Recent Advances in Graphene‐Based Metal Oxide Composites for Supercapacitors: A Comprehensive Review DOI
Basappa C. Yallur, Madhuri P. Rao, M Harshitha

et al.

Advanced Sustainable Systems, Journal Year: 2025, Volume and Issue: unknown

Published: May 3, 2025

Abstract Graphene‐based metal oxide mixtures have emerged as a promising material suitable for high‐performance supercapacitors because of their unique combination high electrical conductivity, large surface area, and excellent electrochemical stability. Integrating oxides, such Manganise dioxide (MnO 2) , Cobalt (Co 3 O 4 ) Nickel (NiO), Ruthenium (RuO 2 etc., with graphene enhances supercapacitor electrodes, specific capacitance, energy density, cycling This review examines the latest progress in synthesis, characterization, performance optimization graphene‐based composites. Various strategies enhancing properties, like controlling morphology, adjusting loading, optimizing hybridization methods, are discussed. Furthermore, graphene's role electron conduction, increasing stability expanding area charge storage is highlighted. The challenges scaling up these materials also addressed provide insights into future directions to enhance supercapacitors, an emphasis on power long‐term offers comprehensive overview state‐of‐the‐art research graphene‐metal composites, goal steering advancement next‐generation devices.

Language: Английский

Iron Phosphate–Carbon Nanofiber Composite for High-Performance Asymmetric Hybrid Supercapacitors DOI
Vediyappan Thirumal, Bathula Babu, Jin Ho Kim

et al.

Journal of Alloys and Compounds, Journal Year: 2025, Volume and Issue: unknown, P. 179956 - 179956

Published: March 1, 2025

Language: Английский

Citations

0
Unravelling the Role of Synthesis Temperature in δ‐MnO2 Nanosphere Formation for High‐Performance Supercapacitors DOI
Dinesh R. Shinde, Yashwant Pathak, Anil U. Mane

et al.

ChemistrySelect, Journal Year: 2025, Volume and Issue: 10(16)

Published: April 1, 2025

Abstract In the present research work, reported a role of controlled temperature for synthesis 2D layered structure δ‐MnO 2 nanospheres, high capacitance, were synthesized using simple, facile hydrothermal method. The taken as 140, 160, and 180 °C. highest specific capacitance 525.93 F g −1 in 1 m Na SO 4 electrolyte 5 mV s scan rate was observed sample prepared at symmetric supercapacitor device fabricated liquid‐state assembly process, with EIS confirmed low charge transfer resistance excellent cycling stability. From XRD studies, that material is crystalline size increases from 10 to 16 nm increases. FESEM nanosphere like morphology, average grain decreases 700 300 EDAX analysis reveals only contains Mn O there no any impurity present. Advantageously, water contact angle electrode hydrophilic nature. Raman FTIR spectroscopy investigated chemical functional groups . oxidation states are analysed XPS.

Language: Английский

Citations

0
Nitrogen-doped graphene/carbon nanotube hydrogel for high-performance, low-temperature supercapacitor DOI

Shiqi Liang,

Liangkui Sun,

Jing Liao

et al.

Ionics, Journal Year: 2025, Volume and Issue: unknown

Published: April 22, 2025

Language: Английский

Citations

0
Electrochemical capacitive performance of solution-processed αFe2O3-MoSe2 composite in Na2SO3-KOH mixed electrolyte DOI

Yang-Ming Lee,

Mahesh P. Bhat, Hwai‐En Lin

et al.

Journal of Alloys and Compounds, Journal Year: 2025, Volume and Issue: 1027, P. 180670 - 180670

Published: April 28, 2025

Language: Английский

Citations

0
Recent Advances in Graphene‐Based Metal Oxide Composites for Supercapacitors: A Comprehensive Review DOI
Basappa C. Yallur, Madhuri P. Rao, M Harshitha

et al.

Advanced Sustainable Systems, Journal Year: 2025, Volume and Issue: unknown

Published: May 3, 2025

Abstract Graphene‐based metal oxide mixtures have emerged as a promising material suitable for high‐performance supercapacitors because of their unique combination high electrical conductivity, large surface area, and excellent electrochemical stability. Integrating oxides, such Manganise dioxide (MnO 2) , Cobalt (Co 3 O 4 ) Nickel (NiO), Ruthenium (RuO 2 etc., with graphene enhances supercapacitor electrodes, specific capacitance, energy density, cycling This review examines the latest progress in synthesis, characterization, performance optimization graphene‐based composites. Various strategies enhancing properties, like controlling morphology, adjusting loading, optimizing hybridization methods, are discussed. Furthermore, graphene's role electron conduction, increasing stability expanding area charge storage is highlighted. The challenges scaling up these materials also addressed provide insights into future directions to enhance supercapacitors, an emphasis on power long‐term offers comprehensive overview state‐of‐the‐art research graphene‐metal composites, goal steering advancement next‐generation devices.

Language: Английский

Citations

0