Design of Vertically Aligned Two-Dimensional Heterostructures of Rigid Ti3C2TX MXene and Pliable Vanadium Pentoxide for Efficient Lithium Ion Storage

Dai, Henghan; Zhao, Xi; Xu, Hai; Yang, Jia; Zhou, Jinyuan; Chen, Qiang; Sun, Geng Zhi

doi:10.1021/acsnano.1c10212

Cited by 46 publications

(28 citation statements)

References 56 publications

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“…Owing to their impressive electrochemical properties, versatile surface chemistry, tunable optical absorption, and solution processability, MXenes (e.g., Ti 3 C 2 T x , V 2 CT x , and Nb 2 CT x ) have been utilized in a plethora of applications, including energy storage, supercapacitors, energy harvesting, optoelectronics, electromagnetic interference shielding, sensing, and solar-driven applications . Several reports have emphasized the advantages of MXene for charge storage. − In 2017, a V 2 CT x MXene cathode-based aluminum-ion battery was reported, showing a specific capacity of 90 mAh g –1 after 100 cycles at a current density of 100 mA g –1 . This report pioneered the utilization of layered MXene as cathode materials for aluminum-ion batteries; however, the specific capacity and cyclic life are yet to be optimized.…”

Section: Introductionmentioning

confidence: 99%

Nb₂CT_x MXene Cathode for High-Capacity Rechargeable Aluminum Batteries with Prolonged Cycle Lifetime

Zeng

El‐Demellawi

et al. 2022

ACS Appl. Mater. Interfaces

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Aluminum-ion batteries have garnered significant interest as a potentially safer and cheaper replacement for conventional lithium-ion batteries, offering a shorter charging time and denser storage capacity. Nonetheless, the progress in this field is considerably hampered by the limited availability of suitable cathode materials that can sustain the reversible intercalation of Al 3+ /[AlCl 4 ] − ions, particularly after long cycles. Herein, we demonstrate that rechargeable Al batteries embedded with two-dimensional (2D) Nb 2 CT x MXene as a cathode material exhibit excellent capacity and exceptional long cyclic performance. We have successfully improved the initial electrochemical performance of Nb 2 CT x MXene after being properly delaminated to a single-layered microstructure and subjected to a postsynthesis calcining treatment. Compared to pristine Nb 2 CT x MXene, the Al battery embedded with the calcined Nb 2 CT x MXene cathode has, respectively, retained high capacities of 108 and 80 mAh g −1 after 500 cycles at current densities of 0.2 and 0.5 A g −1 in a wide voltage window (0.1−2.4 V). Noteworthily, the cyclic lifetime of Nb 2 CT x MXene was extended from ∼300 to >500 times after calcination. We reveal that attaining Nb 2 CT x nanosheets with a controllable d-spacing has promoted the migration of the [AlCl 4 ] − and Al 3+ ions in the MXene interlayers, leading to enhanced charge storage. Furthermore, we found out that the formation of niobium oxides and amorphous carbon after calcination probably benefits the electrochemical performance of Nb 2 CT x MXene electrode in Al batteries.

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Section: Introductionmentioning

confidence: 99%

Nb₂CT_x MXene Cathode for High-Capacity Rechargeable Aluminum Batteries with Prolonged Cycle Lifetime

Zeng

El‐Demellawi

et al. 2022

ACS Appl. Mater. Interfaces

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“…Meanwhile, the in situ formed lithium silicates with high Li + conductivity (e.g., Li 2 SiO 3 , 5.6 × 10 –7 S cm –1 ) work as a highway for rapid ion transport . The diffusion coefficient of Li + can be obtained according to the following equation where R , T , A , F , C , and σ are the ideal gas constant, absolute temperature, electrode area, Faraday’s constant, molar concentration of Li + , and Warburg impedance coefficient, respectively. , Accordingly, the diffusion coefficient of Li + is inversely proportional to the square of the Warburg impedance coefficient, which can be calculated from the slope of the ω –1/2 – Z ′ plot ( Z ′ = R s + R ct + σω –1/2 ). According to the electrochemical impedance spectroscopy (EIS) results shown in Figure a,b, the diffusion coefficient of Li + for SnO 2 /Si@G electrodes increases remarkably after 10 cycles.…”

Section: Resultsmentioning

confidence: 99%

“…Meanwhile, the in situ formed lithium silicates with high Li + conductivity (e.g., Li 2 SiO 3 , 5.6 × 10 −7 S cm −1 ) work as a highway for rapid ion transport. 58 The diffusion coefficient of Li + can be obtained according to the following equation 64 i k j j j y…”

Section: Resultsmentioning

confidence: 99%

Facile Synthesis of Hybrid Anodes with Enhanced Lithium-Storage Performance Realized by a “Synergistic Effect”

Ying

Yang

Huang

et al. 2022

ACS Appl. Mater. Interfaces

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Alloying-type anodes including Si- and Sn-based materials are considered the most exploitable anodes for high-performance lithium-ion batteries. However, problems of poor kinetics properties and structural failures such as grain pulverization and coarsening hinder their large-scale application. Herein, SnO2/Si@graphite hybrid anodes, with nano-SnO2 and nano-Si thoroughly mixed with each other and loaded onto graphite flakes, have been prepared by a facile ball milling method. Attributed to the “synergistic effect” between SnO2 and Si, the mechanical stability and kinetics properties can be remarkably enhanced. Furthermore, graphite substrate supplies a fast electrically conductive path and buffers the volume expansion of active particles. Accordingly, SnO2/Si@graphite delivers 798.9 mAh g–1 at 200 mA g–1 and maintains 550.8 mAh g–1 after 1000 cycles at 1 A g–1 in half cells. Impressively, a high energy density of 431.4 Wh kg–1 (based on the mass of anode and cathode) can be obtained in full cells when paired with the NCM622 cathode. This work presents an effective strategy to exploit high-performance alloying-type anodes for LIBs by designing hybrid materials with multiple active components.

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“…The devices based on MXene-GaN heterostructures exhibited good photodetection performance. Dai et al [ 60 ] designed vertical 2D Ti 3 C 2 T X MXene/V 2 O 5 heterostructures by freeze-drying for the application of membrane electrodes. Vertical channels were formed in the heterostructures to promote rapid electron and ion transport throughout the electrode.…”

Section: Structure Of Mxene-based Heterostructuresmentioning

confidence: 99%

Recent Research Progress in the Structure, Fabrication, and Application of MXene-Based Heterostructures

Yang

Chen

et al. 2022

Nanomaterials

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Two-dimensional (2D) materials have received increasing attention in the scientific research community owing to their unique structure, which has endowed them with unparalleled properties and significant application potential. However, the expansion of the applications of an individual 2D material is often limited by some inherent drawbacks. Therefore, many researchers are now turning their attention to combine different 2D materials, making the so-called 2D heterostructures. Heterostructures can integrate the merits of each component and achieve a complementary performance far beyond a single part. MXene, as an emerging family of 2D nanomaterials, exhibits excellent electrochemical, electronic, optical, and mechanical properties. MXene-based heterostructures have already been demonstrated in applications such as supercapacitors, sensors, batteries, and photocatalysts. Nowadays, increasing research attention is attracted onto MXene-based heterostructures, while there is less effort spent to summarize the current research status. In this paper, the recent research progress of MXene-based heterostructures is reviewed, focusing on the structure, common preparation methods, and applications in supercapacitors, sensors, batteries, and photocatalysts. The main challenges and future prospects of MXene-based heterostructures are also discussed to provide valuable information for the researchers involved in the field.

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Design of Vertically Aligned Two-Dimensional Heterostructures of Rigid Ti₃C₂T_X MXene and Pliable Vanadium Pentoxide for Efficient Lithium Ion Storage

Cited by 46 publications

References 56 publications

Nb₂CT_x MXene Cathode for High-Capacity Rechargeable Aluminum Batteries with Prolonged Cycle Lifetime

Nb₂CT_x MXene Cathode for High-Capacity Rechargeable Aluminum Batteries with Prolonged Cycle Lifetime

Facile Synthesis of Hybrid Anodes with Enhanced Lithium-Storage Performance Realized by a “Synergistic Effect”

Recent Research Progress in the Structure, Fabrication, and Application of MXene-Based Heterostructures

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Design of Vertically Aligned Two-Dimensional Heterostructures of Rigid Ti3C2TX MXene and Pliable Vanadium Pentoxide for Efficient Lithium Ion Storage

Cited by 46 publications

References 56 publications

Nb2CTx MXene Cathode for High-Capacity Rechargeable Aluminum Batteries with Prolonged Cycle Lifetime

Nb2CTx MXene Cathode for High-Capacity Rechargeable Aluminum Batteries with Prolonged Cycle Lifetime

Facile Synthesis of Hybrid Anodes with Enhanced Lithium-Storage Performance Realized by a “Synergistic Effect”

Recent Research Progress in the Structure, Fabrication, and Application of MXene-Based Heterostructures

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Design of Vertically Aligned Two-Dimensional Heterostructures of Rigid Ti₃C₂T_X MXene and Pliable Vanadium Pentoxide for Efficient Lithium Ion Storage

Nb₂CT_x MXene Cathode for High-Capacity Rechargeable Aluminum Batteries with Prolonged Cycle Lifetime

Nb₂CT_x MXene Cathode for High-Capacity Rechargeable Aluminum Batteries with Prolonged Cycle Lifetime