Binary composites of strontium oxide/polyaniline for high performance supercapattery devices

Iqbal, Muhammad Zahir; Alam, Shahid; Afzal, Amir Muhammad; Iqbal, Muhammad Javaid; Yaqoob, Khurram; Kamran, Muhammad Arshad; Karim, Muhammad Ramzan Abdul; Alherbi, Thamer

doi:10.1016/j.ssi.2020.115276

Cited by 52 publications

(27 citation statements)

References 64 publications

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“…The CV spectrum for the electrode materials including S1 and S2 have been displayed in Figure 4A,B. The explicit representation of Faradic reactions by the redox peaks in these CV profiles clearly illustrates the battery‐grade nature of S1 and S2 electrodes 45‐47 . With increasing scan rates, it is observed that faradic peak current shifts both in a horizontal and vertical direction toward the potential value which indicates the fast kinetics of ionic species that expedites the redox reactions and enhance peak current.…”

Section: Resultsmentioning

confidence: 96%

“…The explicit representation of Faradic reactions by the redox peaks in these CV profiles clearly illustrates the battery-grade nature of S1 and S2 electrodes. [45][46][47] With increasing scan rates, it is observed that faradic peak current shifts both in a horizontal and vertical direction toward the potential value which indicates the fast kinetics of ionic species that expedites the redox reactions and enhance peak current. On analysis, it has been noticed that S2 in these figures, exhibits minimum peak shift which signifies its excellent rate capability, potential stability and durability corresponding to S1.…”

Section: Electrochemical Analysis Via Cyclic Voltammetrymentioning

confidence: 99%

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Investigation of magnetron sputtered Ni@Cu/ WS ₂ as an electrode material for potential supercapattery devices

Iqbal

Alzaid

Abbasi

et al. 2022

Intl J of Energy Research

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Summary The supercapattery, a hybrid device with both capacitive and battery characteristics, owing to its excellent energy, capacity and power capabilities has broadly been recognized as an eminent energy storage device. With such fascinating features, it still craves for efficient electrode materials to improve energy storage performance. Our study presents the electrochemical analysis of magnetron sputtered pristine tungsten disulfide (WS2) and WS2 anchored over copper (Cu) interfacial layer by employing nickel foam as a current collector. To probe the structural composition, surface morphology and elemental analysis of sputtered materials, X‐ray diffraction, scanning electron microscopy and energy‐dispersive X‐ray spectroscopy are utilized. By employing three‐electrode cell configuration the deposited electrodes are then examined for electrochemical characterizations. The optimal electrode Ni@Cu/WS2 (S2) in this assembly revealed a specific capacity (Qs) of 357 C/g at 3 mV/s and 247.4 C/g at 0.5 A/g. Relying on the electrochemical performance, S2 is further utilized for asymmetric architecture (hybrid device), and hence attained Qs of 185.8 C/g and divulged high energy (Ed) and power (Pd) of 43.9 Wh/kg and 425 W/kg, respectively. Furthermore, for cyclic performance at a high current density js of 8 A/g, the device exhibited efficient stability performance of 98.1% against 4500 consecutive galvanostatic charge discharge (GCD) cycles. Moreover, by applying the semi‐empirical approach, a device is assessed for capacitive and diffusive contribution, with maximum contribution of 36.93% and 93.68% against potential scan rates of 100 and 3 mV/s, respectively. All the intriguing results attained via magnetron sputtered S2 vibrantly increase its worth as an electrode material for practical hybrid device applications.

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Section: Resultsmentioning

confidence: 96%

Section: Electrochemical Analysis Via Cyclic Voltammetrymentioning

confidence: 99%

Investigation of magnetron sputtered Ni@Cu/ WS ₂ as an electrode material for potential supercapattery devices

Iqbal

Alzaid

Abbasi

et al. 2022

Intl J of Energy Research

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“…The conducting polymers show excellent electronic and optoelectronic properties and possess high conductivity because of their long‐chain electron systems 44 . Various organic polymers like polypyrrole, polythiophene, and polyaniline (PANI) have been utilized for many environmental, electrical, and electrochemical applications, such as photocatalysts, 45,46 sensors, 47,48 batteries, 49 and supercapacitors 50‐53 . Among these materials, PANI has been extensively utilized due to its exceptional properties like excellent electrochemical performance, thermal stability, cost‐effectiveness, and facile synthesis 54 .…”

Section: Introductionmentioning

confidence: 99%

Green synthesis of nickel‐manganese/polyaniline‐based ternary composites for high‐performance supercapattery devices

2021

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Summary The study divulges formation of nickel‐manganese phosphate and polyaniline (NiMn(PO4)2‐PANI)‐based ternary composites at different aspect ratios, synthesized via facile sonochemical method. The composite is utilized for high‐performance energy storage applications. The composite with 30 wt% PANI depicts the best electrochemical performance with maximum specific capacity (Qs) of 847 C g−1 at 0.5 A g−1 in three‐electrode assembly. The supercapattery device is assembled by utilizing NiMn(PO4)2‐PANI and activated carbon. The supercapattery demonstrates outstanding performance by delivering a remarkable specific energy of 71.3 Wh kg−1, and the maximum specific power is 12 686 W kg−1 and capacity retention of 97.6% after 5000 GCD series. Furthermore, the diffusive and capacitive mechanism is evaluated by applying Dunn's model. The b values are calculated to confirm the hybrid nature of the device. The study depicts the potentials of reported ternary composites as self‐supported electrode materials in the development of cost‐effective and efficient energy storage system.

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“…[1][2][3] The development of storage batteries (SBs) and supercapacitors (SCs) as energy storage systems over the last few decades is widely acknowledged as an important link in this chain of development, but a considerable amount of work remains to be done. 4,5 The gap between the two can be bridged either by (a) combining capacitive and battery-grade electrodes in asymmetric hybrid devices 6,7 or (b) finding electrode materials that possess the characteristics of both and can neither be characterized as purely capacitive or battery grade. Indeed, broad generalizations have been made to make these classifications however, and there are materials that cannot be classified as any of these (Figure 1).…”

Section: Introductionmentioning

confidence: 99%

Evaluation of battery‐grade alkaline earth metal sulfide electrodes for energy storage applications

Pervez

Iqbal

2022

Intl J of Energy Research

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Summary Alkaline earth and transition metal sulfides have been recognized as promising electrode materials for electrochemical energy storage on account of their reversibility, electroconductivity, and rate capability. In this work, we explore the energy storage profile of a strontium sulfide, SrS, electrode developed via the sonochemical method providing a capacity of 451 C/g. We then sift out its capacitive and diffusive contributions using Dunn's model and extend the analysis by examining the correlation between the regression parameters k1 and k2 of the model in greater detail to bring to light electrochemical features that are obscured by the currently prevailing methods of presenting data for cyclic voltammetry experiments. This method presented here may be generalized to other electrode materials to unveil hidden processes in various electrochemical energy storage systems.

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Binary composites of strontium oxide/polyaniline for high performance supercapattery devices

Cited by 52 publications

References 64 publications

Investigation of magnetron sputtered Ni@Cu/ WS ₂ as an electrode material for potential supercapattery devices

Investigation of magnetron sputtered Ni@Cu/ WS ₂ as an electrode material for potential supercapattery devices

Green synthesis of nickel‐manganese/polyaniline‐based ternary composites for high‐performance supercapattery devices

Evaluation of battery‐grade alkaline earth metal sulfide electrodes for energy storage applications

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Binary composites of strontium oxide/polyaniline for high performance supercapattery devices

Cited by 52 publications

References 64 publications

Investigation of magnetron sputtered Ni@Cu/ WS 2 as an electrode material for potential supercapattery devices

Investigation of magnetron sputtered Ni@Cu/ WS 2 as an electrode material for potential supercapattery devices

Green synthesis of nickel‐manganese/polyaniline‐based ternary composites for high‐performance supercapattery devices

Evaluation of battery‐grade alkaline earth metal sulfide electrodes for energy storage applications

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Investigation of magnetron sputtered Ni@Cu/ WS ₂ as an electrode material for potential supercapattery devices

Investigation of magnetron sputtered Ni@Cu/ WS ₂ as an electrode material for potential supercapattery devices