Maximizing the ion accessibility and high mechanical strength in nanoscale ion channel MXene electrodes for high-capacity zinc-ion energy storage

Cheng, Yongfa; Xie, Yimei; Yan, Shuwen; Liu, Zunyu; Ma, Yanan; Yang, Yue; Wang, Jianbo; Gao, Yuan; Li, Luying

doi:10.1016/j.scib.2022.10.003

Cited by 33 publications

(11 citation statements)

References 62 publications

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“…The thickness of the prepared MXene/rGO aerogel is 14–20-times larger than those of the corresponding untreated films with the same GO/rGO ratio. X-ray photoelectron spectroscopy (XPS) (Figure B) shows the elemental content change during processing. , Increased C 1s and O 1s signals indicated a satisfactory incorporation of GO in MXenes after mixing with GO. A decreased signal of O 1s after gas foaming could be attributed to the reduction of GO to rGO.…”

Section: Resultsmentioning

confidence: 99%

“…X-ray photoelectron spectroscopy (XPS) (Figure 3B) shows the elemental content change during processing. 44,45 Increased C 1s and O 1s signals indicated a satisfactory incorporation of GO in MXenes after mixing with GO. A decreased signal of O 1s after gas foaming could be attributed to the reduction of GO to rGO.…”

Section: Structural Evolution Of Mxene/rgo Aerogel and Mechanism Of T...mentioning

confidence: 98%

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Maximizing Electron Channels Enabled by MXene Aerogel for High-Performance Self-Healable Flexible Electronic Skin

et al. 2023

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Among the increasingly popular miniature and flexible smart electronics, two-dimensional materials show great potential in the development of flexible electronics owing to their layered structures and outstanding electrical properties. MXenes have attracted much attention in flexible electronics owing to their excellent hydrophilicity and metallic conductivity. However, their limited interlayer spacing and tendency for self-stacking lead to limited changes in electron channels under external pressure, making it difficult to exploit their excellent surface metal conductivity. We propose a strategy for rapid gas foaming to construct interlayer tunable MXene aerogels. MXene aerogels with rich interlayer network structures generate maximized electron channels under pressure, facilitating the effective utilization of the surface metal properties of MXene; this forms a self-healable flexible pressure sensor with excellent sensing properties such as high sensitivity (1,799.5 kPa–1), fast response time (11 ms), and good cycling stability (>25,000 cycles). This pressure sensor has applications in human body detection, human–computer interaction, self-healing, remote monitoring, and pressure distribution identification. The maximized electron channel design provides a simple, efficient, and scalable method to effectively exploit the excellent surface metal conduction of 2D materials.

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Section: Resultsmentioning

confidence: 99%

Section: Structural Evolution Of Mxene/rgo Aerogel and Mechanism Of T...mentioning

confidence: 98%

Maximizing Electron Channels Enabled by MXene Aerogel for High-Performance Self-Healable Flexible Electronic Skin

et al. 2023

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“…87 As another representative example, a ZIHMSC-pressure sensor system was constructed from a ZIHMSC and a nanoporous Ti 3 C 2 T x MXene-based pressure sensor (Fig. 9f), 117 in which a layered porous-MXene membrane and an electrospun PEI served as the pressure sensing part and isolation part, respectively. Encouragingly, with the power provided by the ZIHMSCs, the pressure sensing system works well under different human activities and can be used to monitor the health status.…”

Section: Applications Of Zihmscsmentioning

confidence: 99%

Recent progress of high-performance in-plane zinc ion hybrid micro-supercapacitors: design, achievements, and challenges

Liu,

Li,

Tay

2024

Nanoscale

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“…The key to TENG’s comprehensive performance in self-powered pressure sensors is its excellent electromechanical conversion property. − When under the mechanical stimulus, TENG could effectively convert the stimulus force into an electrical signal through the coupling of triboelectrification and electrostatic induction effect . In this way, a superior sensing capability can be excavated by establishing a close correspondence between the stimulus force and the electrical signal.…”

Section: Introductionmentioning

confidence: 99%

Hierarchical Wrinkles with Piezopotential Enhanced Surface Tribopolarity for High-Performance Self-Powered Pressure Sensor

Gu,

Wang,

Yang

et al. 2024

ACS Appl. Mater. Interfaces

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Achieving both high sensitivity and wide detecting range is significant for the applications of triboelectric nanogenerator-based self-powered pressure sensors (TPSs). However, most of the previous designs with high sensitivity usually struggle in a narrow pressure detection range (<30 kPa) while expanding the detection range normally sacrifices the sensitivity. To overcome this well-known obstacle, herein, piezopotential enhanced triboelectric effect realized by a rationally designed PDMS/ZnO NWs hierarchical wrinkle structure was exploited to develop a TPS (PETPS) with both high sensitivity and wide detecting range. In this PETPS design, the piezopotential derived from the deformation of ZnO NWs enhances its tribo-charge transferring ability; meanwhile, the hierarchical structure helps to establish a dynamically self-adjustable contact area. Benefiting from these advantages, the PETPS simultaneously achieves high sensitivity (0.26 nC cm −2 kPa −1 from 1 to 25 kPa, and 0.02 nC cm −2 kPa −1 from 25 to 476 kPa), fast response (46 ms), wide sensing range (1 to 476 kPa), and good stability (over 4000 cycles). In addition, the output charge density that is independent of the speed rate of driven force was adopted as the sensing signal of PETPS to replace the commonly used peak voltage/current values, enabling it more adaptive to accurately detect pressure variation in real applications.

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Maximizing the ion accessibility and high mechanical strength in nanoscale ion channel MXene electrodes for high-capacity zinc-ion energy storage

Cited by 33 publications

References 62 publications

Maximizing Electron Channels Enabled by MXene Aerogel for High-Performance Self-Healable Flexible Electronic Skin

Maximizing Electron Channels Enabled by MXene Aerogel for High-Performance Self-Healable Flexible Electronic Skin

Recent progress of high-performance in-plane zinc ion hybrid micro-supercapacitors: design, achievements, and challenges

Hierarchical Wrinkles with Piezopotential Enhanced Surface Tribopolarity for High-Performance Self-Powered Pressure Sensor

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