Research Information System
Thesis Type: Postgraduate
Institution Of The Thesis: Gazi University, Fen Bilimleri Enstitüsü, Turkey
Approval Date: 2022
Thesis Language: Turkish
Student: Sırmanur GÜZELER
Supervisor: Duygu Uysal
Abstract:
A significant part of the energy need in the world due to industrialization and increasing population is met from fossil resources. Studies on renewable energy have gained importance in recent years as the reserves of fossil resources are limited and the combustion products resulting from their burning cause serious environmental problems. Hydrogen is accepted as the energy carrier of the future and is preferred due to its renewable nature and low emission value. Hydrogen, which is not found in pure form in nature, can be obtained by electrolysis of water or by various methods (gasification, reforming, etc.) from fossil fuels. High purity hydrogen can be produced by electrolysis of water, which is one of the hydrogen production methods, but a high amount of energy is required for the process. In order to produce hydrogen using less energy, the use of different sources in the electrolysis method has gained importance. In addition, the amount of energy required and the cost of electrolysis can be reduced by using electrode materials and electrolyte solutions with high electrocatalytic activity. In this study, it is aimed to produce hydrogen by electrolysis of black water and humic acid. In experimental studies, sulfuric acid, hydrochloric acid, phosphoric acid, oxalic acid and acetic acid solutions were used as electrolyte solutions, and platinum/palladium, zinc/zinc and copper/copper electrode pairs were used as electrode materials. Since the positive effect of iron ions on the obtained current values is known, iron (II) solution was added to the solution in all experiments. Experimental studies were carried out at 25°C, 60°C, 70°C and 80°C. The effects of temperature, electrolyte solution and electrode material parameters on hydrogen production by black water and humic acid electrolysis method were investigated and it was observed that the best results were obtained at 80 °C with sulfuric acid electrolyte solution and zinc/zinc electrode pair.
| Key Words : Hydrogen, black water, humic acid, electrolysis |