Synthesis and characterization of Sr-doped CdO nanoplatelets for supercapacitor applications

Xavier, A. Robert; Ravichandran, A. T.; Vijayakumar, S.; Angelin, M. Dhivya; Rajkumar, S.

doi:10.1007/s10854-021-06329-z

Cited by 24 publications

(6 citation statements)

References 36 publications

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“…In addition, CdO undergoes significant changes in its energy storage efficiency with respect to its morphological features. In the previous report, Kumar et al reported the specific capacitance of the rod-shaped CdO NPs which is 183 F g –1 at 20 m V s –1 , while for the CdO nanowires and nanoplatelets, the reported values of specific capacitance are 5 and 60 at 100 mV s –1 , respectively. Based on the extensive literature reports, even though several morphological features have been reported for the CdO NPs, honeycomb-like morphological featured particles have not been reported, and such kind of morphological features have played a vital role in energy storage applications.…”

Section: Introductionmentioning

confidence: 99%

Acoustic Shock Wave-Induced Solid-State Fusion of Nanoparticles: A Case Study of the Conversion of One-Dimensional Rod Shape into Three-Dimensional Honeycomb Nanostructures of CdO for High-Performance Energy Storage Materials

Aswathappa,

Dai,

Jude Dhas

et al. 2023

Inorg. Chem.

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Herein, we describe the solid-state fusion of rod-shaped to honeycombshaped cadmium oxide particles (CdO NPs) caused by the process of repeated exposure to acoustic shock waves. Significant changes have been observed in structurally and morphologically dependent properties. For instance, at the 200-shocked condition, the high-pressure CdO-B2 phase is present as a secondary phase wherein all of the rodshaped particles have been transformed into honeycomb-shaped CdO particles which possess comparatively higher specific-capacitance than CdO nanorods (NRs). The computed specific capacitance values for the 0, 100, and 200 shocked samples at a scan rate of 100 m V s −1 are computed to be 433, 415, and 583 F g −1 , respectively. The second-stage decomposition temperature points of the CdO NPs have significantly increased in accordance with the morphological changes from rod to honeycomb patterns such that the values are 343, 526, and 534 °C, respectively, for 0, 100, and 200 shocked conditions. Note that such honeycomb nanostructured CdO particles by shock-wave processing have never been observed, to date. Due to the superior energy storage abilities as well as the spectacular high thermal stability of the honeycomb CdO nanostructures compared to CdO NRs, shocked CdO with honeycomb nanostructures can be considered as energy storage materials.

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Section: Introductionmentioning

confidence: 99%

Acoustic Shock Wave-Induced Solid-State Fusion of Nanoparticles: A Case Study of the Conversion of One-Dimensional Rod Shape into Three-Dimensional Honeycomb Nanostructures of CdO for High-Performance Energy Storage Materials

Aswathappa,

Dai,

Jude Dhas

et al. 2023

Inorg. Chem.

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“…In recent years, they have received a great deal of attention for developing next-generation smart and portable electronic devices. 4,5 However, to fulfil increasing energy demands for the next generation in developing portable and flexible devices, the energy density of energy storage devices (ESDs) needs to be considerably higher without losing power density and cycle life. 6,7 Thus, SCs or ultracapacitors are considered the cutting-edge of technology because of their unique ability to bridge the gap between capacitors and batteries.…”

Section: Introductionmentioning

confidence: 99%

Biomass-derived porous activated carbon from anacardium occidentale shell as electrode material for supercapacitors

et al. 2022

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“…21,25 In addition, the multiple oxidation states in the mixed or simple binary MOs outpace the simple MO in terms of electrochemical applications. 24,26,27 Based on the above consideration, several studies are performed to utilize the advantages of tungstate-based metal oxides in the fields of batteries, supercapacitors etc., 19,28,29 Thus, we proposed to design ZrW 2 O 8 NPs as electrode material in supercapacitor. Although different applications were proposed on ZrW 2 O 8 NPs, the published research literature in the field of energy storage system is still limited.…”

Section: Introductionmentioning

confidence: 99%

“…Because of the improved optical, mechanical, chemical, and electrical properties, nanostructured binary metal oxides (MOs) are widely used for energy storage applications 21,25 . In addition, the multiple oxidation states in the mixed or simple binary MOs outpace the simple MO in terms of electrochemical applications 24,26,27 . Based on the above consideration, several studies are performed to utilize the advantages of tungstate‐based metal oxides in the fields of batteries, supercapacitors etc., 19,28,29 Thus, we proposed to design ZrW 2 O 8 NPs as electrode material in supercapacitor.…”

Section: Introductionmentioning

confidence: 99%

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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Synthesis and characterization of Sr-doped CdO nanoplatelets for supercapacitor applications

Cited by 24 publications

References 36 publications

Acoustic Shock Wave-Induced Solid-State Fusion of Nanoparticles: A Case Study of the Conversion of One-Dimensional Rod Shape into Three-Dimensional Honeycomb Nanostructures of CdO for High-Performance Energy Storage Materials

Acoustic Shock Wave-Induced Solid-State Fusion of Nanoparticles: A Case Study of the Conversion of One-Dimensional Rod Shape into Three-Dimensional Honeycomb Nanostructures of CdO for High-Performance Energy Storage Materials

Biomass-derived porous activated carbon from anacardium occidentale shell as electrode material for supercapacitors

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

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