Multifunctional structural composite supercapacitors based on MnO2-nanowhiskers decorated carbon fibers

Subhani, Karamat; Hameed, Nishar; Al-Qatatsheh, Ahmed; Ince, Joshua; Mahon, Peter J.; Lau, Alan Kin Tak; Salim, Nisa V.

doi:10.1016/j.est.2022.105936

Cited by 25 publications

(9 citation statements)

References 55 publications

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“…It is noteworthy to mention that the AWCC-ASC developed in this work has achieved an exceptional energy density, surpassing the majority of supercapacitors reported in previous studies. An illustrative comparison (inset of Figure e) is presented to note that the energy density of AWCC-ASC exceeds those of MnO 2 @carbon fiber (2.45 Wh kg –1 ), NiCo 2 O 4 @NG/MnOOH (7.2Wh kg –1 ), MnO 2 @CNT/MnO 3 @CNT (27.8 Wh kg –1 ), MoS 2 @carbon fiber (11.13 Wh kg –1 ), a carbon nanosheet with Cu 2 O (19.36 Wh kg –1 ), and MnO 2 @CC (18.46 Wh kg –1 ) . The cycling stability of AWCC-ASC was also tested at a current density of 0.5A g –1 (Figure f).…”

Section: Resultsmentioning

confidence: 99%

Waste-Cotton-Cloth-Derived Sustainable and Flexible High-Performance Supercapacitor

Vashishth,

Raulo,

Srivastava

et al. 2024

ACS Sustainable Resour. Manage.

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Turning waste cotton cloth into an energy-storage device kills two birds with one stone. It can reduce waste generation from textile industries and become a sustainable, lowcost, and readily available source of material to fulfill the global energy demand. Herein, we develop a high-performance flexible supercapacitor from waste cotton cloths. This involves a straightforward method for the fabrication of SnO 2 @carbon cloth (SnO 2 @CC) from waste cotton cloths. The fabricated SnO 2 @CC, having a high specific surface area (∼786 m 2 g −1 ) with micropores (∼1.62 nm), was further used as a freestanding and binder-free electrode in the supercapacitor. The resulting supercapacitor exhibited an excellent specific capacitance of 1024.32 F g −1 at a current density of 0.5 A g −1 with outstanding long cycling stability (nearly 100% for 10000 cycles) in an aqueous 1 M Na 2 SO 4 electrolyte in a three-electrode system. Further, the SnO 2 @CC electrode is integrated with a waste-cotton-cloth-based counter electrode and separator to fabricate asymmetric full-cell supercapacitor devices. The flexible asymmetric full-cell supercapacitor showed a promising electrochemical performance with an energy density of 18.9 Wh kg −1 and excellent mechanical stability.

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Section: Resultsmentioning

confidence: 99%

Waste-Cotton-Cloth-Derived Sustainable and Flexible High-Performance Supercapacitor

Vashishth,

Raulo,

Srivastava

et al. 2024

ACS Sustainable Resour. Manage.

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“…Coupling conductive textile fibers with other electrode materials may be a potential strategy for achieving high performance. [89,90] On the one hand, the high electrical conductivity of textile fibers can promote the electron transport to benefit for the electrochemical reactions. [91,92] On the other hand, the textile fibers can also provide rich a high specific surface area to load electroactive materials.…”

Section: Supercapacitorsmentioning

confidence: 99%

“…In terms of the electrode materials, the morphology, electronic structure, and electrical conductivity are three important factors. Coupling conductive textile fibers with other electrode materials may be a potential strategy for achieving high performance [89,90] . On the one hand, the high electrical conductivity of textile fibers can promote the electron transport to benefit for the electrochemical reactions [91,92] .…”

Section: Applications Of Textiles In Flexible Wearable Devicesmentioning

confidence: 99%

Recent Advances in Flexible Wearable Technology: From Textile Fibers to Devices

Zhao,

Guo,

Sun

et al. 2024

The Chemical Record

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Smart textile fabrics have been widely investigated and used in flexible wearable electronics because of their unique structure, flexibility and breathability, which are highly desirable with integrated multifunctionality. Recent years have witnessed the rapid development of textile fiber‐based flexible wearable devices. However, the pristine textile fibers still can't meet the high standards for practical flexible wearable devices, which calls for the development of some effective modification strategies. In this review, we summarize the recent advances in the flexible wearable devices based on the textile fibers, putting special emphasis on the design and modifications of textile fibers. In addition, the applications of textile fibers in various fields and the critical role of textile fibers are also systematically discussed, which include the supercapacitors, sensors, triboelectric nanogenerators, thermoelectrics, and other self‐powered electronic devices. Finally, the main challenges that should be overcome and some effective solutions are also manifested, which will guide the future development of more effective textile fiber‐based flexible wearable devices.

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“…% deposition of activated carbon increased the specific capacitance to 920 from 8.67 mF/g for the control sample. Similarly, MnO 2 decorated carbon fibers, grown via a simple hydrothermal method, achieved a specific capacitance of 1 F/g at 1 mV/s, [27] a 120 fold increase relative to control fibers.…”

Section: Introductionmentioning

confidence: 98%

“…Nevertheless, significant increases in specific capacitance when using carbon fibers has been realized when using high surface area nanomaterials, such as activated carbon, as reported by Qi and Zhang et al [ 26 ] Here at 13 wt.% deposition of activated carbon increased the specific capacitance to 920 from 8.67 mF/g for the control sample. Similarly, MnO 2 decorated carbon fibers, grown via a simple hydrothermal method, achieved a specific capacitance of 1 F/g at 1 mV/s, [ 27 ] a 120 fold increase relative to control fibers.…”

Section: Introductionmentioning

confidence: 99%

Imbuing carbon fibers with electrochemical storage properties without compromising fiber‐to‐matrix adhesion

et al. 2022

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The application of carbon fiber in structural batteries and capacitors may be advanced by increasing the surface functionality of these materials. Herein, we describe the electrochemical surface modification to attach ferrocene containing polymers to the carbon fiber surface. This was carried out using a ferrocene monomer in isolation, and as part of a blend in acrylamide. The ferrocene-containing polymers significantly improve the interfacial shear strength (+180%) in an epoxy resin and improves the tensile strength of the fiber by more than 10%, compared to a control sample (modified fiber 3.81 ± 0.08 GPa; pristine fiber 3.56 ± 0.09 GPa, respectively). These polymers also improve the specific capacitance of the fiber (1250 mF g À1 ) compared to pristine (113 mF g À1 ). An excellent retention of capacitance (80%) was also found for these modified materials via galvanostatic charge-discharge stability tests after 1000 charge-discharge cycles.

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Multifunctional structural composite supercapacitors based on MnO2-nanowhiskers decorated carbon fibers

Cited by 25 publications

References 55 publications

Waste-Cotton-Cloth-Derived Sustainable and Flexible High-Performance Supercapacitor

Waste-Cotton-Cloth-Derived Sustainable and Flexible High-Performance Supercapacitor

Recent Advances in Flexible Wearable Technology: From Textile Fibers to Devices

Imbuing carbon fibers with electrochemical storage properties without compromising fiber‐to‐matrix adhesion

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