Sucrose in situ physically cross-linked of polyaniline and polyvinyl alcohol to prepare three-dimensional nanocomposite hydrogel with flexibility and high capacitance

Cao, Lin; Huang, Suyuan; Lai, Fenglin; Fang, Zeming; Cui, Jie; Du, Xusheng; Li, Wei; Lin, Zhidan; Zhang, Peng; Huang, Zhenrui

doi:10.1007/s11581-021-04010-3

Cited by 8 publications

(5 citation statements)

References 45 publications

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“…Flexible electrodes with a large energy density ( E ) and high power density ( P ) are key factors for achieving portable and wearable supercapacitors in practical application. The E (μW h cm –2 ) and P (mW cm –2 ) can be, respectively, calculated by the equations: ,,, E = ( C 1 × U 2 )/(2 × 3.6) and P = E / t , where C 1 is the areal capacitance (mF cm –2 ), U is the potential window ( V ), and t is the discharge time ( h ). Figure h depicts the Ragone plot of our assembled device and other recently reported supercapacitors.…”

Section: Resultsmentioning

confidence: 99%

Scalable Construction of Flexible Composite Textile Electrodes through In Situ Growth of Polyaniline Nanofibers on Carbon Cloths under Electric Field toward High Areal Capacitance Supercapacitors

Shen

Cheng

Dong

et al. 2022

ACS Appl. Energy Mater.

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The most promising development direction of polymorphous supercapacitors is to find a scalable and inexpensive strategy to fabricate textile electrodes besides endowing a flexible device with a high areal capacitance. Herein, we explore an interesting scalable fabrication of cost-effective composite textile electrodes by promoting the in situ nucleation and growth of a polyaniline nanofiber array on carbon cloth under an electric field and then ensuring enough monomers and moist condition for the successive growth of the array. The assembled all-solid-state supercapacitor possesses a maximum energy density of 86.3 μWh cm–2 at 0.42 mW cm–2 and excellent structural stability.

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Section: Resultsmentioning

confidence: 99%

Scalable Construction of Flexible Composite Textile Electrodes through In Situ Growth of Polyaniline Nanofibers on Carbon Cloths under Electric Field toward High Areal Capacitance Supercapacitors

Shen

Cheng

Dong

et al. 2022

ACS Appl. Energy Mater.

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“…The authors have cited additional references within the Supporting Information (Ref. [9][10][11][63][64][65][66][67][68][69]).…”

Section: Experimental Section Materialsmentioning

confidence: 99%

“…Nevertheless, physically crosslinked hydrogels have limited mechanical properties. [9][10][11] The preparation of either a chemically and physically cross-linked hybrid double network or a fully physically cross-linked double network, enabling hydrogels to retain their mechanical strength while maintaining good self-healing properties, remains a significant challenge. [12,13] Poly N-hydroxyethyl acrylamide (PHEAA) is a biocompatible material.…”

Section: Introductionmentioning

confidence: 99%

“…An approach to circumvent this drawback is the introduction of reversible physical bonds into networks. Nevertheless, physically cross‐linked hydrogels have limited mechanical properties [9–11] . The preparation of either a chemically and physically cross‐linked hybrid double network or a fully physically cross‐linked double network, enabling hydrogels to retain their mechanical strength while maintaining good self‐healing properties, remains a significant challenge [12,13] …”

Section: Introductionmentioning

confidence: 99%

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Highly Flexible and Self‐Healing Supercapacitor Enabled by Physically Crosslinking Polymer Hydrogel Electrolyte

Hua,

Xin,

Lin

et al. 2023

Chemistry A European J

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Preparation of flexible supercapacitors with excellent mechanical properties and self‐healing properties is of great significance but still remains a challenge. A self‐healable conductive hydrogel based on poly N‐hydroxyethyl acrylamide (PHEAA) is fabricated as electrolyte for supercapacitors. The design of the physically cross‐linked dual network, and rich hydrogen bonds endow the hydrogel with robust mechanical properties and strong self‐healing ability. The hydrogel exhibited an excellent stretchability (723%) and a high ionic conductivity (21.8 mS/cm). Specially, by in‐situ growth of electrode film, a non‐laminated supercapacitor is obtained with flexibility and self‐healing ability. Due to the non‐laminated structure, the supercapacitor can work stably under bending and punching. The supercapacitor possessed an areal capacitance of 253.1 mF/cm2 and the capacitance retention was 80% after five cutting‐healing cycles. The pseudo‐capacitance contribution of the supercapacitor after self‐healing was discussed. It is noteworthy that the supercapacitor maintains the ability to power a clock after self‐healing.

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“…Hydrogels are similar in structure and chemistry to soft tissues, including cartilage and tendons [1,2]. Likewise, conductive hydrogels are created by mixing them with conductive materials, such as polyaniline [3], polypyrrole [4], poly(3,4-ethylenedioxythiophene)/polystyrene sulfonic acid (PEDOT/PSS) [5], Mexen [6], carbon nanotubes [7], and graphene oxide [8], giving cellulose good conductive properties. Hydrogels have, consequently, attracted much interest in smart sensing [9,10], wearable devices [11][12][13], and tissue engineering [14,15].…”

Section: Introductionmentioning

confidence: 99%

Preparation of Nanocellulose Whisker/Polyacrylamide/Xanthan Gum Double Network Conductive Hydrogels

Wang

2023

Coatings

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Hydrogels’ poor mechanical and recovery characteristics inhibited their application as a plastic deformable three-dimensional cross-linked network polymer with electrical properties for intelligent sensing and human motion detection. Cellulose has also been added to the hydrogel to enhance its mechanical properties. The hydrogel has been enhanced this way, and the double-network hydrogel has superior recovery and mechanical capabilities. This study used the traditional free radical polymerization method to prepare double-mesh hydrogels, with polyacrylamide as the backbone network, xanthan gum double-helix structure, and Al3+ complex structure as the second cross-linked network, and endowing the hydrogels with good mechanical recovery and mechanical properties. Adding cellulose nanowafers (CNWs) improved the mechanical properties of the hydrogels. The hydrogel could detect body movements and various postures in the same environment. Moreover, the hydrogel has excellent recovery, mechanical properties, and tensile strain; the maximum fracture stress is 0.14 MPa, and the maximum strain is 707.1%. In addition, Fourier infrared spectroscopy (FTIR) of xanthan gum and Xanthan gum—Al3+ were analyzed, and thermogravimetric analysis (TGA) and LCR bridge were used to analyze the properties of hydrogels. Notably, hydrogel-based wearable sensors have been successfully constructed to detect human movement. Its mechanical properties, sensitivity, and wide range of properties make hydrogel a great potential for various applications in wearable sensors.

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Sucrose in situ physically cross-linked of polyaniline and polyvinyl alcohol to prepare three-dimensional nanocomposite hydrogel with flexibility and high capacitance

Cited by 8 publications

References 45 publications

Scalable Construction of Flexible Composite Textile Electrodes through In Situ Growth of Polyaniline Nanofibers on Carbon Cloths under Electric Field toward High Areal Capacitance Supercapacitors

Scalable Construction of Flexible Composite Textile Electrodes through In Situ Growth of Polyaniline Nanofibers on Carbon Cloths under Electric Field toward High Areal Capacitance Supercapacitors

Highly Flexible and Self‐Healing Supercapacitor Enabled by Physically Crosslinking Polymer Hydrogel Electrolyte

Preparation of Nanocellulose Whisker/Polyacrylamide/Xanthan Gum Double Network Conductive Hydrogels

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