Optimizing hydrogen gas concentration using response surface methodology (RSM) with design expert 6.0.9 application

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Rahadian Zainul, Efran Ustia Rahmad, Rida Oppi Ramadhani, Muhammad Shakeel Ahmad, Yohandri, Amalia Putri Lubis, Ganefri

2023 IOP Conference Series: Earth and Environmental Science Vol. 1281 Issue 1 Conference paper Cited by 1 Quartile

Abstract

The MQ-8 sensor will be used in this investigation to estimate the maximum hydrogen gas concentration generated during the dry cell generators' electrolysis procedure. The process of water electrolysis involves breaking down the water molecule H2O using direct electric current, into hydrogen gas and oxygen gas. Utilizing DC generators with 4/4 plate electodes (Cu/Al) as the cathodes and NaNO3 solutions as the electrolytes, hydrogen gas production by electrolysis is achieved. 0.6 amps and 2 volts are employed in this electrolysis procedure for a duration of 1 hour. The ideal conditions for hydrogen gas concentration are NaNO3 1 M concentration and 60 minutes with a maximum hydrogen concentration of 143.393 ppm generated. The hydrogen gas concentration verification result value is 144 ppm. © 2023 Institute of Physics Publishing. All rights reserved.

Affiliations

Department of Chemistry, Faculty of Mathematics and Natural Science, Universitas Negeri Padang, Indonesia; Higher Institution Centre of Excellence (HICoE), UM Power Energy Dedicated Advanced Centre (UMPEDAC), Wisma R&D, University of Malaya, Level 4, Malaysia; Department of Physics, Faculty of Mathematics and Natural Science, Universitas Negeri Padang, Indonesia; Department of Educational Chemistry, Faculty of Mathematics and Natural Science, Universitas Negeri Padang, Indonesia; Department of Electrical Engineering, Faculty of Engineering, Universitas Negeri Padang, Indonesia