Pengaruh Material Elektroda dan Variasi Elektrolit terhadap Kinerja Elektrolisis Air pada Arus 10–50 A dalam Sistem Skala Kecil
DOI:
https://doi.org/10.55606/jtmei.v5i2.6062Keywords:
Density, Electrode Material, Electrolyte Conductivity, Electrolyte Variation, Water ElectrolysisAbstract
The growing demand for clean energy sources has driven the development of efficient hydrogen production technologies, one of which is water electrolysis. The performance of electrolysis systems is influenced by various parameters; however, understanding of the dominant factors in small-scale systems remains limited. This study aims to examine the effects of electrolyte type (NaOH, KOH, and NaCl), electrolyte concentration (1N–5N), electrode material (stainless steel 316 and aluminum), and electrode thickness on the performance of water electrolysis under electric current variations of 10–50 A. System performance was evaluated based on the volume of gas produced within a fixed operating time of 5 minutes. The results indicate that increasing electric current consistently enhances the volume of gas generated under all experimental conditions. Nevertheless, differences in system performance are more strongly influenced by electrolyte characteristics than by other parameters. The KOH electrolyte produced the highest gas volume across all current variations, with an increase of approximately ±10–15% compared to NaOH and ±20–30% compared to NaCl. Increasing electrolyte concentration improved performance up to a certain limit before mass transport limitations occurred. Overall, system performance is more strongly governed by electrolyte type and concentration than by electrode characteristics, indicating that electrolyte-based optimization is a more effective approach.
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Dash, S. K., Chakraborty, S., & Elangovan, D. (2023). A Brief Review of Hydrogen Production Methods and Their Challenges. In Energies (Vol. 16, Issue 3, p. 1141). https://doi.org/10.3390/en16031141
Dawood, F., Anda, M., & Shafiullah, G. M. (2020). Hydrogen production for energy: An overview. International Journal of Hydrogen Energy, 45(7), 3847–3869. https://doi.org/https://doi.org/10.1016/j.ijhydene.2019.12.059
de Kam, L. B. T., Maier, T. L., & Krischer, K. (2024). Electrolyte effects on the alkaline hydrogen evolution reaction: A mean-field approach. Electrochimica Acta, 497, 144530. https://doi.org/https://doi.org/10.1016/j.electacta.2024.144530
Fattah, I. M. R., Mofijur, M., Kusumo, F., Silitonga, A., Kalam, M., & Mahlia, T. (2025). Advancements in Electrode Development for Water Electrolysis: From Support Electrodes to Self‐Supported Electrodes. Wiley Interdisciplinary Reviews: Energy and Environment, 14. https://doi.org/10.1002/wene.70014
Fayez, N. H. A., Qenawy, M., Mustafa, H. M. M., Shehadeh, M., Taha, M., & Abdelbaky Elbatran, A. H. (2026). Optimization of a wet-cell electrolyzer for efficient oxyhydrogen (HHO) gas production: a step towards sustainable green energy solutions. Scientific Reports, 16(1), 12374. https://doi.org/10.1038/s41598-026-45418-z
Ishaq, H., & Dincer, I. (2021). Comparative assessment of renewable energy-based hydrogen production methods. Renewable and Sustainable Energy Reviews, 135, 110192. https://doi.org/https://doi.org/10.1016/j.rser.2020.110192
Ishaq, H., Dincer, I., & Crawford, C. (2022). A review on hydrogen production and utilization: Challenges and opportunities. International Journal of Hydrogen Energy, 47(62), 26238–26264. https://doi.org/https://doi.org/10.1016/j.ijhydene.2021.11.149
Kim, J., Seo, J. H., Lee, J. K., Oh, M. H., & Jang, H. W. (2025). Challenges and strategies in catalysts design towards efficient and durable alkaline seawater electrolysis for green hydrogen production. Energy Materials, 5(7), 500076. https://doi.org/10.20517/energymater.2024.220
Okvasari, R., & Ridwan, M. (2024). Tinjauan Efek Variasi Elektolit dan Konsentrasinya dalam Produksi Gas HHO Melalui Metode Elektrolisis. Innovative: Journal Of Social Science Research, 4(2 SE-Articles), 3031–3039. https://doi.org/10.31004/innovative.v4i2.9569
Paulec, T., Tvarožek, J., Resutík, P., Špánik, P., & Praženica, M. (2025). Review of the dynamic response of water electrolyzer. Electrical Engineering, 107(8), 10499–10506. https://doi.org/10.1007/s00202-025-03042-6
Pereira, J., Souza, R., & Moita, A. (2026). A Review of the Ionic Liquids for Hydrogen Production by Electrolysis. In Inventions (Vol. 11, Issue 2, p. 24). https://doi.org/10.3390/inventions11020024
Ridwan, M., Rangkuti, C., & Okvasari, R. (2019). TERHADAP GAS HHO YANG DIHASILKAN PADA ALAT HYDRONIZER. 9–10.
Shiva Kumar, S., & Himabindu, V. (2019). Hydrogen production by PEM water electrolysis – A review. Materials Science for Energy Technologies, 2(3), 442–454. https://doi.org/https://doi.org/10.1016/j.mset.2019.03.002
Sultana, U. K., Fernando, J. F. S., & O’Mullane, A. P. (2020). Transformation of stainless steel 316 into a bifunctional water splitting electrocatalyst tolerant to polarity switching. Sustainable Materials and Technologies, 25, e00177. https://doi.org/https://doi.org/10.1016/j.susmat.2020.e00177
Vedrtnam, A., Kalauni, K., & Pahwa, R. (2025). A review of water electrolysis technologies with insights into optimization and numerical simulations. International Journal of Hydrogen Energy, 140, 694–727. https://doi.org/https://doi.org/10.1016/j.ijhydene.2025.05.295
Wu, L., Xu, Y., Wang, Q., Zou, X., Pan, Z., Leung, M. K. H., & An, L. (2025). Direct seawater electrolysis for green hydrogen production: electrode designs, cell configurations, and system integrations. Energy & Environmental Science, 18(10), 4596–4624. https://doi.org/10.1039/D5EE01093D
Yue, M., Lambert, H., Pahon, E., Roche, R., Jemei, S., & Hissel, D. (2021). Hydrogen energy systems: A critical review of technologies, applications, trends and challenges. Renewable and Sustainable Energy Reviews, 146, 111180. https://doi.org/https://doi.org/10.1016/j.rser.2021.111180
Zhang, Q., Hao, Y., Chen, H., Li, J., Zeng, Y., Xiong, J., Cheng, Y., Ozden, A., Tricoli, A., & Li, F. (2026). Toward Energy-Efficient Alkaline Water Electrolysis: Advances in Mass Transport Optimization and Electrolyzer Design. Advanced Energy Materials, 16(1), e04039. https://doi.org/https://doi.org/10.1002/aenm.202504039
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Copyright (c) 2026 Nadira Ghina Azzahra, Muhammad Ridwan, Lia Nur Octavia, Rudina Okvasari
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