Issue 8, 2024, Issue in Progress

In situ polymerization of a melamine-based microsphere into 3D nickel foam for supercapacitors

Abstract

An in situ synthesis approach is used to directly grow a microsphere of melamine-glutaraldehyde (MAGA) polymer over three-dimensional (3D) nickel foam (NF). The materials are used to produce nitrogen-doped carbon (NC) with and without NF. These precursors undergo carbonization at various temperatures, namely 400 °C, 500 °C, and 700 °C. The electrochemical properties of the materials would be significantly improved by directly growing MAGA polymer on the surface of NF. The electrochemical performance of NC/NF-400 was excellent, with a capacitance of 297 F g−1 achieved at a current density of 1 A g−1. The in situ growing approach does not necessitate the use of additional chemical agents, such as binders or conductive compounds when preparing the electrode. In addition, the material exhibits only 10% reduction in capacitance after undergoing 5000 cycles, indicating excellent cycling performance. The outstanding electrochemical performance achieved by using the in situ method of MAGA microsphere polymer on NF may be attributed to the rapid transit of ions to the electrode surfaces, facilitating effortless redox reactions.

Graphical abstract: In situ polymerization of a melamine-based microsphere into 3D nickel foam for supercapacitors

Supplementary files

Article information

Article type
Paper
Submitted
12 Dec 2023
Accepted
29 Jan 2024
First published
13 Feb 2024
This article is Open Access
Creative Commons BY-NC license

RSC Adv., 2024,14, 5566-5576

In situ polymerization of a melamine-based microsphere into 3D nickel foam for supercapacitors

M. Ibrahim, Z. Wen, X. Sun and H. N. Abdelhamid, RSC Adv., 2024, 14, 5566 DOI: 10.1039/D3RA08489B

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