Title :

Au-assisted polymerization of conductive poly(N-phenylglycine) as high-performance positive electrodes for asymmetric supercapacitors

Author(s) :

Li, Min [Auteur]
Luo, Yunyun [Auteur]
Jia, Chen [Auteur]
Huang, Mimi [Auteur]
Yu, Mingzhi [Auteur]
Luo, Guoxi [Auteur]
Zhao, Libo [Auteur]
Boukherroub, Rabah [Auteur]
NanoBioInterfaces - IEMN [NBI - IEMN]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Jiang, Zhuangde [Auteur]

Journal title :

Nanotechnology

Pages :

045602

Publisher :

Institute of Physics

Publication date :

2022-01-22

ISSN :

0957-4484

HAL domain(s) :

Sciences de l'ingénieur [physics]

English abstract : [en]

Abstract Herein, a novel conductive poly(N-phenylglycine) (PNPG) polymer was successfully prepared, by in situ electrochemical polymerization method (+0.75 V versus Ag/AgCl) for 10 min, on flexible stainless-steel plate ...
Show more >Abstract Herein, a novel conductive poly(N-phenylglycine) (PNPG) polymer was successfully prepared, by in situ electrochemical polymerization method (+0.75 V versus Ag/AgCl) for 10 min, on flexible stainless-steel plate coated with a thin Au film (Au/SS) to serve as a binder-free pseudocapacitive PNPG/Au/SS electrode for energy storage devices. Compared to the electrode without Au coating, PNPG/Au/SS electrode exhibited better electrochemical performance with larger specific capacitance (495 F g −1 at a current density of 2 A g −1 ), higher rate performance and lower resistance, which are good indications to act as a positive electrode for asymmetric supercapacitor devices. Combined with activated carbon as a negative electrode, an asymmetric supercapacitor device was constructed. It displayed a specific capacitance of 38 F g −1 at a current density of 0.5 A g −1 and an energy density of 5.3 Wh kg −1 at a power density of 250 W kg −1 . Experimentally, two asymmetric supercapacitor devices were connected in series to power a home-made windmill continuously for 8 s, revealing the high potential of this novel conductive polymer material for energy storage application.Show less >

Language :

Anglais

Popular science :

Non

Collections :

• Institut d'Électronique, de Microélectronique et de Nanotechnologie (IEMN) - UMR 8520

Source :

Harvested from HAL