Robust fabrication of silver pyro-vanadates via sonochemical approach for advanced energy storage application

Pandiyarajan, Sabarison; Rajkumar, S.; Manickaraj, Shobana Sebastin Mary; Chuang, Ho‐Chiao; Johnson, Princy Merlin

doi:10.1016/j.jallcom.2021.162268

Cited by 21 publications

(5 citation statements)

References 45 publications

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“…The strong peaks were closely associated with the chemical composition as well as the structure of the electrode material. The anodic and cathodic peaks increased with the increase in scan rate, suggesting the high conductivity of the fabricated electrode and the occurrence of faster oxidation and reduction reaction at the electrode‐electrolyte interface 8,42,44 …”

Section: Resultsmentioning

confidence: 99%

“…The anodic and cathodic peaks increased with the increase in scan rate, suggesting the high conductivity of the fabricated electrode and the occurrence of faster oxidation and reduction reaction at the electrode-electrolyte interface. 8,42,44 Figure 5A portrayed the trend of C sp values with scan rate, which indicated that the capacitance value decreased with the increase in scan rate. This is due to the OH À ions, which have adequate time for intercalation with ZrW 2 O 8 NPs electrode at low scan rate.…”

Section: Structural Analysis Of Zrw 2 O 8 Npsmentioning

confidence: 99%

“…6,7 In addition, SCs proved their superior efficiency in portable/flexible electronic devices than the batteries. 2,6,8,9 On the basis of storage mechanism, SCs can be classified into two types, such as Electrical Double-Layer Capacitors (EDLCs) and pseudocapacitors (PC). 10,11 In EDLC, the electric charge is stored at the electrode-electrolyte interfaces, while pseudocapacitors delivered the energy by Faradaic redox reactions.…”

Section: Introductionmentioning

confidence: 99%

“…Among the electrochemical based energy storage and conversion systems, supercapacitors are known to be efficient, owing to their improved energy and power density, extended cycle life etc 6,7 . In addition, SCs proved their superior efficiency in portable/flexible electronic devices than the batteries 2,6,8,9 . On the basis of storage mechanism, SCs can be classified into two types, such as Electrical Double‐Layer Capacitors (EDLCs) and pseudocapacitors (PC) 10,11 .…”

Section: Introductionmentioning

confidence: 99%

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Facile synthesis of platelet‐like zirconium tungstate nanostructures for high‐performance supercapacitors

Elaiyappillai

Rajkumar

Wang

et al. 2022

Intl J of Energy Research

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Increasing demand for electronic devices has sparked quantum of research work on energy storage systems. In the present work, we report the facile synthesis of platelet-like Zirconium tungstate (ZrW 2 O 8 NPs) binary metal oxide via co-precipitation method. The ZrW 2 O 8 NPs was confirmed by several physicochemical techniques. Furthermore, FESEM images proved the platelet-like morphology of ZrW 2 O 8 NPs. The as-prepared ZrW 2 O 8 NPs was used as electrode material in the fabrication of supercapacitors. ZrW 2 O 8 NPs @ Ni foil shows the specific capacitance (C sp ) maximum of 508 F g À1 at 5 mV/s and showed 91.3% of cyclic stability after 4000 GCD cycles. As a result, ZrW 2 O 8 NPs was utilized as an anode electrode material to construct an asymmetric device, ZrW 2 O 8 NPs jj Activated carbon (AC). The as-fabricated device showed the energy density of 9.65 Wh kg À1 related to the power density of 299.48 W kg À1 . The effective supercapacitive behavior might be due to the unique morphological features, occurrence of multiple redox sites, and enhanced electrical conductivity of ZrW 2 O 8 NPs. Thus, all these findings account for the applicability of ZrW 2 O 8 NPs as electrode material in highperformance supercapacitors.

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Section: Resultsmentioning

confidence: 99%

Section: Structural Analysis Of Zrw 2 O 8 Npsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Facile synthesis of platelet‐like zirconium tungstate nanostructures for high‐performance supercapacitors

Elaiyappillai

Rajkumar

Wang

et al. 2022

Intl J of Energy Research

View full text Add to dashboard Cite

show abstract

“…14,15 Pseudocapacitors (PCs) store charges by quick and reversible redox reactions. 16,17 A hybrid capacitor consists of two electrodes that have two different charge-storage mechanisms: one capacitive and one battery-type faradaic. 18 The development of nanostructured electrode materials could aid the construction of advanced SCs.…”

Section: Introductionmentioning

confidence: 99%