Issue 12, 2024

Facile fabrication of novel efficient NiCo2O4@NiAl-LDH/NF and high electrochemical performance Fe2O3@rGO electrodes for hybrid supercapacitors

Abstract

The study presents a novel ultra-high power density hybrid supercapacitor composed of NiCo2O4@NiAl layered double hydroxide (LDH) nano-tree arrays on nickel foam (NF) serving as the anode and Fe2O3@rGO hollow spherical nanoparticles as the cathode. NiCo2O4@NiAl layered double hydroxide LDH nano-tree arrays (NAs) without a binder were prepared with a hydrothermal method, and hollow spherical Fe2O3@rGO nanoparticles were fabricated by a mixed solvothermal route. The characterization of the NiCo2O4@NiAl-LDH/NF electrode revealed hollow spheroids aggregated by nanoparticles, showcasing a high specific capacity of 1219.2 C g−1 at 1.6 A g−1. The anode exhibited remarkable cycle stability with 99.1% capacitance retention at 10 A g−1 over 2000 cycles. The Fe2O3@rGO cathode displayed an excellent specific capacitance of 1174.2 C g−1 at 1 A g−1. When assembled, the hybrid supercapacitor demonstrated an impressive energy density of 107.3 W h kg−1 and power density of 1008.3 W kg−1, highlighting outstanding cycle features and ultra-energy density. This research introduces a viable strategy for synthesizing and assembling high-performance capacitors, showcasing potential advancements in energy storage technology.

Graphical abstract: Facile fabrication of novel efficient NiCo2O4@NiAl-LDH/NF and high electrochemical performance Fe2O3@rGO electrodes for hybrid supercapacitors

Supplementary files

Article information

Article type
Paper
Submitted
28 Dec 2023
Accepted
13 May 2024
First published
14 May 2024

Sustainable Energy Fuels, 2024,8, 2730-2742

Facile fabrication of novel efficient NiCo2O4@NiAl-LDH/NF and high electrochemical performance Fe2O3@rGO electrodes for hybrid supercapacitors

X. Liu, W. Tan, Z. Jiang, Y. Hao, Y. Wang, J. Ye, Q. Feng, L. Xu and C. Liu, Sustainable Energy Fuels, 2024, 8, 2730 DOI: 10.1039/D3SE01714A

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements