Analysis of the Effects of Wet-Cell Electrolysis Variations Using Aluminum and Iron Electrodes on Hydrogen and Oxygen Gas Concentrations
DOI:
https://doi.org/10.26905/jtmt.v22i1.17550Keywords:
Electrolysis, hydrogen gas, wet cell, aluminium electrode, iron electrodeAbstract
This research is motivated by the global energy crisis due to declining fossil fuel reserves, necessitating the development of renewable energy sources (EBT) such as hydrogen gas through water electrolysis. This study aims to analyze the effect of KOH solution concentration variations (1%–5%) combined with natural coconut water electrolyte, and to compare the use of aluminum (Al) and iron (Fe) electrode materials on hydrogen gas production rate in a wet cell system. The method used is quantitative laboratory experimentation with a 15 V DC power supply, 500 mL electrolyte volume, and 60-minute testing duration. Hydrogen and oxygen gas measurement used MQ-8 and MQ-135 sensors based on Arduino Uno in PPM units. Results show that 5% KOH concentration provides the highest gas production rate for both electrode types. The combination of aluminum electrodes with coconut water and 5% KOH achieves a maximum hydrogen gas production of 787.48 ppm, while 1% concentration yields minimum values. Iron electrodes outperform in pure water media (hydrogen 730.82 ppm at 5% KOH), while aluminum electrodes dominate in coconut water media.
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[1] E. L. Dewi, Indonesia Hydrogen Roadmap. IFHE Press, 2023. [Online]. Available: https://ifhe.or.id/wp-content/uploads/2023/06/indonesia-hidrogen-roadmap.pdf
[2] Rauf, Energi Indonesia: Masalah dan Potensi Pembangkit Listrik dalam Mewujudkan Kemandirian Energi. 2023.
[3] D. Zulfany, E. Erlinawati, A. Manggala, and I. Pratiwi, “Produksi gas hidrogen dengan proses elektrolisis air laut ditinjau dari konsentrasi KOH,” J. Redoks, vol. 9, no. 2, pp. 105–113, 2024, doi: 10.31851/redoks.v9i2.15012.
[4] F. Y. Handayani, T. Pangajuanto, and R. Zulhijah, Dasar-Dasar Teknik Kimia Industri. Kementerian Pendidikan, Kebudayaan, Riset, dan Teknologi, 2023.
[5] M. C. Sangian, G. M. C. Mangindaan, and H. F. Sangian, “The production of hydrogen gas employing water,” J. Tek. Elektro dan Komput., vol. 12, no. 1, pp. 61–66, 2023.
[6] I. Musthofa, R. T. Ivana, H. Isworo, A. N. Syaief, R. Syahyuniar, and M. R. F. Putra, “Characteristics of peat water and coconut water molecules in the electrolysis process to produce hydrogen gas,” Logic: J. Ranc. Bangun dan Teknol., vol. 25, no. 2, pp. 78–84, 2025, doi: 10.31940/logic.v25i2.78-84.
[7] N. Suminten, S. Arjo, L. Roza, and A. Fitriana, “Perbandingan konsentrasi larutan garam dan air,” JPF (Jurnal Pendidikan Fisika), vol. 9, no. 2, pp. 164–171, 2021.
[8] M. Chatenet et al., “Water electrolysis: From textbook knowledge to the latest scientific strategies and industrial developments,” Chem. Soc. Rev., vol. 51, no. 11, pp. 4583–4762, 2022, doi: 10.1039/D0CS01079K.
[9] S. Genc, S. Karadeniz, and N. Ayas, “Hydrogen production by alkaline water electrolysis using electrochemically Ni-deposited stainless steel electrodes,” Int. J. Chem. Eng. Appl., vol. 15, no. 1, pp. 1–6, 2024, doi: 10.18178/ijcea.2024.15.1.810.
[10] Y. Wahyono, H. Sutanto, and E. Hidayanto, “Produksi gas hydrogen menggunakan metode elektrolisis dari elektrolit air dan air laut dengan penambahan katalis NaOH,” 2017.
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