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author:

Akram, Adeel (Akram, Adeel.) [1] | Liaqat, Muhammad Arman (Liaqat, Muhammad Arman.) [2] | Javed, Sofia (Javed, Sofia.) [3] | Hamid, Muhammad (Hamid, Muhammad.) [4] | Ali, Usman (Ali, Usman.) [5] | Javed, Faiza (Javed, Faiza.) [6] | Wei, Mingdeng (Wei, Mingdeng.) [7] | Akram, Muhammad Aftab (Akram, Muhammad Aftab.) [8]

Indexed by:

EI

Abstract:

One of the key challenges has been taken to design high performance hybrid energy storage devices using electrodes based on capacitive graphene nanoplatelets (GNPs) and pseudocapacitive metal organic frameworks (MOFs) with high energy storage, power density and long-life cycles. Herein, we are introducing novel hybrid capacitors based on highly porous composite electrodes of ZIF-67/GNPs and ZIF-8/GNPs and redox additive electrolyte (RAE) that is, 0.2 M [K3(Fe (CN)6)] in 1 M Na2SO4. The ZIF-67/GNPs and ZIF-8/GNPs composite electrodes were used to fabricate the asymmetric supercapacitor devices using MOFs/GNPs as a positive electrode and GNPs as the negative electrode in the presence of RAE exhibited high energy and power densities of 85.8 W h kg−1 and 60.7 W h kg−1 and 7500 W kg−1 and 7370 W kg−1, respectively at current density of 1 Ag−1. The asymmetric devices retain excellent capacitances of up to 97.7% (ZIF-67/GNPs) and 97.1% (ZIF-8/GNPs) along with remarkable columbic efficiencies near 100% after 10,000 charge discharge cycles at 2 Ag−1 in a wide voltage range of (0.0–1.5 V). © 2021 Elsevier B.V.

Keyword:

Additives Capacitance Electric discharges Electrodes Electrolytes Electrolytic capacitors Energy storage Life cycle Metal-Organic Frameworks Organometallics Sodium sulfate Supercapacitor

Community:

  • [ 1 ] [Akram, Adeel]Department of Materials Engineering, School of Chemical and Materials Engineering (SCME), National University of Sciences and Technology (NUST), Sector H-12, Islamabad; 44000, Pakistan
  • [ 2 ] [Liaqat, Muhammad Arman]Department of Materials Engineering, School of Chemical and Materials Engineering (SCME), National University of Sciences and Technology (NUST), Sector H-12, Islamabad; 44000, Pakistan
  • [ 3 ] [Javed, Sofia]Department of Materials Engineering, School of Chemical and Materials Engineering (SCME), National University of Sciences and Technology (NUST), Sector H-12, Islamabad; 44000, Pakistan
  • [ 4 ] [Hamid, Muhammad]Department of Materials Engineering, School of Chemical and Materials Engineering (SCME), National University of Sciences and Technology (NUST), Sector H-12, Islamabad; 44000, Pakistan
  • [ 5 ] [Ali, Usman]Department of Materials Engineering, School of Chemical and Materials Engineering (SCME), National University of Sciences and Technology (NUST), Sector H-12, Islamabad; 44000, Pakistan
  • [ 6 ] [Javed, Faiza]Centre for Micro and Nano Devices, Department of Physics, COMSATS University, Islamabad; 44000, Pakistan
  • [ 7 ] [Wei, Mingdeng]Fujian Provincial Key Laboratory of Electrochemical Energy Storage Materials, Fuzhou University, Fuzhou; Fujian; 350002, China
  • [ 8 ] [Akram, Muhammad Aftab]Department of Materials Engineering, School of Chemical and Materials Engineering (SCME), National University of Sciences and Technology (NUST), Sector H-12, Islamabad; 44000, Pakistan
  • [ 9 ] [Akram, Muhammad Aftab]Nanoscience and Technology Lab, NUST Interdisciplinary Cluster for Education, Sector H-12, Islamabad; 44000, Pakistan

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Source :

Journal of Alloys and Compounds

ISSN: 0925-8388

Year: 2022

Volume: 891

6 . 2

JCR@2022

5 . 8 0 0

JCR@2023

ESI HC Threshold:91

JCR Journal Grade:1

CAS Journal Grade:1

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count: 16

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 0

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