Preparation of a self-healing polyaniline-based gel and its application as a healable all-in-one capacitor

Zhao, Jing; Ji, Guochen; Li, Yan; Hu, Ruofei; Jiao, Zheng

doi:10.1016/j.cej.2021.129790

Cited by 36 publications

(19 citation statements)

References 43 publications

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“…In the second case, conducting polymers, such as poly(ethylenedioxythiophene) (PEDOT), polyaniline (PANI), polypyrrole (PPy) are mixed with insulating materials, which provide the mechanical characteristics needed for self-healing. [34][35][36][37][38] As these composites are often solutionprocessable, the relative amount of the components can be easily tuned to achieve a homogeneous material with the desired electrical conductivity and healing performance. Tunable electrical conductivity and mechanical properties, high stability in air and aqueous media, low cost, lightweight, flexibility, and, in some cases, biocompatibility make these materials attractive for numerous applications, such as energy harvesting devices, wearable and stretchable electronics, energy storage, electronic skin, and implantable devices (Figure 1).…”

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confidence: 99%

Recent Progress on Self‐Healable Conducting Polymers

Zhou

Sarkar

et al. 2022

Advanced Materials

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Materials able to regenerate after damage have been the object of investigation since the ancient times. For instance, self‐healing concretes, able to resist earthquakes, aging, weather, and seawater have been known since the times of ancient Rome and are still the object of research. During the last decade, there has been an increasing interest in self‐healing electronic materials, for applications in electronic skin (E‐skin) for health monitoring, wearable and stretchable sensors, actuators, transistors, energy harvesting, and storage devices. Self‐healing materials based on conducting polymers are particularly attractive due to their tunable high conductivity, good stability, intrinsic flexibility, excellent processability and biocompatibility. Here recent developments are reviewed in the field of self‐healing electronic materials based on conducting polymers, such as poly 3,4‐ethylenedioxythiophene (PEDOT), polypyrrole (PPy), and polyaniline (PANI). The different types of healing, the strategies adopted to optimize electrical and mechanical properties, and the various possible healing mechanisms are introduced. Finally, the main challenges and perspectives in the field are discussed.

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confidence: 99%

Recent Progress on Self‐Healable Conducting Polymers

Zhou

Sarkar

et al. 2022

Advanced Materials

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“…The band at 1450 cm –1 was ascribed to the stretching vibration of C–N, which performed sharper after protonation . The enhancement of the C–N peak was supposed to be induced by protonation, which disturbed the density of the electron cloud around C–N, causing the change of force constant and bond length of the C–N accordingly . An apparent reduction of intensity at 3404 cm –1 could be observed, which indicated the decrease of free hydroxyl groups.…”

Section: Resultsmentioning

confidence: 97%

Liquid Foam Stabilized by a CO₂-Responsive Surfactant and Similarly Charged Cellulose Nanofibers for Reversibly Plugging in Porous Media

Wei

Guo

Xie

et al. 2022

ACS Appl. Mater. Interfaces

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CO2 foams are of great importance in oil recovery but challenging in some aspects like long-term stabilization and time-separated conflict. In this work, a stability-enhanced switchable foam was fabricated using bis-(2-hydroxyethoxy) olefine amine (BOA) and trace amounts (0.05 wt %) of cationic-modified cellulose nanofibers (CCNFs). The CCNF was developed using sequentially functionalized CNF with diamine groups, which were essential to promote the aqueous dispersibility and a key for strengthening the stabilization of foam. The combination of similarly charged CCNFs and BOA in the presence of CO2 contributed to both surface activity and viscoelasticity. It was demonstrated that CCNFs were entangled and stacked to form the compact films and possessed the ability to costabilize the lamellae, as observed by microscopic studies. In addition, the intermolecular H-bonds were promoted in the binary system after being protonated by CO2 and thus balancing the electrostatic forces, as explored by spectroscopy characterizations. The soft fibrous structure of the CCNF was also capable of wrapping gas bubbles in the form of a functional membrane with both low gas permeability and high surface potential, which slowed down the coarsening and coalescence. Of particular interest is that the reversible protonation state of CCNF-BOA complexes upon the alternate treatment with CO2/N2 led to reversible fast foaming/defoaming, which would be beneficial to construct the steerable plugging in the sand pack. This work is expected to provide a new direction and application of the CO2 responsive foam stabilized by similarly charged nanocellulose fibers in oilfield development.

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“…[6,27,32,33] For instance, linear or planar SCs using different electrodes (e.g., rGO/MoO 3 @C, [34] PANI/carbon nanotube (CNT), [30] PANI@F-MWCNT@silk, [29] and Sb/MXene [23] ) were encapsulated with a similar self-healing polyurethane (PU) shell, which could survive from multiple damaged/self-healing cycles without severe performance degradation. [35][36][37][38][39] Benefiting from such a self-healing design, the service life of SCs should be extended as expected. [40] Here, we have successfully fabricated a free-standing Sb/ CNT/PANI electrode with enhanced pseudocapacitive performance by taking advantage of the impressive characteristics of Sb nanosheets (e.g., excellent mechanical strength and flexibility).…”

Section: Introductionmentioning

confidence: 99%

High Capacitive Antimonene/CNT/PANI Free‐Standing Electrodes for Flexible Supercapacitor Engaged with Self‐Healing Function

Jiang

Luo

et al. 2022

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As a conductive polymer, polyaniline (PANI) has been broadly utilized as an electrode material for highperformance SCs thanks to its large specific capacitance, [3,4] outstanding flexibility, [5][6][7] and environmental stability, let alone its easy synthesis. [8][9][10] Although PANI exhibits a satisfying performance in SCs, its relatively low electric and ionic conductivity resulting from agglomeration will lead to a sluggish redox reaction and thus a deteriorated capacitance under high current density. [11][12][13] This problem should weaken the practicality of PANI electrodes to a certain degree. According to the successful experience of other electrodes that have solved the similar problems, [14][15][16] it is preferable to combine the pseudocapacitive PANI with some conductive and porous materials, which can assist PANI to achieve its full potential via the synergistic effects. [10,[17][18][19] For instance, 2D materials (e.g., graphene) with large and adjustable surfaces could load a large number of PANI nanoparticles with good homogeneity via different means, guaranteeing a fast redox reaction and then a decent rate capability. [17,18,[20][21][22] As an important member of 2D materials, antimonene (Sb) nanosheets present not only a large surface area and high conductivity, [23,24] but also excellent mechanical strength and flexibility. [25,26] A preliminary researchIn virtue of the high electrochemical activity and inherent flexibility, polyaniline (PANI) is an ideal electrode material for flexible supercapacitors (SCs). However, in practical applications, the inevitable agglomeration of PANI leads to low capacitance, poor rate performance, and cycling stability. Here, antimonene (Sb) nanosheets with ultrathin thickness, excellent mechanical strength, and flexibility are introduced into the carbon nanotube (CNT) framework for PANI electrodeposition via simple vacuum filtration, which enables the continuous and uniform growth of PANI. The resultant free-standing Sb/CNT/PANI electrode can thus exhibit a high specific capacitance of 578.57 F g −1 together with a high rate capability. Besides, thanks to the introduction of Sb nanosheets, the agglomeration of PANI during the electrodeposition is improved, which correspondingly alleviates the structural deterioration of PANI during repeated charge/discharge. Thus, the flexible SC assembled by Sb/CNT/PANI electrodes demonstrates both an impressive specific capacitance of 416 F g −1 and outstanding cycling stability over 12 000 cycles. Moreover, this SC device can have a practical self-healing function by employing self-healable polyurethane. The facile strategy reported herein sheds light on the design of high-performance flexible SCs, catering to the needs of portable and wearable electronics.

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Preparation of a self-healing polyaniline-based gel and its application as a healable all-in-one capacitor

Cited by 36 publications

References 43 publications

Recent Progress on Self‐Healable Conducting Polymers

Recent Progress on Self‐Healable Conducting Polymers

Liquid Foam Stabilized by a CO₂-Responsive Surfactant and Similarly Charged Cellulose Nanofibers for Reversibly Plugging in Porous Media

High Capacitive Antimonene/CNT/PANI Free‐Standing Electrodes for Flexible Supercapacitor Engaged with Self‐Healing Function

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Preparation of a self-healing polyaniline-based gel and its application as a healable all-in-one capacitor

Cited by 36 publications

References 43 publications

Recent Progress on Self‐Healable Conducting Polymers

Recent Progress on Self‐Healable Conducting Polymers

Liquid Foam Stabilized by a CO2-Responsive Surfactant and Similarly Charged Cellulose Nanofibers for Reversibly Plugging in Porous Media

High Capacitive Antimonene/CNT/PANI Free‐Standing Electrodes for Flexible Supercapacitor Engaged with Self‐Healing Function

Contact Info

Product

Resources

About

Liquid Foam Stabilized by a CO₂-Responsive Surfactant and Similarly Charged Cellulose Nanofibers for Reversibly Plugging in Porous Media