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All Journal Indonesian Journal of Chemical Analysis (IJCA) Jurnal Inovasi Teknik Kimia
Iskandar, Riska Listiarini
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Chemical Engineering, Chemistry & Bioengineering Chemistry Environmental Science

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Synthesis of Acrylonitrile Butadiene Styrene Membrane with Sulfonated Reduced Graphene Oxide and Cerium Filler Siswantito, Firgi; Dampang, Sarah; Perdani, Meka Saima; Hakim, Muhammad Fahmi; Iskandar, Riska Listiarini
Indonesian Journal of Chemical Analysis (IJCA) Vol. 8 No. 2 (2025): Indonesian Journal of Chemical Analysis
Publisher : Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/ijca.vol8.iss2.art1

Abstract

The study investigates the use of acrylonitrile butadiene styrene (ABS) polymer modified by sulfonated reduced graphene oxide (s-rGO) and cerium (Ce) as an alternative membrane to Nafion for Direct Methanol Fuel Cell (DMFC) applications. Pure ABS membranes and ABS membranes with s-rGO/Ce fillers were synthesized and characterized, with sulfonation at 60 °C using filler concentrations of 1%, 3%, and 5% v/v. The addition of fillers aimed to enhance ion exchange capacity (IEC), water absorption, and reduce methanol permeability. The membrane with 5% filler content showed optimal performance, with an IEC of 0.35 meq/g, a swelling degree of 1.5%, and controlled methanol permeability of 1.2670 × 10⁻⁷ cm²/s. FTIR analysis confirmed the presence of sulfonate groups (S=O) at 1054 cm⁻¹, indicating successful sulfonation. SEM analysis revealed that the filler was well-dispersed and formed more defined pores without compromising the structural integrity of the ABS matrix. This study demonstrates the potential of s-rGO/Ce-modified ABS membranes as a viable alternative to Nafion membranes in DMFC applications.
SINTESIS MEMBRAN AKRILONITRIL BUTADIENA STIRENA TERMODIFIKASI FILLER SULFONASI GRAFENA OKSIDA TEREDUKSI DAN CERIUM OKSIDA Iskandar, Riska Listiarini; Dampang, Sarah; Hakim, Muhammad Fahmi; Perdani, Meka Saima; Siswantito, Firgi; Widianto, Eri; Fauji, Najmudin
Jurnal Inovasi Teknik Kimia Vol. 10 No. 4 (2025): October| INTEKA - Jurnal Inovasi Teknik Kimia
Publisher : Fakultas Teknik Universitas Wahid Hasyim

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31942/inteka.v10i4.13450

Abstract

The utilization of Acrylonitrile Butadiene Styrene (ABS) polymer as an alternative membrane for Direct Methanol Fuel Cell (DMFC) applications has been investigated. This study aims to evaluate the effect of sulfonation temperature on the performance of ABS membranes modified with reduced graphene oxide/cerium oxide (s-rGO/CeO₂). The membranes were synthesized via sulfonation at 65 °C, 75 °C, and 85 °C, with a filler composition of 3% v/v. The results indicate that the addition of filler significantly increases the Ion Exchange Capacity (IEC), with the highest value of 0.375 meq/g obtained at a sulfonation temperature of 85 °C, while methanol permeability was optimally reduced at 65 °C (1.26684 × 10⁻⁷ cm²/s). FTIR analysis confirms successful sulfonation, as evidenced by the appearance of sulfonate (S=O) absorption peaks at 1054 cm⁻¹ and carbonyl (C=O) peaks at 1734 cm⁻¹, indicating interactions between the filler and the ABS matrix. The increased polarity and hydrophilicity of the membrane resulting from filler incorporation demonstrate that filler-modified ABS membranes have strong potential as alternative membranes for DMFC applications.
Co-Authors Dampang, Sarah Hakim, Muhammad Fahmi Najmudin Fauji Perdani, Meka Saima Siswantito, Firgi Widianto, Eri