MoS2 Confined MXene Heterostructures as Electrode Material for Energy Storage Application

Chandran, M. Satheesh; Thomas, Anitta Rose; Raveendran, Asha; Vinoba, Mari; Bhagiyalakshmi, Margandan

doi:10.1016/j.est.2020.101446

Cited by 88 publications

(32 citation statements)

References 40 publications

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“…Comparatively, the CV curves of MoS 2 /Ti 3 C 2 T x displayed in Figure 5b show similar peak positions and intensities as those of MoS 2 /Ti 3 C 2 T x @NC due to their similar chemical components except NC. Figure S6 (Supporting Information) exhibits the CV curves of Ti 3 C 2 T x /NC, which manifest typical capacitive features originating from the Na + storage character in Ti 3 C 2 T x and NC [6b] . Accordingly, the cathodic/anodic peaks presented in the CV curves can be also detected on the voltage plateaus of discharge/charge profiles (Figure 5c, d), showing high consistency.…”

Section: Resultsmentioning

confidence: 75%

Crosslinking Nanoarchitectonics of Nitrogen‐doped Carbon/MoS₂ Nanosheets/Ti₃C₂T_x MXene Hybrids for Highly Reversible Sodium Storage

Tang

et al. 2021

ChemSusChem

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Although it is a promising sodium storage material due to its excellent electrochemical activity, small bandgap, and large interlayer spacing, layered molybdenum disulfide (MoS2) suffers from poor rate capability and degraded cycling life, resulting from its serious aggregation upon preparation, sluggish reaction kinetics, and structure expansion during cycling. To address these issues, a polyethyleneimine (PEI)‐assisted fabrication approach was developed for the rational synthesis of an interconnected framework with nitrogen‐doped carbon‐confined MoS2 nanosheets/Ti3C2Tx MXene (MoS2/Ti3C2Tx@NC), where the PEI could guide the uniform growth of MoS2 on Ti3C2Tx and the self‐generated NC simultaneously enhanced its synergistic coupling with MoS2/Ti3C2Tx, thus contributing to the improvement of charge transfer, diffusion kinetics, and structural integrity of the hybrid electrode. Consequently, the desired MoS2/Ti3C2Tx@NC delivered impressive sodium storage performance, demonstrating high reversible capacities of 397.3 and 206.8 mAh g−1 at 0.1 A g−1 after 100 cycles and 0.5 A g−1 after 500 cycles, respectively. Moreover, electrochemical kinetics analysis and charge storage mechanism manifested that high capacitive contribution, facilitated Na+ transport pathways, and synergistic electronic coupling between MoS2/Ti3C2Tx and NC contributed to the superior sodium storage performance.

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Section: Resultsmentioning

confidence: 75%

Crosslinking Nanoarchitectonics of Nitrogen‐doped Carbon/MoS₂ Nanosheets/Ti₃C₂T_x MXene Hybrids for Highly Reversible Sodium Storage

Tang

et al. 2021

ChemSusChem

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“…Furthermore, compared with the metal oxides, metal sulfides usually have higher electronic conduc tivity. For further improving the conductivity and buffering the volume change during the redox process, various metal sulfides, such as CoS 2 [217], NiS [ 218,219 ], Ni Co binary metal sulfides [220 223] and MoS 2 [224] have been combined with MXenes recently.…”

Section: Mxene/metal Sulfidesmentioning

confidence: 99%

Two-dimensional MXenes for electrochemical capacitor applications: Progress, challenges and perspectives

Zhu

Simon

et al. 2021

Energy Storage Materials

227

110

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MXene Electrochemkal capacitor Electrode materials MXene-based composites DevicesMXenes, a family of 20 transition metal carbides/nitrides with a general formula of M.+t X,, T x (n=l ~3), show promising potential for energy storage applications owing to their 20 lamellar structure, impressive density, metallic-liloe conductivity, tunable terminations and intercalation pseudocapacitance charge storage mechanism. Various combinations of transition metals, C and/or N, as well as different n layers result in a broad range of MXenes, but only about a small number have been prepared and used for capacitive energy storage applications (supercapacitors) so far, with Ti 3 Ci T x being the most studied one. This review summarizes the recent advances, achievements and challenges of MXenes for supercapacitors. The preparation methods, composition versatility, material and electrode architectures, chemical modification and hybridization with other active materials ofMX enes are presented. Moreover, the electrochemical characterizations and energy storage mechanisms of MXenes in aqueous and non-aqueous electrolytes are discussed, as well as the preparation of flexible and printable MXene based electrodes and devices. Flnally, perspective is also given, providing guidance for the future development of MXenes with advanced performances for designing the next generation of supercapacitors.

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“…) planes are downshied from 2q ¼ 9.5 to 6.6 and 2q ¼ 19.2 to 14.4 in Ti 3 C 2 T X MXene compared to that of Ti 3 AlC 2 , respectively, indicating that the interlayer spacing in MXene increased signicantly. The emerged peaks of (006) at 29.0 and (0010) at 34.0 imply the elimination of Al layers in Ti 3 AlC 2 and the formation of MXene 51,52. Fig.…”

mentioning

confidence: 90%

A two-dimensional Ti₃C₂T_X MXene@TiO₂/MoS₂ heterostructure with excellent selectivity for the room temperature detection of ammonia

et al. 2022

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MoS2 Confined MXene Heterostructures as Electrode Material for Energy Storage Application

Cited by 88 publications

References 40 publications

Crosslinking Nanoarchitectonics of Nitrogen‐doped Carbon/MoS₂ Nanosheets/Ti₃C₂T_x MXene Hybrids for Highly Reversible Sodium Storage

Crosslinking Nanoarchitectonics of Nitrogen‐doped Carbon/MoS₂ Nanosheets/Ti₃C₂T_x MXene Hybrids for Highly Reversible Sodium Storage

Two-dimensional MXenes for electrochemical capacitor applications: Progress, challenges and perspectives

A two-dimensional Ti₃C₂T_X MXene@TiO₂/MoS₂ heterostructure with excellent selectivity for the room temperature detection of ammonia

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MoS2 Confined MXene Heterostructures as Electrode Material for Energy Storage Application

Cited by 88 publications

References 40 publications

Crosslinking Nanoarchitectonics of Nitrogen‐doped Carbon/MoS2 Nanosheets/Ti3C2Tx MXene Hybrids for Highly Reversible Sodium Storage

Crosslinking Nanoarchitectonics of Nitrogen‐doped Carbon/MoS2 Nanosheets/Ti3C2Tx MXene Hybrids for Highly Reversible Sodium Storage

Two-dimensional MXenes for electrochemical capacitor applications: Progress, challenges and perspectives

A two-dimensional Ti3C2TX MXene@TiO2/MoS2 heterostructure with excellent selectivity for the room temperature detection of ammonia

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Crosslinking Nanoarchitectonics of Nitrogen‐doped Carbon/MoS₂ Nanosheets/Ti₃C₂T_x MXene Hybrids for Highly Reversible Sodium Storage

Crosslinking Nanoarchitectonics of Nitrogen‐doped Carbon/MoS₂ Nanosheets/Ti₃C₂T_x MXene Hybrids for Highly Reversible Sodium Storage

A two-dimensional Ti₃C₂T_X MXene@TiO₂/MoS₂ heterostructure with excellent selectivity for the room temperature detection of ammonia