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Chusnana Insyaf Yogiyanti
Universitas Negeri Malang
Aerospace Engineering Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Environmental Science Languange, Linguistic, Communication & Media Mathematics Physics Social Sciences Other

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Journal : Journal of Engineering and Technological Sciences

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Optimation PAN/TiO2 Nanofiber Membrane as Separator for Symmetric Supercapacitor Nasikhudin, Nasikhudin; Agustina, Silvia Nurlaili; Diantoro, Markus; Yogihati, Chusnana Insjaf; Suryana, Risa; Alias, Yatimah Binti
Journal of Engineering and Technological Sciences Vol. 57 No. 5 (2025): Vol. 57 No. 5 (2025): October
Publisher : Directorate for Research and Community Services, Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/j.eng.technol.sci.2025.57.5.6

Abstract

Supercapacitor is one of the energy storage systems known for their high-power density, long cycle life, and good cycling stability. To improve supercapacitor performance, we used a polymer PAN composite titanium dioxide (TiO2) as the separator material. Nanofiber separator membranes of PAN/TiO₂ with various masses (0, 5, 10, 15, and 20 wt%) were successfully synthesized using the electrospinning technique. The addition of TiO2 for modified fiber, due to its high absorption rate for energy storage, increased electrolyte uptake and optimized supercapacitor performance. The morphology, functional groups, crystallinity, and thermal stability of the membranes were identified using scanning electron microscope (SEM), Fourier transform infra-red (FTIR), x-ray diffraction (XRD), and thermogravimetric analysis (TGA), respectively. It was found that the membrane with 15 wt% TiO2 exhibited a fiber diameter of 224.73 nm, pore size of 138.98 nm, the highest porosity of 66.50%, electrolyte uptake of 240%, and thermal stability up to 282°C, with a remaining mass of 3.94% after being tested at 1000°C. The electrochemical performance of the supercapacitors was measured using galvanostatic charge-discharge (GCD), cyclic voltammetry (CV), and electrochemical impedance spectroscopy (EIS). The membrane containing 15 wt% TiO2 demonstrated optimum ionic conductivity of 4.4 x 10-4 S/cm, gravimetric capacitance of 57.770 F. g-1, and capacitance retention of 94.22% after 1000 test cycles.
Co-Authors Abadi, M. Tommy Hasan Agustina, Silvia Nurlaili Ahmad Zulian Akhmad Al Ittikhad Alias, Yatimah Binti Amania, Sulfa Aries Dewi Andriani Atsnaita Yasrina Dion Bahrudin, Azhar Factirohmani, Angie Safitri Fajrin, Amiya Grace Djan Imani Dyah Aulia Hans Ishmah Luthfiyah Ishmah Luthfiyah Joko Utomo Joko Utomo Khusaini M. Alfian Mizar Markus Diantoro Nadiya Ayu Astarini Nandang Mufti Narariya, Almira Sifak Fauziah Nasikh Nora Anggraini Nur Azizah Nur Azizah Purbo Suwasono Putri, Tiara Zakiyah Ramadhani, I Gusti Ayu Isnaini Fatha Ramadhani Reyza Arief Taqwa, Muhammad Risa Suryana Sefia Kharen Gilar Tiana Sembiring, Rinawati Siti Helmyati Yessi Affriyenni