Magnetic CuFe2O4 Spinel–Polypyrrole Pseudocapacitive Composites for Energy Storage DOI Open Access
Mahmoud Awad, Igor Zhitomirsky

Materials, Journal Year: 2024, Volume and Issue: 17(21), P. 5249 - 5249

Published: Oct. 28, 2024

This investigation focused on the fabrication of ceramic ferrimagnetic CuFe2O4–conductive polypyrrole (PPy) composites for energy storage. CuFe2O4 with a crystal size 20–30 nm and saturation magnetization 31.4 emu g−1 was prepared by hydrothermal synthesis, PPy chemical polymerization. High-active-mass composite electrodes were fabricated storage in supercapacitors operation sodium sulfate electrolyte. The addition to resulted decrease charge transfer resistance an increase capacitance range from 1.20 F cm−2 (31 g−1) 4.52 (117.4 at 1 mV s−1 sweep rate 1.17 (29.9 4.60 (120.1 3 mA current density. showed higher than other magnetic same mass containing potential exhibited improved cyclic stability. behavior influenced properties paramagnetic PPy. valuable combination capacitive enriched materials science novel applications based magnetoelectric magnetocapacitive properties.

Language: Английский

Harnessing the synergistic effects of fabricated novel NBO/PANI nanocomposite for asymmetric supercapacitor with remarkable electrochemical performance DOI

Bhakti G. Thali,

Dhiraj S. Agrahari,

Rajesh M. Kamble

et al.

Materials Today Communications, Journal Year: 2025, Volume and Issue: 44, P. 111854 - 111854

Published: Feb. 7, 2025

Language: Английский

Citations

1
Enhancing the supercapacitor performance by manufacturing hybrid electrode based on foam-like graphene oxide / zinc oxide nanoparticles DOI

Shaymaa H. Jasim,

Ahmed S. Al-Asadi

Materials Science and Engineering B, Journal Year: 2025, Volume and Issue: 314, P. 118064 - 118064

Published: Jan. 31, 2025

Language: Английский

Citations

0
Piezo-Photocatalytic Generation of H2 with MoS2/ZnO/CuFe2O4 Nanosheets DOI
Mang Lu, Xuejiao Wu

ACS Applied Nano Materials, Journal Year: 2025, Volume and Issue: unknown

Published: March 4, 2025

Piezocatalytic generation of H2 is an emerging technology for the collection and application mechanical energy efficient production sustainable nowadays. To enable high-efficiency low-energy H2, we prepared three MoS2-based composites (MoS2/ZnO, MoS2/CuFe2O4, MoS2/ZnO/CuFe2O4) used them as catalysts green synthesis under mild magnetic stirring conditions (namely, hydraulic driving) to replace conventional ultrasonic vibration. MoS2/ZnO/CuFe2O4 displayed highest piezo-photocatalytic activity with a notable rate 3963 μmol g–1 h–1 in 10 vol % methanol–water mixture, accompanied by 1436, 3325, 2538 MoS2, MoS2/ZnO, respectively, at speed 400 rpm (hydraulic gradient, 0.123 s–1) 50 W light irradiation. A series characterizations analyses were performed comprehend insight into catalytic difference related reaction mechanisms. The improved performance can be ascribed enhanced absorption capability, reduced electron transfer resistance, separation efficiency charge carriers, all which are conducive evolution. Holes played major role generation. over was far higher than reported values obtained using ultrasound-driven piezocatalytic slurries. delivery also achieved lower consumption values. In comparison experiments this work, hydraulic-driven catalysis characterized remarkably requirements, less noise pollution, stronger structural stability catalysts. This study provides method renewable energy.

Language: Английский

Citations

0
Innovative Multiphase Composites of Transition Metal Oxides for Long-Term Stability and High Energy Density in Storage Devices DOI Creative Commons

Nabillah Fa’diyyah Zahra,

Muhammad Shahbaz, Mohsin Saleem

et al.

Materials Today Sustainability, Journal Year: 2025, Volume and Issue: unknown, P. 101099 - 101099

Published: March 1, 2025

Language: Английский

Citations

0
Designing an Exfoliated Hexagonal Boron Nitride Nanosheets Embellished on Spherical ZnS as an Efficient Electrode for Hybrid Supercapacitor Applications DOI
D. Krishnamoorthy, Abhishek Kumar Singh

Energy Technology, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 27, 2025

Supercapacitors have evolved into a viable solution for confronting issues of energy demand modern technological world, but its most significant challenge is the construction novel electrode devices with long‐term accumulation. In this current work, exfoliated h‐BN‐ZnS nanocomposites been efficiently synthesized through an ultrasonication technique. The characterizations Raman, X‐ray diffraction, and photoelectron spectroscopy studies ensure successful preparation nanocomposites. Further, morphology visualized by field emission scanning electron microscopy high‐resolution transmission microscopy, displaying h‐BN nanosheets embellished over surface spherical‐shaped ZnS particles. electrochemical cyclic voltammetry, impedance spectroscopy, galvanostatic charge discharge tested in which NCs working reveals maximum specific capacity 919.09 C g −1 at 10 mV s . A hybrid supercapacitor device constructed assembling activated carbon as positive negative electrode, providing excellent 273.54 1 , achieving good density 64.20 Wh kg corresponding power 844.92 W showing 94.5% superior retention 5000 cycles respectively.

Language: Английский

Citations

0
Insights into carbon dots and conventional semiconductors hybrids: A trendsetter in photocatalytic hydrogen generation DOI Creative Commons
Arun Annamalai, Sambasivam Sangaraju,

Sundaravadivel Elumalai

et al.

Coordination Chemistry Reviews, Journal Year: 2025, Volume and Issue: 535, P. 216646 - 216646

Published: March 26, 2025

Language: Английский

Citations

0
Fractal supported electrochemical analysis of MoO3 decorated AlOOH binary composite for supercapacitor application DOI
Priyanka Maurya, Suneel Kumar Sharma, S. N. Pandey

et al.

Surfaces and Interfaces, Journal Year: 2024, Volume and Issue: 54, P. 105199 - 105199

Published: Sept. 30, 2024

Language: Английский

Citations

1
Magnetic CuFe2O4 Spinel–Polypyrrole Pseudocapacitive Composites for Energy Storage DOI Open Access
Mahmoud Awad, Igor Zhitomirsky

Materials, Journal Year: 2024, Volume and Issue: 17(21), P. 5249 - 5249

Published: Oct. 28, 2024

This investigation focused on the fabrication of ceramic ferrimagnetic CuFe2O4–conductive polypyrrole (PPy) composites for energy storage. CuFe2O4 with a crystal size 20–30 nm and saturation magnetization 31.4 emu g−1 was prepared by hydrothermal synthesis, PPy chemical polymerization. High-active-mass composite electrodes were fabricated storage in supercapacitors operation sodium sulfate electrolyte. The addition to resulted decrease charge transfer resistance an increase capacitance range from 1.20 F cm−2 (31 g−1) 4.52 (117.4 at 1 mV s−1 sweep rate 1.17 (29.9 4.60 (120.1 3 mA current density. showed higher than other magnetic same mass containing potential exhibited improved cyclic stability. behavior influenced properties paramagnetic PPy. valuable combination capacitive enriched materials science novel applications based magnetoelectric magnetocapacitive properties.

Language: Английский

Citations

0