Morphology Modulation of ZnMn2O4 Nanoparticles Deposited In Situ on Carbon Cloth for Supercapacitors DOI Creative Commons
Changxing Li,

Xuansheng Feng,

Jixue Zhou

et al.

Metals, Journal Year: 2024, Volume and Issue: 14(8), P. 841 - 841

Published: July 23, 2024

As a typical spinel structure material, ZnMn2O4 has been widely researched in the field of electrode materials. However, nanoparticles as materials for supercapacitors have disadvantages low conductivity, inferior structural integrity, and easy aggregation, resulting unsatisfying electrochemical performance. In this work, we use hydrothermal method high-temperature calcination to deposit on carbon cloth explore influence reaction time deposition morphology distribution cloth. The process was analyzed, ZMO-9 deduced be most suitable supercapacitors. A series performance tests show that excellent specific capacitance (specific capacity) (499 F·g−1 (299.4 C·g−1) at current density 1 A·g−1) rate (75% retention 12 A·g−1). assembled asymmetric supercapacitor an energy 46.6 Wh·kg−1 when power is 800.1 W·kg−1. This work provides reference design improvement properties.

Language: Английский

α‐Fe2O3 Nanocubes as High‐Performance Anode for Supercapacitor DOI Open Access

Umisha Singh,

Manoj Kumar Patra, Amit K. Chakraborty

et al.

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

Published: Jan. 5, 2025

Abstract The ability to store charge through both Faradaic and non‐Faradaic mechanisms in transition metal oxide‐based nanomaterials have made them a popular choice for use as electrode materials energy storage devices. Of these nanostructured iron oxides, especially Fe 2 O 3, forms one of the most preferred choices material supercapacitor anode due low cost, non‐toxicity, high abundance availability variable oxidation states. In this study, synthesis 3 nanocubes is presented via hydrothermal method using mixed solvent system. annealed α‐Fe show superior specific capacitance 908 F g −1 compared 796 prepared samples at current density 2A , capacity can be ascribed exposure active sites storage, transfer resistance (Rct) reversible electrochemical reactions involving 2+ /Fe 3+ ions. Further, assembled two‐electrode asymmetric device //NiO shows 25.31Wh Kg power 759.3 W with retention 70% after 1000 cycles. These findings underscore viability promising development next‐generation supercapacitors, profound implications advancement sustainable solutions.

Language: Английский

Citations

1
Enhanced Electron Conductivity, Stability, and Electrochemical Performance of MXene-Coated Manganese and Iron Oxides as Negative Electrode of Supercapacitors DOI
Moo Young Jung,

Yongsuk Oh,

Seung-Wook Eom

et al.

Electrochimica Acta, Journal Year: 2025, Volume and Issue: 521, P. 145879 - 145879

Published: Feb. 18, 2025

Language: Английский

Citations

1
Unveiling the potential of copper-doped metal oxides: A novel strategy for high-capacity hybrid supercapatteries with enhanced power, energy density, and cycling stability DOI

M. Geerthana,

J. Archana,

E. Senthil Kumar

et al.

International Journal of Hydrogen Energy, Journal Year: 2025, Volume and Issue: 121, P. 228 - 244

Published: March 31, 2025

Language: Английский

Citations

0
Morphology Modulation of ZnMn2O4 Nanoparticles Deposited In Situ on Carbon Cloth for Supercapacitors DOI Creative Commons
Changxing Li,

Xuansheng Feng,

Jixue Zhou

et al.

Metals, Journal Year: 2024, Volume and Issue: 14(8), P. 841 - 841

Published: July 23, 2024

As a typical spinel structure material, ZnMn2O4 has been widely researched in the field of electrode materials. However, nanoparticles as materials for supercapacitors have disadvantages low conductivity, inferior structural integrity, and easy aggregation, resulting unsatisfying electrochemical performance. In this work, we use hydrothermal method high-temperature calcination to deposit on carbon cloth explore influence reaction time deposition morphology distribution cloth. The process was analyzed, ZMO-9 deduced be most suitable supercapacitors. A series performance tests show that excellent specific capacitance (specific capacity) (499 F·g−1 (299.4 C·g−1) at current density 1 A·g−1) rate (75% retention 12 A·g−1). assembled asymmetric supercapacitor an energy 46.6 Wh·kg−1 when power is 800.1 W·kg−1. This work provides reference design improvement properties.

Language: Английский

Citations

0