Electrochemical Deposition Of Redox Active Hpa-Mcl Onto 3D Nickel Foam For High-Performance Supercapacitor Applications’

Babali Özen L., Muslu Yılmaz E., Al M. B., Eren E., Öksüz A., Turgut Cin G., ...Daha Fazla

III. National I. International Nanotechnology and Polymer Days (UNIPG 2025) , Isparta, Türkiye, 25 - 27 Haziran 2025, ss.19, (Özet Bildiri)

  • Yayın Türü: Bildiri / Özet Bildiri
  • Basıldığı Şehir: Isparta
  • Basıldığı Ülke: Türkiye
  • Sayfa Sayıları: ss.19
  • Akdeniz Üniversitesi Adresli: Evet

Özet

Supercapacitors, also known as electrochemical capacitors, are high-performance energy storage devices characterized by their superior power density, rapid charge–discharge capability, and long cycle life. They are widely utilized in diverse applications such as electric vehicles, regenerative braking systems, portable electronics, uninterruptible power supplies, and grid stabilization. These systems operate based on either electrostatic double-layer capacitance or fast surface redox reactions (pseudocapacitance), and the efficiency of a supercapacitor is strongly influenced by the physicochemical properties of the electrode materials [1]. In this context, 2-(3-chlorophenyl)-3-(4-hydroxyphenyl)acrylonitrile (HPA-mCl), a promising candidate for electrode applications, was successfully synthesized via a microwave-assisted demethylation reaction in accordance with green chemistry principles, offering a sustainable and efficient route for the development of high-performance energy materials.

In this study, the newly synthesized HPA-mCl compound was electrochemically deposited onto nickel foam (NF) via Chronoamperometric Method. The porous and conductive architecture of NF provides an ideal scaffold for uniform film growth and facilitates efficient ion diffusion and charge transfer [2, 3]. The electrochemical behavior of the coated electrodes was evaluated using cyclic voltammetry (CV), galvanostatic charge-discharge (GCD), and electrochemical impedance spectroscopy (EIS) in a three-electrode system.

The results revealed that the modified electrodes exhibited relatively good specific capacitance and stable cycling performance during continuous operation. These findings suggest that HPA-mCl films electrochemically deposited on conductive three dimension (3D) substrates such as nickel foam have promising potential as next-generation electrode materials for high-performance supercapacitor applications.