Synthesis of Iron oxide – Manganese oxide – Carbon composite materials via calcination of ferrocene and potassium permanganate for supercapacitor applications
Issued Date
2026-05-15
Resource Type
ISSN
0167577X
eISSN
18734979
Scopus ID
2-s2.0-105031310508
Journal Title
Materials Letters
Volume
411
Rights Holder(s)
SCOPUS
Bibliographic Citation
Materials Letters Vol.411 (2026)
Suggested Citation
Chumkaeo P., Promcharoen P., Charoenchaidet S., Charoenchaidet S., Somsook E. Synthesis of Iron oxide – Manganese oxide – Carbon composite materials via calcination of ferrocene and potassium permanganate for supercapacitor applications. Materials Letters Vol.411 (2026). doi:10.1016/j.matlet.2026.140311 Retrieved from: https://repository.li.mahidol.ac.th/handle/123456789/115561
Title
Synthesis of Iron oxide – Manganese oxide – Carbon composite materials via calcination of ferrocene and potassium permanganate for supercapacitor applications
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Abstract
A Fe<inf>2</inf>O<inf>3</inf>-MnO<inf>X</inf>-graphene carbon composite was synthesized via a facile calcination route using ferrocene and potassium permanganate as combined metal and carbon precursors, followed by KOH activation. During thermal treatment, the cyclopentadienyl ligands of ferrocene were converted into a graphene-like carbon matrix, while iron and manganese species were simultaneously transformed into Fe<inf>2</inf>O<inf>3</inf> and MnO<inf>X</inf>, respectively. Chemical activation introduced hierarchical porosity and enhanced electrochemical accessibility. The activated composite delivered a specific capacitance of 173.9 F g<sup>−1</sup> at 0.5 A g<sup>−1</sup> and retained 78.5% of its initial capacitance after 2000 charge–discharge cycles at 5 A g<sup>−1</sup>.