Multi-phase structure electrospun CNF@Ag/Mn/Bi/Fe composite nanofiber enhanced supercapacitor behavior

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dc.contributor.authorSinprachim, Tanayt
dc.contributor.authorKlompong, Narit
dc.contributor.authorChanlek, Narong
dc.contributor.authorKidkhunthod, Pinit
dc.contributor.authorMaensiri, Santi
dc.contributor.authorSiripongdee, Surapong
dc.contributor.authorChamsuk, Wawmayura
dc.contributor.authorOhgoe, Yasuharu
dc.contributor.authorThonglor, Panakamon
dc.contributor.authorAlbutt, Naphat
dc.contributor.authorSonsupap, Somchai
dc.date.accessioned2026-08-06T10:50:32Z
dc.date.available2026-08-06T10:50:32Z
dc.date.issued2025-02-15
dc.description.abstractThis study presents the development of carbon-based multiphase metal oxide nanocomposites (CNF@MO<inf>x</inf>; M = Ag, Mn, Bi, and Fe) incorporating silver, manganese, bismuth, and iron nanoparticles within polyacrylonitrile (PAN)-derived carbon nanofibers. These nanocomposites were fabricated via the electrospinning technique with metal oxide concentrations of 10, 20, and 40 %w. This was followed by annealing in an argon atmosphere. The resulting nanofibers exhibited diameters ranging from 559 to 830 nm, with embedded nanoparticles measuring from 9 to 21 nm. Comprehensive characterization revealed that the nanofibers possessed uniform morphology, high porosity, and robust thermal stability. X-ray photoelectron spectroscopy (XPS) and X-ray absorption spectroscopy (XAS) confirmed the valence states of the metal oxides (Ag⁰, Bi³⁺, Mn²⁺, Mn³⁺, Fe²⁺, and Fe³⁺), which are integral to redox reactions and charge storage mechanisms. Among the fabricated composites, CNF@Ag/Mn/Bi/Fe-20 demonstrated the best electrochemical performance, achieving a specific capacitance of 156 F g<sup>−1</sup> at a scan rate of 2 mV s<sup>−1</sup> and outstanding cycling stability with a capacity retention of over 96 % after 1400 charge-discharge cycles. The synergistic combination of double-layer capacitance and pseudocapacitance mechanisms in these nanofibers represents a significant improvement over conventional electrode material. This study highlights CNF@Ag/Mn/Bi/Fe nanocomposites as highly promising candidates for advanced energy storage applications, particularly in supercapacitor technologies.
dc.identifier.citationJournal of Alloys and Compounds, 1016, 2025
dc.identifier.doi10.1016/j.jallcom.2025.178922
dc.identifier.issn09258388
dc.identifier.other2-s2.0-85216611554
dc.identifier.urihttps://dspace.kmitl.ac.th/handle/123456789/16810
dc.sourceJournal of Alloys and Compounds
dc.subjectElectrospinning
dc.subjectIron oxide
dc.subjectManganese oxide
dc.subjectMultiphase carbon-based nanofibers
dc.subjectSilver
dc.subjectSupercapacitor
dc.titleMulti-phase structure electrospun CNF@Ag/Mn/Bi/Fe composite nanofiber enhanced supercapacitor behavior
dc.typeArticle

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