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  4. Reinforced polypyrrole with 2D graphene flakes decorated with interconnected nickel-tungsten metal oxide complex toward superiorly stable supercapacitor
 
research article

Reinforced polypyrrole with 2D graphene flakes decorated with interconnected nickel-tungsten metal oxide complex toward superiorly stable supercapacitor

Hashemi, Seyyed Alireza
•
Mousavi, Seyyed Mojtaba
•
Naderi, Hamid Reza
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August 15, 2021
Chemical Engineering Journal

Prompt development of electronic devices and sensors raised the requirement for design/fabrication of advanced energy sources capable of providing considerable amount of energy for consuming platforms through practical nanotechnological approaches. For this aim, we have developed a highly active 2D nanostructure consisted of reinforced conductive polypyrrole (PPy) with decorated reduced graphene oxide (rGO) with hybrid metal oxide complex of Ni/W (PPy-G-Ni-W) toward supercapacitor applications. The hybrid 2D platform showed remarkable specific capacitance of 597 F.g(-1) and 557 F.g(-1) using CV and GCD analyses, respectively, through using three-electrode system. The developed supercapacitor exhibited fantastic stability upon maintaining 98.2% of its total performance after 5000 charge-discharge cycles. Likewise, the applicable two-electrode device using same electrode configurations composed of PPy-G-Ni-W//PPy-G-Ni-W showed specific capacitances of 361 F.g(-1) and 342 F.g(-1) at scan rate and current density of 2 mV.s(-1) and 0.5 A.g(-1) using CV and GCD techniques, respectively. Outcome of optimum supercapacitance configuration consisted of two-electrode system exhibits ideal energy density of 14.4 Wh.kg(-1) at power density of 275 W.kg(-1). More importantly, the device preserved 96.4% of its total specific capacitance after 5000 charge-discharge cycles which highlighting the excellent capacitive capability along with ultra-stability of the developed platform toward real energy applications.

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Type
research article
DOI
10.1016/j.cej.2021.129396
Web of Science ID

WOS:000655660700004

Author(s)
Hashemi, Seyyed Alireza
Mousavi, Seyyed Mojtaba
Naderi, Hamid Reza
Bahrani, Sonia
Arjmand, Mohammad
Hagfeldt, Anders  
Chiang, Wei-Hung
Ramakrishna, Seeram
Date Issued

2021-08-15

Publisher

ELSEVIER SCIENCE SA

Published in
Chemical Engineering Journal
Volume

418

Article Number

129396

Subjects

Engineering, Environmental

•

Engineering, Chemical

•

Engineering

•

graphene

•

supercapacitor

•

polymeric structure

•

hybrid nanostructure

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porous carbon

•

electrode materials

•

nio nanoparticles

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precise detection

•

hybrid

•

composite

•

polyaniline

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nanotube

•

paper

•

adsorption

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
LSPM  
Available on Infoscience
June 19, 2021
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/179247
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