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All Journal LONTAR Jurnal Teknik Mesin Undana (LJTMU )
Matheus M Dwinanto
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Mechanical Engineering

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Pengaruh Daya Aktivasi UV-A dan UV-C terhadap Efisiensi Produksi Hidrogen pada Sistem MW-PEC(Multi-Wavelength Photoelectrochemical) Jani F Mandala; Matheus M Dwinanto; Welem F Galla; Muhamad Jafri; Verdy A Koehuan
LONTAR Jurnal Teknik Mesin Undana (LJTMU ) Vol 13 No 02 (2026): Oktober 2026
Publisher : Universitas Nusa Cendana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35508/ljtmu.v13i02.29333

Abstract

Referring to the International Energy Agency and the COP21 targets regarding carbon emission reduction and the depletion of fossil fuel reserves, hydrogen is one of the energy alternatives with high energy density. One of the hydrogen production methods is through water photolysis but is constrained by the high recombination of electrons e- and holes h+. For this reason, research was conducted to test this problem using a Multi-Wavelength Photoelectrochemical (MW-PEC) system that integrates photocatalytic and electrochemical. This study compares hydrogen production through electrolysis, photolysis, and MW-PEC combining both methods. The system works by containing 715 mL with KOH solution and the anode is coated with a composite as conductive. Meanwhile, a buck converter for power controller of UV-A LEDs and electrode plates as well as a blower for solution homogeneity. While at UV-C is constant with a function to conduct \(TiO_{2}\). Test results for 30 minutes, electrolysis produced HHO gas of 1.9 mL at 2.7 Vdc and 3.3 mL at 5 Vdc. For photolysis with 2.7 Vdc and 3.5 Vdc produced 1.5 mL and 1.8 mL. Meanwhile, MW-PEC produced 0.7 mL at 2.7 V and 1.3 mL at 5 V.
Co-Authors Jani F Mandala, Jani F Muhamad Jafri Verdy A Koehuan Welem F Galla