Nitrogen and sulfur-rich cobalt complex for hybrid supercapacitor applications

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dc.contributor.authorSaeed, Maham
dc.contributor.authorShah, Javed Hussain
dc.contributor.authorSharif, Shahzad
dc.contributor.authorShahbaz, Muhammad
dc.contributor.authorUllah, Ghulam
dc.contributor.authorShahzad, Ayesha
dc.contributor.authorSahin, Zarife Sibel
dc.date.accessioned2026-04-25T14:19:56Z
dc.date.available2026-04-25T14:19:56Z
dc.date.issued2025
dc.departmentSinop Üniversitesi
dc.description.abstractIn the quest for more effective and advanced energy storage devices, an integrated methodology combining both battery and supercapacitor hybrid features is being explored. In this regard, we have developed a cobalt-1,10-phenonthroline complex with 5-sulfoisopthalic acid in the lattice (Co-Phen@SIP) via sonication method. Structural properties were explored by Single-crystal XRD, Elemental analysis, TGA, FTIR, UV Visible and Fluorescence spectroscopy while detailed electrochemical study was carried out via CV, GCD and EIS. Three electrode setup revealed pseudocapacitive properties of Co-Phen@SIP with specific capacity of 157.6 Cg(-1) at 2 A g(-1). Battery-supercapacitor hybrid device showed energy density and power density of 13.03 Wh kg(-1) and 3309 W kg(-1) respectively. The device also exhibited remarkable columbic efficiency of 98.94 % even after 5000 GCD cycles. Theoretical approach based on Dunn's model and power law was also applied to check the capacitivediffusive contributions of three-electrode system and hybrid device. 1, 10-phenonthroline induces structural stability over long cyclability. The introduction of SIP in Co-complex caused charge transfer through pi center dot center dot center dot pi interactions providing porous and robust structure which aided in improved electric conductivity and ionic mobility. This multi-ligand chemistry with the redox active cobalt has achieved superior performance and reversibility in comparison to other traditional complexes. The idea came out to be an effective strategy for advanced hybrid supercapacitors.
dc.description.sponsorshipHigher Education Commission of Pakistan [20-17612/NRPU/R D/HEC/2021, 378/ORIC/24]; King Saud University, Riyadh, Saudi Arabia [ORF-2025-557]
dc.description.sponsorshipWe gratefully acknowledge financial assistance from the Higher Education Commission of Pakistan, HEC-NRPU project no.20-17612/NRPU/R & D/HEC/2021, ORIC project no 378/ORIC/24 and Ongoing Research Funding program, (ORF-2025-557), King Saud University, Riyadh, Saudi Arabia.
dc.identifier.doi10.1016/j.inoche.2025.115487
dc.identifier.issn1387-7003
dc.identifier.issn1879-0259
dc.identifier.orcid0000-0002-5348-5481
dc.identifier.scopus2-s2.0-105015960167
dc.identifier.scopusqualityQ2
dc.identifier.urihttps://doi.org/10.1016/j.inoche.2025.115487
dc.identifier.urihttps://hdl.handle.net/11486/8273
dc.identifier.volume182
dc.identifier.wosWOS:001575541500007
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherElsevier
dc.relation.ispartofInorganic Chemistry Communications
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WOS_20260420
dc.subjectCobalt
dc.subject5-sulfoisopthalic acid sodium salt (SIP)
dc.subject1, 10-phenonthroline
dc.subjectpi center dot center dot center dot pi stacking
dc.subjectHybrid supercapacitors
dc.titleNitrogen and sulfur-rich cobalt complex for hybrid supercapacitor applications
dc.typeArticle

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