A large area mesh-like MoS2 with an expanded interlayer distance synthesized by one-pot method and lithium storage performance

Zhang, Yahui; Liu, Ronghui; Zhao, Lijia; Xu, Li-jiong; Luo, Shaohua; Wang, Qing; Liu, Xin

doi:10.1016/j.jelechem.2020.114428

Cited by 12 publications

(4 citation statements)

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“…Currently, it is hard to synthesize pure and environmentally stable 1T-MoS 2 . , In addition, 1T-phase MoS 2 is often accompanied by volume expansion during the charging and discharging process when it is applied as the cathode of AZIBs. Therefore, constructing two-dimensional (2D) heterostructure composites has often been used to stabilize the structure and enhance the overall performance of 1T-MoS 2 , such as MoS 2 @rGO. , In the 2D heterostructure composites, the interfacial interaction between MoS 2 and other components with prominent advantages not only facilitates the electron transfer and structural stability, but also ensures sufficient electrode/electrolyte contact …”

Section: Introductionmentioning

confidence: 99%

“…Therefore, constructing two-dimensional (2D) heterostructure composites has often been used to stabilize the structure and enhance the overall performance of 1T-MoS 2 , such as MoS 2 @rGO. 23,24 In the 2D heterostructure composites, the interfacial interaction between MoS 2 and other components with prominent advantages not only facilitates the electron transfer and structural stability, but also ensures sufficient electrode/electrolyte contact. 3 Currently, there are studies devoted to the synthesis of MoS 2 /Ti 3 C 2 T x heterostructures as electrode materials, using the synergistic effect to enhance energy storage properties and compensate for drawbacks such as poor electrical conductivity.…”

Section: Introductionmentioning

confidence: 99%

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Mn²⁺-Doped MoS₂/MXene Heterostructure Composites as Cathodes for Aqueous Zinc-Ion Batteries

Yang,

Mou,

Xiao

et al. 2023

ACS Appl. Mater. Interfaces

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Typical layered transition-metal chalcogenide materials, especially MoS2, are gradually attracting widespread attention as aqueous Zn-ion battery (AZIB) cathode materials by virtue of their two-dimensional structure, tunable band gap, and abundant edges. The metastable phase 1T-MoS2 exhibits better electrical conductivity, electrochemical activity, and zinc storage capacity compared to the thermodynamically stable 2H-MoS2. However, 1T-MoS2 is still limited by the phase stability and layered structure destruction for AZIB application. Thus, a three-dimensional interconnected network heterostructure (Mn-MoS2/MXene) consisting of Mn2+-doped MoS2 and MXene with a high percentage of 1T phase (82.9%) was synthesized by hydrothermal methods and investigated as the cathode for AZIBs. It was found that S–Mn–S covalent bonds between MoS2 interlayers and Ti–O–Mo bonds at heterogeneous interfaces can act as “electron bridges” to facilitate electron and charge transfer. And the doping of Mn2+ and the combination of MXene not only expanded the interlayer spacing of MoS2 but also maintained the metastable structure of 1T-MoS2 nanosheets, acting to reduce the activation energy for Zn2+ intercalation and enhance specific capacity. The obtained Mn-MoS2/MXene contains more 1T-MoS2 and provides an improved specific capacity of 191.7 mAh g–1 at 0.1 A g–1. Compared with Mn-MoS2 and pure MoS2, it also exhibits enhanced cycling stability with a capacity retention of 80.3% after 500 cycles at 1 A g–1. Besides, the conductivity of Mn-MoS2/MXene is significantly improved, which induces a lower activation energy of the zinc ions during intercalation/deintercalation.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Mn²⁺-Doped MoS₂/MXene Heterostructure Composites as Cathodes for Aqueous Zinc-Ion Batteries

Yang,

Mou,

Xiao

et al. 2023

ACS Appl. Mater. Interfaces

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“…[32][33][34] Meanwhile, Ni O bond present in Li 2 MnSiO 4 as a result of the substitution is stronger than the Mn O bond and also, the doped Ni in the Mn position can reduce the binding force between the C O bond, and improve the intrinsic conductivity of the cathode material. [35][36][37][38][39][40] Its excellent discharge storage capacity, rate performance, and Li diffusion properties provide well electrochemical Li storage performance for this material. Therefore, the Mn-site nickel doping on dualphase coexisting Li 2 MnSiO 4 is suitable for raising the electrochemical property and structural stability of the cathode material.…”

Section: Introductionmentioning

confidence: 99%

“…Also, substituting Ni 2+ , which has a close radius with Mn 2+ , would not cause excessive crystalline distortion 32‐34 . Meanwhile, Ni–O bond present in Li 2 MnSiO 4 as a result of the substitution is stronger than the Mn–O bond and also, the doped Ni in the Mn position can reduce the binding force between the C–O bond, and improve the intrinsic conductivity of the cathode material 35‐40 . Its excellent discharge storage capacity, rate performance, and Li diffusion properties provide well electrochemical Li storage performance for this material.…”

Section: Introductionmentioning

confidence: 99%

Dual‐phase structure design of Mn‐site nickel doping Li ₂ MnSiO ₄ @C cathode material for improved electrochemical lithium storage performance

Yang

Wang

Luo

et al. 2021

Intl J of Energy Research

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The lithium transition metal orthosilicates (Li 2 MnSiO 4 ) compounds are considered key materials for the next-generation lithium-ion batteries (LIBs). However, they exhibit poor electronic conductivity and structural stability. Herein, the dual-phase (Pmn2 1, and Pn) coexisting Li 2 Mn 1−x Ni x SiO 4 @C is prepared successfully via a two-step calcination process to address the aforementioned problems. The orthorhombic Pmn2 1 and Pn phase are expected to bring well solid-state Li diffusion properties (D Li + ) and structural stability for electrode material, respectively. Also, the Ni doping and carbon coating are expected to raise electronic conductivity. Then, the electrochemical performance of LIBs utilizing LiMn 0.995 Ni 0.005 SiO 4 @C, LiMn 0.985 Ni 0.015 SiO 4 @C, and LiMn 0.92 Ni 0.08 SiO 4 @C (ZNi-02 to ZNi-04) as cathode materials are investigated and compared with that of the LiB using Li 2 MnSiO 4 @C (ZNi-01). The ZNi-04 sample-based LiB shows well D Li + and a peak discharge capacity as high as 188.4 mAh g −1 . In addition, the ZNi-04 sample can still maintain a capacity of about 80 mAh g −1 at rate of 8 C. Such excellent electrochemical performance is ascribed to the synergistic effect of the dual-phase coexistence, the proper amount of Ni doping, and surface coating of carbon, which enhances the electrical conductivity and structural stability. Thus, Li 2 Mn 1−x Ni x SiO 4 @C has broad application chances as a high-performance LIBs electrode material.

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Y and Sb co-doped Li7La3Zr2O12 electrolyte for all solid-state lithium batteries

Cao

et al. 2021

Ionics

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A large area mesh-like MoS2 with an expanded interlayer distance synthesized by one-pot method and lithium storage performance

Cited by 12 publications

References 53 publications

Mn²⁺-Doped MoS₂/MXene Heterostructure Composites as Cathodes for Aqueous Zinc-Ion Batteries

Mn²⁺-Doped MoS₂/MXene Heterostructure Composites as Cathodes for Aqueous Zinc-Ion Batteries

Dual‐phase structure design of Mn‐site nickel doping Li ₂ MnSiO ₄ @C cathode material for improved electrochemical lithium storage performance

Y and Sb co-doped Li7La3Zr2O12 electrolyte for all solid-state lithium batteries

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A large area mesh-like MoS2 with an expanded interlayer distance synthesized by one-pot method and lithium storage performance

Cited by 12 publications

References 53 publications

Mn2+-Doped MoS2/MXene Heterostructure Composites as Cathodes for Aqueous Zinc-Ion Batteries

Mn2+-Doped MoS2/MXene Heterostructure Composites as Cathodes for Aqueous Zinc-Ion Batteries

Dual‐phase structure design of Mn‐site nickel doping Li 2 MnSiO 4 @C cathode material for improved electrochemical lithium storage performance

Y and Sb co-doped Li7La3Zr2O12 electrolyte for all solid-state lithium batteries

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Mn²⁺-Doped MoS₂/MXene Heterostructure Composites as Cathodes for Aqueous Zinc-Ion Batteries

Mn²⁺-Doped MoS₂/MXene Heterostructure Composites as Cathodes for Aqueous Zinc-Ion Batteries

Dual‐phase structure design of Mn‐site nickel doping Li ₂ MnSiO ₄ @C cathode material for improved electrochemical lithium storage performance