Wide temperature-tolerant polyaniline/cellulose/polyacrylamide hydrogels for high-performance supercapacitors and motion sensors

Li, Yueqin; Gong, Qiang; Liu, Xiaohui; Xia, Zongbiao; Yang, Yong; Chen, Chen; Chen, Qian

doi:10.1016/j.carbpol.2021.118207

Cited by 61 publications

(41 citation statements)

References 63 publications

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“…6). Coating PANI onto MC led to higher surface areas due to the 3D structure of the MC fibers, promoted better ion diffusion and accelerated electron transport due to shorter charge transport paths within the electrode material, and improved the accessibility of electrochemical-active sites producing higher specific capacitance values compared to PANI alone [24,58,64].…”

Section: Resultsmentioning

confidence: 99%

“…To overcome PANI's poor mechanical strength and lessen degradation, numerous studies have combined PANI and a support material with good mechanical properties [14]. PANI has been combined with carbon nanotubes [15][16][17][18][19], metal-organic frameworks [20] nanocellulose/cellulose [14,[21][22][23][24][25][26][27], and textiles [28][29][30][31].…”

Section: Introductionmentioning

confidence: 99%

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Polyaniline/agricultural waste microcellulose composites as electrode materials for supercapacitors

Ramirez-Peñafiel¹,

Guzman²,

Perez³

et al. 2022

actamanil

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Supercapacitors are energy storage devices that employ carbon, metal oxides, and conducting polymers as electrode materials. Polyaniline (PANI) was polymerized onto microcellulose (MC) to produce an electroactive material suitable for supercapacitor electrode applications. Microcellulose was prepared from cellulose extracted from Cocos nucifera L. (coconut, CLS) leaf sheaths and Oryza sativa straw (rice, RS). Delignification and bleaching procedures yielded 45% and 28% cellulose from CLS and RS, respectively, followed by acid hydrolysis to produce MC. Acid hydrolysis of the extracted cellulose produced MC. PANI was chemically polymerized onto MC using a 50:50, 70:30, and 90:10 aniline:MC ratios. PANI/MC composites were then characterized by SEM, TGA, FTIR, four-point probe conductivity testing and cyclic voltammetry. SEM micrographs indicated the composite was composed of thin ribbonlike strands with a rough surface coating. TGA revealed that extracted cellulose (CLS -312.55 °C; RS -331.50 °C) had lower purity compared to standard cellulose (335.28 °C). FTIR spectra of the composites showed characteristic peaks of both pure PANI and MC. PANI/MC composites with 90:10 ratio gave the highest conductivity values, ranging from 36.4 µScm -1 to 39.0 µScm -1 ; and specific capacitance values of 51.2 F g -1 to 109 F g -1 at 50 mV s -1 . The results showed effective utilization of waste residues capable of increasing the potential of PANI as an electrode material for supercapacitors.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Polyaniline/agricultural waste microcellulose composites as electrode materials for supercapacitors

Ramirez-Peñafiel¹,

Guzman²,

Perez³

et al. 2022

actamanil

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show abstract

“…Challenges such as freestanding and avoiding the sacrificial layers to fabricate the continuous thin films makes the sensory device fabrication demanding in terms of scalability [133]. Several works based on wearable devices have also exerted the contradiction of achieving the strength and the toughness of the devices because of mechanical modulus' mismatch experience between the skin and wearable devices [145]. Efforts pertaining to solve the mechanical, electrical stability synchronously can make significant differences in creating the highly durable devices with lowered hysteresis.…”

Section: Polyaniline Sensorsmentioning

confidence: 99%

Recent Progress in Conducting Polymer Composite/Nanofiber-Based Strain and Pressure Sensors

et al. 2021

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The Conducting of polymers belongs to the class of polymers exhibiting excellence in electrical performances because of their intrinsic delocalized π- electrons and their tunability ranges from semi-conductive to metallic conductive regime. Conducting polymers and their composites serve greater functionality in the application of strain and pressure sensors, especially in yielding a better figure of merits, such as improved sensitivity, sensing range, durability, and mechanical robustness. The electrospinning process allows the formation of micro to nano-dimensional fibers with solution-processing attributes and offers an exciting aspect ratio by forming ultra-long fibrous structures. This review comprehensively covers the fundamentals of conducting polymers, sensor fabrication, working modes, and recent trends in achieving the sensitivity, wide-sensing range, reduced hysteresis, and durability of thin film, porous, and nanofibrous sensors. Furthermore, nanofiber and textile-based sensory device importance and its growth towards futuristic wearable electronics in a technological era was systematically reviewed to overcome the existing challenges.

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“…Unfortunately, due to the rigidness of PANI chains, 51 usually limited. 52,53 Herein, we proposed a novel, economic, and all-solution-based strategy to fabricate a biocompatible, flexible, yet robust conductive composite hydrogel (CCH).…”

mentioning

confidence: 99%

“…As an electrically conductive polymer with high electrical conductivity and low cost, PANI has drawn enormous attention for the preparation of conductive hydrogels. Unfortunately, due to the rigidness of PANI chains, the mechanical properties of the corresponding hydrogels are usually limited. , Herein, we proposed a novel, economic, and all-solution-based strategy to fabricate a biocompatible, flexible, yet robust conductive composite hydrogel (CCH). The CCH consists of penetrating PANI moieties and polyvinyl alcohol (PVA) chains cross-linked by glutaraldehyde (GA).…”

mentioning

confidence: 99%

Solution-Processable Conductive Composite Hydrogels with Multiple Synergetic Networks toward Wearable Pressure/Strain Sensors

Wei

Kong

et al. 2021

ACS Sens.

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A biocompatible, flexible, yet robust conductive composite hydrogel (CCH) for wearable pressure/strain sensors has been achieved by an all-solution-based approach. The CCH is rationally constructed by in situ polymerization of aniline (An) monomers in the polyvinyl alcohol (PVA) matrix, followed by the cross-linking of PVA with glutaraldehyde (GA) as the cross-linker. The unique multiple synergetic networks in the CCH including strong chemical covalent bonds and abundance of weak physical cross-links, i.e., hydrogen bondings and electrostatic interactions, impart excellent mechanical strength (a fracture tensile strength of 1200 kPa), superior compressibility (ε = 80%@400 kPa), outstanding stretchability (a fracture strain of 670%), high sensitivity (0.62 kPa–1 at a pressure range of 0–1.0 kPa for pressure sensing and a gauge factor of 3.4 at a strain range of 0–300% for strain sensing, respectively), and prominent fatigue resistance (1500 cycling). As the flexible wearable sensor, the CCH is able to monitor different types of human motion and diagnostically distinguish speaking. As a proof of concept, a sensing device has been designed for the real-time detection of 2D distribution of weight or pressure, suggesting its promising potentials for electronic skin, human–machine interaction, and soft robot applications.

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Wide temperature-tolerant polyaniline/cellulose/polyacrylamide hydrogels for high-performance supercapacitors and motion sensors

Cited by 61 publications

References 63 publications

Polyaniline/agricultural waste microcellulose composites as electrode materials for supercapacitors

Polyaniline/agricultural waste microcellulose composites as electrode materials for supercapacitors

Recent Progress in Conducting Polymer Composite/Nanofiber-Based Strain and Pressure Sensors

Solution-Processable Conductive Composite Hydrogels with Multiple Synergetic Networks toward Wearable Pressure/Strain Sensors

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