Optimation PAN/TiO2 Nanofiber Membrane as Separator for Symmetric Supercapacitor

Nasikhudin Nasikhudin; Silvia Nurlaili Agustina; Markus Diantoro; Chusnana Insjaf Yogihati; Risa Suryana; Yatimah Binti Alias

doi:10.5614/j.eng.technol.sci.2025.57.5.6

Optimation PAN/TiO2 Nanofiber Membrane as Separator for Symmetric Supercapacitor

Published: 2025-01-01 | DOI: 10.5614/j.eng.technol.sci.2025.57.5.6 | Vol 57, Issue 5 (2025)

Authors

Nasikhudin Nasikhudin

Department of Physics, Faculty of Mathematics and Natural Science, State University of Malang, Jalan Semarang No. 5 Malang, 65145

ORCID: 0000-0001-6888-4365 · OpenAlex: A5045859367

Silvia Nurlaili Agustina

Department of Physics, Faculty of Mathematics and Natural Science, State University of Malang, Jalan Semarang No. 5 Malang, 65145

Markus Diantoro

Center of Advanced Materials for Renewable Energy, CAMRY, State University of Malang, Jalan Semarang No.5 Malang 65145

ORCID: 0000-0001-6666-3702 · OpenAlex: A5056074820

Chusnana Insjaf Yogihati

Department of Physics, Faculty of Mathematics and Natural Science, State University of Malang, Jalan Semarang No. 5 Malang, 65145

ORCID: 0000-0002-0066-3918 · OpenAlex: A5079788669

Risa Suryana

Department of Physics, Faculty of Mathematics and Natural Science, Sebelas Maret University, Jalan Ir. Sutami No.36 Surakarta, 57126,

ORCID: 0000-0002-8754-6019 · OpenAlex: A5043786958

Yatimah Binti Alias

Department of Chemistry, Faculty of Science. University of Malaya, Lembah Pantai, Wilayah Persekutuan, 50603,

ORCID: 0000-0002-4003-3822 · OpenAlex: A5073906019

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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.

Keywords

membrane; nanofiber; PAN/TiO2; separator; symmetric supercapacitor

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Topics

Supercapacitor Materials and Fabrication Primary

1.00

Electronic, Optical and Magnetic Materials › Materials Science › Physical Sciences

Electrospun Nanofibers in Biomedical Applications

0.97

Biodiesel Production and Applications

0.95

Semantic Profile AI-classified research signals

Core Domains

Materials science 0.82

level 0

Thermogravimetric analysis 0.68

level 2

Separator (oil production) 0.66

level 2

Secondary Topics

Chemical engineering 0.56 Membrane 0.56 Scanning electron microscope 0.55 Thermal stability 0.53 Nanofiber 0.51 Fourier transform infrared spectroscopy 0.40 Gravimetric analysis 0.33 Porosity 0.29 Composite material 0.27 Titanium dioxide 0.26 Analytical Chemistry (journal) 0.25

Institution Network

State University of Malang ID
Nasikhudin Nasikhudin · Silvia Nurlaili Agustina · Markus Diantoro · Chusnana Insjaf Yogihati
Sebelas Maret University ID
Risa Suryana
WiLAN (Canada) CA
Yatimah Alias

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