MXene-based heterostructures: Current trend and development in electrochemical energy storage devices

Hussain, Iftikhar; Lamiel, Charmaine; Javed, Muhammad Sufyan; Ahmad, Muhammad; Sahoo, Sumanta; Chen, Xi; Qin, Ning; Iqbal, Sarmad; Gu, Shuai; Li, Yuxiang; Chatzichristodoulou, Christodoulos; Zhang, Kaili

doi:10.1016/j.pecs.2023.101097

Cited by 55 publications

(16 citation statements)

References 278 publications

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“…12,14,15 The unique crystal structure endows MXenes with good conductive behavior and redox-active surface, which make them promising for supercapacitor electrode materials. 16,17 Their supercapacitive performance can be further boosted via functional group modification, interlayer path design and heteroatom doping. 18–22 When heteroatoms are incorporated into MXenes, M, X, and T are three kinds of available doping sites.…”

Section: Introductionmentioning

confidence: 99%

Selective grafting of phosphorus onto Ti₃C₂T_x MXene enables a two-proton process and enhanced charge storage

Li,

Fan,

Xiong

et al. 2024

J. Mater. Chem. A

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Section: Introductionmentioning

confidence: 99%

Selective grafting of phosphorus onto Ti₃C₂T_x MXene enables a two-proton process and enhanced charge storage

Li,

Fan,

Xiong

et al. 2024

J. Mater. Chem. A

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“…[11] Varied approaches may lead to different MXene structures and surface chemical states which may have a significant impact on the electrochemical behavior and performance of MXenes. [12] Furthermore, MXenes have controllable porosity, good dispersibility in various solvents, and excellent mechanical flexibility. [7,13] Due to the hydrophilicity and electrostatic repulsion between lamellar materials, MXene aqueous solutions are very stable and show a pronounced Tyndall effect.…”

Section: Introductionmentioning

confidence: 99%

“…These functionalities are responsible for achieving high volumetric capacitance under high energy and power densities [11] . Varied approaches may lead to different MXene structures and surface chemical states which may have a significant impact on the electrochemical behavior and performance of MXenes [12] . Furthermore, MXenes have controllable porosity, good dispersibility in various solvents, and excellent mechanical flexibility [7,13] .…”

Section: Introductionmentioning

confidence: 99%

Recent Advances of Flexible MXene and its Composites for Supercapacitors

Jiang,

Lu,

Song

2024

Chemistry A European J

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MXenes have unique properties such as high electrical conductivity, excellent mechanical properties, rich surface chemistry, and convenient processability. These characteristics make them ideal for producing flexible materials with tunable microstructures. This paper reviews the laboratory research progress of flexible MXene and its composite materials for supercapacitors. And introduces the general synthesis method of MXene, as well as the preparation and properties of flexible MXene. By analyzing the current research status, the electrochemical reaction mechanism of MXene was explained from the perspectives of electrolyte and surface terminating groups. This review particularly emphasizes the composite methods of freestanding flexible MXene composite materials. The review points out that the biggest problem with flexible MXene electrodes is severe self‐stacking, which reduces the number of chemically active sites, weakens ion accessibility, and ultimately lowers electrochemical performance. Therefore, it is necessary to composite MXene with other electrode materials and design a good microstructure. This review affirms the enormous potential of flexible MXene and its composite materials in the field of supercapacitors. In addition, the challenges and possible improvements faced by MXene based materials in practical applications were also discussed.

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“…A member of 2D layered materials, MXenes (M n+1 X n T x , where M represents the transition metals including Ti, Nb, Zr, Cr, etc. ; X stands for C or N; and T x is designated for terminated functional groups such as fluorine (-F), hydroxyl (-OH), or oxygen (-O)) have been used for outstanding achievements in different fields, such as gas sensors [21][22][23][24][25], energy storage devices [26], super-capacitors [27], and humidity sensing [28]. Among the MXene family, Ti 3 C 2 T x , which was discovered in 2011, comprises transition metal carbides and nitrides that have received great attraction from researchers because of their relatively low density (4.91 g/cm −3 ) [29], sizeable BET-specific surface area, unique tunable electronic structure, excellent hydrophilicity features, and abundant surface terminals [30].…”

Section: Introductionmentioning

confidence: 99%

H2S/Butane Dual Gas Sensing Based on a Hydrothermally Synthesized MXene Ti3C2Tx/NiCo2O4 Nanocomposite

Sadaf,

Zhang,

Akhtar

2023

Molecules

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Real-time sensing of hydrogen sulfide (H2S) at room temperature is important to ensure the safety of humans and the environment. Four kinds of different nanocomposites, such as MXene Ti3C2Tx, Ti3AlC2, WS2, and MoSe2/NiCo2O4, were synthesized using the hydrothermal method in this paper. Initially, the intrinsic properties of the synthesized nanocomposites were studied using different techniques. P-type butane and H2S-sensing behaviors of nanocomposites were performed and analyzed deeply. Four sensor sheets were fabricated using a spin-coating method. The gas sensor was distinctly part of the chemiresistor class. The MXene Ti3C2Tx/NiCo2O4-based gas sensor detected the highest response (16) toward 10 ppm H2S at room temperature. In comparison, the sensor detected the highest response (9.8) toward 4000 ppm butane at 90 °C compared with the other three fabricated sensors (Ti3AlC2, WS2, and MoSe2/NiCo2O4). The MXene Ti3C2Tx/NiCo2O4 sensor showed excellent responses, minimum limits of detection (0.1 ppm H2S and 5 ppm butane), long-term stability, and good reproducibility compared with the other fabricated sensors. The highest sensing properties toward H2S and butane were accredited to p–p heterojunctions, higher BET surface areas, increased oxygen species, etc. These simply synthesized nanocomposites and fabricated sensors present a novel method for tracing H2S and butane at the lowest concentration to prevent different gas-exposure-related diseases.

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MXene-based heterostructures: Current trend and development in electrochemical energy storage devices

Cited by 55 publications

References 278 publications

Selective grafting of phosphorus onto Ti₃C₂T_x MXene enables a two-proton process and enhanced charge storage

Selective grafting of phosphorus onto Ti₃C₂T_x MXene enables a two-proton process and enhanced charge storage

Recent Advances of Flexible MXene and its Composites for Supercapacitors

H2S/Butane Dual Gas Sensing Based on a Hydrothermally Synthesized MXene Ti3C2Tx/NiCo2O4 Nanocomposite

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MXene-based heterostructures: Current trend and development in electrochemical energy storage devices

Cited by 55 publications

References 278 publications

Selective grafting of phosphorus onto Ti3C2Tx MXene enables a two-proton process and enhanced charge storage

Selective grafting of phosphorus onto Ti3C2Tx MXene enables a two-proton process and enhanced charge storage

Recent Advances of Flexible MXene and its Composites for Supercapacitors

H2S/Butane Dual Gas Sensing Based on a Hydrothermally Synthesized MXene Ti3C2Tx/NiCo2O4 Nanocomposite

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Product

Resources

About

Selective grafting of phosphorus onto Ti₃C₂T_x MXene enables a two-proton process and enhanced charge storage

Selective grafting of phosphorus onto Ti₃C₂T_x MXene enables a two-proton process and enhanced charge storage