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oai:ebyu-rdlopen.rawdatalibrary.net:ebyu/106262026-10-18T20:41:28Zopenairedrivercom_ebyu_10000col_ebyu_10001

Solvothermal synthesis of ZnV2O6/g-C3N4 composites for high-performance supercapacitorsYaldır, OnurKarabiberoğlu, ŞükriyeKoçak, Çağrı CeylanYavuz, EmreÖzdokur, Kemal VolkanDursun, ZekeryaGraphitic carbon nitride (g-C₃N₄)SupercapacitorZinc vanadate (ZnV₂O₆)Composites materialEnergy applicationsGraphitic carbon nitride (g-C3N4)Graphitic carbon nitridesMixed metal oxidePerformanceSolvothermal synthesisSynthesisedZinc vanadate (ZnV2O6)Zinc vanadatesCarbon carbon compositesComposite materials formed by combining mixed metal oxides and graphitic carbon nitride have gained significant attention in recent years for energy applications. Here, a novel material was obtained by combining ZnV2O6 mixed metal oxide structure synthesized by the solvothermal method with g-C3N4 prepared by pyrolysis. SEM, XPS, XRD, FTIR, and TGA techniques were employed for comprehensive material characterization. The synthesized ZnV2O6/g-C3N4 was then used in supercapacitor studies. The resulting composite material demonstrated a specific capacity of 438 F g−1 at 1.5 A g−1 in 6.0 M KOH solution. After 2500 cycles, it retains 96 % of its capacitance, demonstrating excellent cyclic stability. Furthermore, a symmetric supercapacitor device based on ZnV₂O₆/g-C₃N₄ electrodes was assembled and tested, achieving high capacitance retention over extended charge–discharge cycles. The synergistic effect of g-C3N4, with its large surface area and chemical stability, and ZnV2O6, with its fast electron transfer ability, has resulted in the formation of the composite with enhanced performance. © 2025 Elsevier B.V.Elsevier Ltd2025Articlehttps://rdlopen.rawdatalibrary.net/r/ebyu/10626https://doi.org/10.1016/j.diamond.2025.1125440925-9635enDiamond and Related Materialsinfo:eu-repo/semantics/openAccessinfo:eu-repo/semantics/articlehttps://ebyu-rdlopen.rawdatalibrary.net/tr/items/ebyu/10626