Study of electrochemical behavior of rGO and Metal-Organic Framework nanocomposite electrodes for supercapacitive applications DOI
Meena Yadav, Isha Saini,

Nidhi Shekhawat

et al.

Physica Scripta, Journal Year: 2024, Volume and Issue: 99(11), P. 115925 - 115925

Published: Sept. 24, 2024

Abstract This research studied the electrochemical performance of reduced Graphene Oxide (rGO) and a nanocomposite comprising rGO Metal–Organic Framework-5 (MOF-5) for supercapacitor applications. The nanocomposite, synthesized through solvothermal method, aimed to capitalize on synergistic effects combining with MOF-5 under normal laboratory conditions without utilizing autoclave. By adjusting concentration oxidizing agent, oxidation degree was effectively regulated, thereby influencing its structural properties. Utilizing optimized rGO, electrodes were fabricated both MOF5-rGO configurations. Electrochemical studies carried out using three-electrode (3E) system 6M KOH electrolyte. MOF-5, graphene oxide (rGO), samples characterized x-ray powder diffraction (XRD), infrared spectroscopy (IR), scanning electron microscopy (SEM), thermogravimetric analysis (TGA) determine their chemical composition information. Impedance Spectroscopy (EIS) spectra show low internal resistance (R s ) charge transfer ct ), indicating higher conductivity nanocomposite. electrode in 3E showed specific capacitance 65 Fg −1 whereas displayed 73 at current density 1.2 Ag . demonstrates better capacitor retention (96%) compared (90%) 5A/g. These results indicate that sample is promising application.

Language: Английский

Recent advancements in cathode materials for high-performance Li-ion batteries: Progress and prospects DOI

Shruti Kaushik,

Tushar Mehta,

Prakash Chand

et al.

Journal of Energy Storage, Journal Year: 2024, Volume and Issue: 97, P. 112818 - 112818

Published: July 6, 2024

Language: Английский

Citations

26
High-performance pristine ZIF-67 asymmetric supercapacitor device with excellent energy and power density for energy storage application DOI

Shruti Kaushik,

Prakash Chand, Swati Sharma

et al.

Electrochimica Acta, Journal Year: 2024, Volume and Issue: 497, P. 144565 - 144565

Published: June 12, 2024

Language: Английский

Citations

19
Impact of Sm3+ on Cu2O:Co and subsequent attributes in structural, optical and electrochemical aspects DOI
Naveen Kumar, Sanjeeb Limbu, Swati Sharma

et al.

Optical Materials, Journal Year: 2025, Volume and Issue: unknown, P. 116874 - 116874

Published: Feb. 1, 2025

Language: Английский

Citations

4
Ultrahigh energy and power density of zeolitic imidazolate framework-8 asymmetric and symmetric supercapacitors in an organic electrolyte for energy storage devices DOI
Swati Sharma, Prakash Chand

Journal of Energy Storage, Journal Year: 2024, Volume and Issue: 94, P. 112459 - 112459

Published: June 8, 2024

Language: Английский

Citations

14
A critical review of recent advancements in zinc based metal organic framework nanocomposites and their derivatives for supercapacitor applications with future perspectives and challenges DOI
Swati Sharma, Prakash Chand,

Shruti Kaushik

et al.

Sustainable materials and technologies, Journal Year: 2024, Volume and Issue: 41, P. e01045 - e01045

Published: July 9, 2024

Language: Английский

Citations

13
Fabrication of ultrahigh capacitance supercapacitor device with superior energy density of sustainable ligand-based zinc-oxide in redox additive electrolyte DOI

Tushar Mehta,

Prakash Chand,

Swati Sharma

et al.

Journal of Energy Storage, Journal Year: 2025, Volume and Issue: 121, P. 116565 - 116565

Published: April 11, 2025

Language: Английский

Citations

1
Ultrahigh energy density with superior cyclic stability of calcined ZIF-8 based asymmetric supercapacitor device in redox additive electrolyte DOI
Swati Sharma, Prakash Chand

Journal of Energy Storage, Journal Year: 2024, Volume and Issue: 104, P. 114523 - 114523

Published: Nov. 7, 2024

Language: Английский

Citations

5
Unraveling the Role of Pressure, Oxidation State, and Morphology in CO2 Electroreduction to C2+ Products over Copper Oxides DOI Creative Commons
Asghar Ali, Ali S. Alnaser

Nanoscale Advances, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

This study provides compelling experimental evidence of the synergistic effects reaction pressure, oxidation state, and catalyst morphology on C2+ selectivity copper (Cu) oxide catalysts in electrochemical CO2 reduction (ECR). We employed femtosecond laser structuring thermal treatments to synthesize Cu(0), Cu(i), Cu(ii), a mixed state Cu(x) with characteristic micro- nano-morphologies. The optimal pressure for maximizing productivity aqueous bicarbonate media was established by assessing products at different imposed pressures custom-designed, pressurizable two-compartment cell. Among thermally produced Cu(i) only unstructured exhibiting ethylene gas-phase selectivity. Nanostructuring enhanced such that all three states could produce ethylene. More importantly, nanostructured comprising well-dispersed exhibited as well ethane production - associated undercoordinated Cu stabilizing intermediates facilitating charge transfer yield longer products. work important insights into key factors influencing Cu-based catalysts, establishing basis an informed design high-energy density

Language: Английский

Citations

0
Surfactant-assisted ZIF-8/Graphene nanoplatelets nanocomposite based electrode material for high performance supercapacitor applications DOI
Swati Sharma, Prakash Chand

Electrochimica Acta, Journal Year: 2025, Volume and Issue: unknown, P. 146498 - 146498

Published: May 1, 2025

Language: Английский

Citations

0
Study of electrochemical behavior of rGO and Metal-Organic Framework nanocomposite electrodes for supercapacitive applications DOI
Meena Yadav, Isha Saini,

Nidhi Shekhawat

et al.

Physica Scripta, Journal Year: 2024, Volume and Issue: 99(11), P. 115925 - 115925

Published: Sept. 24, 2024

Abstract This research studied the electrochemical performance of reduced Graphene Oxide (rGO) and a nanocomposite comprising rGO Metal–Organic Framework-5 (MOF-5) for supercapacitor applications. The nanocomposite, synthesized through solvothermal method, aimed to capitalize on synergistic effects combining with MOF-5 under normal laboratory conditions without utilizing autoclave. By adjusting concentration oxidizing agent, oxidation degree was effectively regulated, thereby influencing its structural properties. Utilizing optimized rGO, electrodes were fabricated both MOF5-rGO configurations. Electrochemical studies carried out using three-electrode (3E) system 6M KOH electrolyte. MOF-5, graphene oxide (rGO), samples characterized x-ray powder diffraction (XRD), infrared spectroscopy (IR), scanning electron microscopy (SEM), thermogravimetric analysis (TGA) determine their chemical composition information. Impedance Spectroscopy (EIS) spectra show low internal resistance (R s ) charge transfer ct ), indicating higher conductivity nanocomposite. electrode in 3E showed specific capacitance 65 Fg −1 whereas displayed 73 at current density 1.2 Ag . demonstrates better capacitor retention (96%) compared (90%) 5A/g. These results indicate that sample is promising application.

Language: Английский

Citations

2