Self-Standing Polypyrrole/Black Phosphorus Laminated Film: Promising Electrode for Flexible Supercapacitor with Enhanced Capacitance and Cycling Stability

ACS Applied Materials & Interfaces
Shaojuan LuoHan Zhang

Abstract

With the rapid development of portable electronics, solid-state flexible supercapacitors (SCs) are considered as one of the promising energy devices in powering electronics because of their intrinsic advantages. Polypyrrole (PPy) is an ideal electrode material in constructing flexible SCs owing to its high electrochemical activity and inherent flexibility, although its relatively low capacitance and poor cycling stability are still worthy of improvement. Herein, through the innovative introduction of black phosphorus (BP) nanosheets, we developed a laminated PPy/BP self-standing film with enhanced capacitance and cycling stability via a facile one-step electrochemical deposition method. The film exhibits a high capacitance of 497.5 F g-1 (551.7 F cm-3) and outstanding cycling stability of 10 000 charging/discharging cycles, thanks to BP nanosheets inducing laminated assembly which hinder dense and disordered stacking of PPy during electrodeposition, consequently providing a precise pathway for ion diffusion and electron transport together with alleviation of the structural deterioration during charge/discharge. The flexible SC fabricated by laminated films delivers a high capacitance of 452.8 F g-1 (7.7 F cm-3) besides its rema...Continue Reading

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Citations

Nov 6, 2018·Nano-micro Letters·Santanu MukherjeeGurpreet Singh
Nov 2, 2019·Advanced Materials·Nicholas R GlavinPulickel M Ajayan
Apr 8, 2020·Proceedings of the National Academy of Sciences of the United States of America·Tianzhu ZhouQunfeng Cheng
Apr 23, 2019·European Journal of Inorganic Chemistry·Maurizio PeruzziniMatteo Vanni
Jan 30, 2020·Advanced Science·Shameel Thurakkal, Xiaoyan Zhang
Dec 3, 2020·Journal of Hazardous Materials·Rong HuXiang Qi
Nov 9, 2020·Biomaterials·Si MengS Meng
Jul 2, 2021·Advanced Science·Funian MoChunyi Zhi
Jan 23, 2020·Nano-micro Letters·Delong LiHeping Xie
Jul 30, 2021·Advanced Materials·Ye ZhangHan Zhang
Jan 31, 2019·ACS Applied Materials & Interfaces·Fei HanYang Huang

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