3D porous PEDOT/MXene scaffold toward high-performance supercapacitors

Ma, Yingyi; Xu, Kaizheng; Liu, Xiaoting; Yao, Shun; Li, Xinzheng; Si, Yu; Li, Xinran

doi:10.1016/j.cej.2024.154348

Chemical Engineering Journal

2024

DOI: 10.1016/j.cej.2024.154348

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3D porous PEDOT/MXene scaffold toward high-performance supercapacitors

Yingyi Ma,

Kaizheng Xu,

Xiaoting Liu

et al.

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Cited by 3 publications

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High rate capability and ultra‐long cycling life: Electrochemical synthesis of PEDOT based electrode material doped with AMPS and its supercapacitor application

Yazar,

Yilmaz,

Atun

2024

J of Applied Polymer Sci

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Poly(3,4‐ethylene dioxythiophene) (PEDOT) is a conducting polymer that can be used in flexible bioelectronic devices. The electrode/electrolyte interface interaction is one of the most important factors in improving the electrochemical performance of energy storage materials, and these polymers are often combined with a negatively charged poly(styrene sulfonate) (PSS) chain to improve their interaction with alkali metal cations such as sodium and potassium. In this work, we performed a one‐step electrochemical synthesis of PEDOT on carbon fabric using the molecule 2‐acrylamido‐2‐methyl‐1‐propane sulfonic acid (AMPS) to create highly effective materials for supercapacitor electrodes. The electrode had a significant increase in capacitance value, measured 16.4 times higher than that of the PEDOT electrode. The 2‐electrode system exhibited a specific capacitance value of 495.2 F g−1 at a scan rate of 5 mV s−1. It exhibited a high operating voltage of 2.3 V in aqueous electrolyte system. It showed a significant energy density of 109.0 Wh kg−1 when operating at 6.1 kW kg−1 power density and 85.2 Wh kg−1 when operating at 30.6 kW kg−1 power density. Recent findings reveal that the capacitance retention performance value of the device increased significantly to 113.9% after 25,000 cycles in 3.0 M NaCl aqueous electrolyte, demonstrating its outstanding long‐term durability. Thus, the creation of the synthesized supercapacitor electrode is a significant advance in the study of conducting polymers, which often have a limited lifetime in real‐world electronic applications.

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High rate capability and ultra‐long cycling life: Electrochemical synthesis of PEDOT based electrode material doped with AMPS and its supercapacitor application

Yazar,

Yilmaz,

Atun

2024

J of Applied Polymer Sci

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Screen-Printed Alkalized Ti₃C₂T_x MXene–PEDOT Nanofibers as Alternative Photocathodes for Dye Sensitized Solar Cells

Nagalingam,

Josephine Malathi,

Pandiaraj

et al. 2024

ACS Appl. Nano Mater.

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The advancement of dye-sensitized solar cells (DSSCs) critically hinges on the innovation of cost-effective, high-performance counter electrode (CE) catalysts. This research outlines a synthesis route for fabricating platinum (Pt)-free CE catalysts, specifically alkalized Ti 3 C 2 T x MXene−PEDOT nanofibers (a-Ti 3 C 2 T x -PNFs). The synthesis methodology entails the alkalization of acid-etched Ti 3 C 2 T x using KOH, followed by intercalation with PEDOT nanofibers. The formation of the hybrid a-Ti 3 C 2 T x -PNFs was confirmed through an array of characterization techniques, including XRD, XPS, HRSEM, and HRTEM. Electrochemical evaluations revealed that the a-Ti 3 C 2 T x -PNF hybrid exhibits exceptional catalytic reduction capabilities and demonstrates a remarkably low chargetransfer resistance of 8.5 Ω cm 2 for the reduction of triiodide electrolyte. Consequently, DSSCs incorporating the a-Ti 3 C 2 T x -PNF CE achieved a power conversion efficiency (PCE) of 7.1% under optimized conditions, closely approaching the 8.06% efficiency observed with Pt-based CEs. Moreover, the reproducibility and stability tests confirmed that the a-Ti 3 C 2 T x -PNF CE offers consistent performance and high corrosion resistance in iodide/triiodide electrolyte. These findings emphasize the possibility of using a-Ti 3 C 2 T x -PNFs as a practical substitute for platinum in high-performance DSSCs, representing a notable advancement in the progress of contemporary solar cell technology.

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Fabrication methods, pseudocapacitance characteristics, and integration of conjugated conducting polymers in electrochemical energy storage devices

Heydari Gharahcheshmeh,

Chowdhury

2024

Energy Adv.

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3D porous PEDOT/MXene scaffold toward high-performance supercapacitors

Cited by 3 publications

References 47 publications

High rate capability and ultra‐long cycling life: Electrochemical synthesis of PEDOT based electrode material doped with AMPS and its supercapacitor application

High rate capability and ultra‐long cycling life: Electrochemical synthesis of PEDOT based electrode material doped with AMPS and its supercapacitor application

Screen-Printed Alkalized Ti₃C₂T_x MXene–PEDOT Nanofibers as Alternative Photocathodes for Dye Sensitized Solar Cells

Fabrication methods, pseudocapacitance characteristics, and integration of conjugated conducting polymers in electrochemical energy storage devices

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3D porous PEDOT/MXene scaffold toward high-performance supercapacitors

Cited by 3 publications

References 47 publications

High rate capability and ultra‐long cycling life: Electrochemical synthesis of PEDOT based electrode material doped with AMPS and its supercapacitor application

High rate capability and ultra‐long cycling life: Electrochemical synthesis of PEDOT based electrode material doped with AMPS and its supercapacitor application

Screen-Printed Alkalized Ti3C2Tx MXene–PEDOT Nanofibers as Alternative Photocathodes for Dye Sensitized Solar Cells

Fabrication methods, pseudocapacitance characteristics, and integration of conjugated conducting polymers in electrochemical energy storage devices

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Product

Resources

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Screen-Printed Alkalized Ti₃C₂T_x MXene–PEDOT Nanofibers as Alternative Photocathodes for Dye Sensitized Solar Cells