Highly stable, stretchable, and versatile electrodes by coupling of NiCoS nanosheets with metallic networks for flexible electronics

Zhong, Yu Lin; Liang, Jionghong; Zhang, Bolun; Wang, Fengming; Huang, Wei‐Qing; Cai, Guofa; Zhang, Chengkai; Yue, Xin; Chen, Bohua; He, Xin

doi:10.1039/d2nr01890j

Cited by 9 publications

(2 citation statements)

References 64 publications

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“…The initial capacitance values ( C 0 ) of the TPU fiber-based sensor, the TPU@IL 1.7 ionogel fiber-based sensor, and the TPU@IL 2.6 ionogel fiber-based sensor are 0.5 pF, 6 pF, and 12 pF, respectively. The UAC values of these sensors are 464, 456,000, and 656,000 nF·cm –2 , respectively (Figure S4), which are obtained based on galvanostatic charge/discharge curves according to the literature. − Clearly, compared with the TPU fiber-based sensor without IL, TPU@IL ionogel fiber-based sensors show significantly improved C 0 and UAC, which helps increase the noise immunity, detection resolution, and device sensitivity. From Figure a, it is found that the TPU fiber-based sensor exhibits a low noise immunity and poor cyclic stability due to the relatively low C 0 and UAC.…”

Section: Resultsmentioning

confidence: 84%

Multifunctional Iontronic Sensor Based on Liquid Metal-Filled Ho llow Ionogel Fibers in Detecting Pressure, Temperature, and Proximity

Chen

Zhu

Wang

et al. 2023

ACS Appl. Mater. Interfaces

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Fiber-based pressure/temperature sensors are highly desired in wearable electronics because of their natural advantages of good breathability and easy integrability. However, it is still a great challenge to fabricate reliable and highly sensitive fiber-based pressure/temperature sensors via a scalable and facile strategy. Herein, a novel fiber-based iontronic sensor with excellent pressure-and temperature-sensing capabilities is designed by assembling two crossed hollow and porous ionogel fibers filled with liquid metal. Serving as a pressure sensor, a high detection resolution (1.16 Pa), a high sensitivity of 13.30 kPa −1 (0−2 kPa), and a wide detection range (∼207 kPa) are realized owing to its novel hierarchical structure and the selection of deformable liquid electrodes. As a temperature sensor, it exhibits a high temperature sensitivity of 25.99% °C−1 (35−40 °C), high resolution of 0.02 °C, and good repeatability and reliability. On the basis of these excellent sensing capabilities, the as-prepared sensor can detect not only pressure signals varied from weak pulse to large joint movements but also the proximity of different objects. Furthermore, a large-area fiber array can be easily woven for acquiring the pressure mapping to intuitively distinguish the location, magnitude, and shape of the loaded object. This work provides a universal strategy to design fiber-shaped iontronic sensors for wearable electronics.

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Section: Resultsmentioning

confidence: 84%

Multifunctional Iontronic Sensor Based on Liquid Metal-Filled Ho llow Ionogel Fibers in Detecting Pressure, Temperature, and Proximity

Chen

Zhu

Wang

et al. 2023

ACS Appl. Mater. Interfaces

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“…3b). 44,45 In the core-level spectrum of Ni 2p, the peaks located at 855.0 eV and 872.5 eV correspond to Ni 2+ and the peaks positioned at 856.4 eV and 874.1 eV can be assigned to Ni 3+ . Besides, Ni 2p exhibits two shakeup satellite peaks at 861.2 eV and 879.1 eV.…”

Section: Resultsmentioning

confidence: 99%

In situ construction of heterostructured Cu_xO@NiCoS nanoarrays for alkaline overall water splitting

Song,

Yang,

Ayappan

et al. 2024

Sustainable Energy Fuels

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Precisely Gradient S‐Doping to Optimize Oxysulfide Nanowires Active Centers for High‐Rate Electrochemical Energy Storage

Yang,

Yin,

Fang

et al. 2024

Adv Funct Materials

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Owing to high theoretical capacitance, nickel cobalt alkaline carbonate (NiCoAC) has attracted wide attention in electrochemical energy storage. However, the high surface ionic resistance and low bulk intrinsic activity result in NiCo‐AC being unable to exhibit fast electronic response frequency and charge storage. Herein, via precisely controlling gradient S‐doping, NiCo‐AC nanowire is in situ converted into core‐shell bimetallic oxysulfide (NiCo─O─S), with interior particularly presenting a granular due to the contraction of bulk structure, achieving the synergistic modification of surface and bulk. Specifically, owing to the lower band gap energy of metal sulfides, the derived shell optimizes OH− adsorption center from Ni to Ni─Co─Ni sites with higher binding energy, and the granular core facilitates further ion diffusion with enhanced charge accumulation. Hence, NiCo─O─S reflect higher redox activity than that of nickel‐cobalt sulfide (NiCo─S) and NiCo‐AC, with an ultrahigh capacitance of 3,298 F g−1 at 1 A g−1. The as‐fabricated supercapacitors display an outstanding energy density of 131 Wh kg−1 at 800 W kg−1 and present high capacitance retention of 98.5% and coulomb efficiency of 93.2％ under 12 000 charge‐discharge cycles. This study reflects a new insight into activating the intrinsic activity of nanomaterials to further develop high‐rate and stable electrodes.

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Highly stable, stretchable, and versatile electrodes by coupling of NiCoS nanosheets with metallic networks for flexible electronics

Abstract: The rapid development of portable electronics has contributed to an urgent demand for versatile and flexible electrodes of wearable energy storage devices and pressure sensors. We fabricate a stretchable electrode...

Cited by 9 publications

References 64 publications

Multifunctional Iontronic Sensor Based on Liquid Metal-Filled Ho llow Ionogel Fibers in Detecting Pressure, Temperature, and Proximity

Multifunctional Iontronic Sensor Based on Liquid Metal-Filled Ho llow Ionogel Fibers in Detecting Pressure, Temperature, and Proximity

In situ construction of heterostructured Cu_xO@NiCoS nanoarrays for alkaline overall water splitting

Precisely Gradient S‐Doping to Optimize Oxysulfide Nanowires Active Centers for High‐Rate Electrochemical Energy Storage

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Highly stable, stretchable, and versatile electrodes by coupling of NiCoS nanosheets with metallic networks for flexible electronics

Abstract: The rapid development of portable electronics has contributed to an urgent demand for versatile and flexible electrodes of wearable energy storage devices and pressure sensors. We fabricate a stretchable electrode...

Cited by 9 publications

References 64 publications

Multifunctional Iontronic Sensor Based on Liquid Metal-Filled Ho llow Ionogel Fibers in Detecting Pressure, Temperature, and Proximity

Multifunctional Iontronic Sensor Based on Liquid Metal-Filled Ho llow Ionogel Fibers in Detecting Pressure, Temperature, and Proximity

In situ construction of heterostructured CuxO@NiCoS nanoarrays for alkaline overall water splitting

Precisely Gradient S‐Doping to Optimize Oxysulfide Nanowires Active Centers for High‐Rate Electrochemical Energy Storage

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In situ construction of heterostructured Cu_xO@NiCoS nanoarrays for alkaline overall water splitting