nd co-workersf urtherp roved that Na x MoS 2 nanocrystals could keep its layered structure before x reached 1.75. [40] The decomposition of K x MoS 2 took place at an early intercalating stage, where x was less than 0.73 in K x MoS 2 . [39] The intercalation process of Na + and K + in MoS 2 was more sluggish due to their larger ion radius and heavierm ass than Li + .T he dynamic Na + transport in MoS 2 interlayers could be studied using in situ TEM.…”

Section: Charge Storage In Sibs and Kibsmentioning

confidence: 99%

How does Molybdenum Disulfide Store Charge: A Minireview

et al. 2020

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MoS2 has attracted tremendous attention as a promising electrode material for rechargeable alkali metal ion (Li+, Na+, K+) batteries due to its high capacity and low cost. However, the practical application of MoS2 for energy storage has not been achieved yet, which is restricted by its intrinsic charge‐storage behavior. Debates still exist in this field although great efforts have been made to reveal alkali metal ion (Li+, Na+, K+) storage mechanism of MoS2. This Minireview aims to provide an analysis and summary of the related phase conversion, structure collapse, and loss of active material in a MoS2 electrode during the intercalation/extraction process of alkali metal ions. Hence, the fundamental understanding about the charge storage in MoS2 is of importance for the rational design of MoS2 electrodes with excellent electrochemical performance.

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Intermediate phases in sodium intercalation into MoS2 nanosheets and their implications for sodium-ion batteries

Cited by 156 publications

References 58 publications

Sulfur‐Based Electrodes that Function via Multielectron Reactions for Room‐Temperature Sodium‐Ion Storage

Sulfur‐Based Electrodes that Function via Multielectron Reactions for Room‐Temperature Sodium‐Ion Storage

C@TiO₂/MoO₃ Composite Nanofibers with 1T‐Phase MoS₂ Nanograin Dopant and Stabilized Interfaces as Anodes for Li‐ and Na‐Ion Batteries

How does Molybdenum Disulfide Store Charge: A Minireview

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Intermediate phases in sodium intercalation into MoS2 nanosheets and their implications for sodium-ion batteries

Cited by 156 publications

References 58 publications

Sulfur‐Based Electrodes that Function via Multielectron Reactions for Room‐Temperature Sodium‐Ion Storage

Sulfur‐Based Electrodes that Function via Multielectron Reactions for Room‐Temperature Sodium‐Ion Storage

C@TiO2/MoO3 Composite Nanofibers with 1T‐Phase MoS2 Nanograin Dopant and Stabilized Interfaces as Anodes for Li‐ and Na‐Ion Batteries

How does Molybdenum Disulfide Store Charge: A Minireview

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C@TiO₂/MoO₃ Composite Nanofibers with 1T‐Phase MoS₂ Nanograin Dopant and Stabilized Interfaces as Anodes for Li‐ and Na‐Ion Batteries