Çan Linyitinden Elektroliz Yöntemi ile Hidrojen Üretiminde Çeşitli Parametrelerin Etkisinin İncelenmesi

Yörük, Özgü; Uysal, Duygu; Doğan, Özkan Murat; Uysal, Bekir Zühtü

doi:10.29109/gujsc.601223

Cited by 4 publications

(4 citation statements)

References 21 publications

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“…Theoretically, at 25 °C, the potential required for water to decompose is 1.23 V, where the evolution of hydrogen gas begins (Yörük et al, 2019). However, a higher potential must be applied because of the over voltages caused by the solution and electrode metal and the internal resistance of the voltage source and the cables used during the experiment.…”

Section: Methodsmentioning

confidence: 99%

Hidrojen Üretimi İçin Geçiş Metali İhtiva Eden Elektrokatalizörlerin Elektrokimyasal Üretimi

Ergen

Nazlıgül²,

Mert

2022

Osmaniye Korkut Ata Üniversitesi Fen Bilimleri Enstitüsü Dergisi

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Energy demand increases with increasing population and industrial developments. Unfortunately, non-renewable sources are used to meet a large portion of the demand. As a result of the negative effects, researchers have begun to investigate renewable sources by working in a variety of fields in order to ensure the energy and humanity's long-term sustainability. Renewable energy sources are very important for the future of the world. In this regard, we can claim that the convenient solution is "hydrogen" which is a promising energy carrier. In this study, alkaline electrolysis system was preferred due to the advantage of being easily integrated with renewable energy sources to meet the power requirements of the system. The platinum (Pt) and stainless steel (SS) electrodes were used as anodes. Graphite (G) and ternary transition metals (nickel, copper, cobalt) modified graphite (G/NiCoCu) electrodes were used as cathode. The modified electrodes were prepared by using a galvanostatic method. The various operation voltages were applied that varied from 2.3V to 3V in order to realize water splitting reaction. The amount of produced hydrogen gas was increased with increasing operation voltage. According to the experimental results, at 3V for 15 minutes of electrolysis time, the produced H 2 gas values were 15 mL, 11.13 mL and 13.12 mL for Pt -G (Cell-1), SS -G (Cell-2) and SS -G/ NiCoCu (Cell-3), respectively.

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Section: Methodsmentioning

confidence: 99%

Hidrojen Üretimi İçin Geçiş Metali İhtiva Eden Elektrokatalizörlerin Elektrokimyasal Üretimi

Ergen

Nazlıgül²,

Mert

2022

Osmaniye Korkut Ata Üniversitesi Fen Bilimleri Enstitüsü Dergisi

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“…The effect of different parameters for hydrogen production by microbial electrolysis method was investigated. For example, factors such as electrode material selection, electrolyte composition, current density and temperature can affect hydrogen production [8]. In addition, the use of catalysts can increase hydrogen production efficiency.…”

Section: Microbial Electrolysismentioning

confidence: 99%

“…In addition, factors such as electrode material selection and electrolyte composition need to be optimized [8].…”

Section: Microbial Electrolysismentioning

confidence: 99%

“…These organic substances are broken down by microorganisms during the fermentation process and contribute to the production of hydrogen gas. Biological hydrogen production has an important potential among renewable energy sources [8][9][10][11]. Hydrogen gas is used in many applications due to its high energy content and environmental friendliness.…”

Section: Introductionmentioning

confidence: 99%

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Biological Hydrogen Production from Urban and Industrial Wastewater

ATEŞ,

ATEŞ

2023

ICAENS

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Biological hydrogen production is a process in which microorganisms convert organic matter into hydrogen gas. This renewable energy production method is of great interest as an environmentally friendly and sustainable energy source. Biological hydrogen production can be accomplished using different methods. The dark fermentation method is a process in which organic substances are converted into hydrogen gas by microorganisms in anaerobic (oxygen-free) environments. In this method, organic materials are subjected to the fermentation process and hydrogen gas is released. This process also offers a solution for waste management. Photo fermentation is a process in which photosynthetic organisms convert organic materials into hydrogen gas using light energy. The light is absorbed by the photosynthetic pigments and provides the necessary energy for hydrogen gas production. In this method, clean hydrogen gas can be produced using solar energy. Biological hydrogen production methods have several advantages. These include the use of renewable resources, low greenhouse gas emissions, waste management and low energy consumption. However, there are also some disadvantages depending on the methods, for example limited light access or the difficulty of obtaining the purity of hydrogen gas. Biological hydrogen production is a promising method to meet clean and sustainable energy needs. Continuous research and development studies continue to increase the efficiency of these methods and eliminate their disadvantages. In the future, with the more widespread use of biological hydrogen production methods, the diversity of clean energy sources will increase and environmental sustainability will be ensured.

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Novel Fluoroboric Acid Additive for Blend Membrane to be Used in PEM Fuel Cell, Characterization Studies, and Performance Test

Yagizatli,

2024

J Polym Environ

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This study focuses on developing an alternative membrane for PEMFC due to the disadvantages of using Nafion. Fluoroboric acid (FBA) was used as an additive material to SPEEK-PVA blend membranes at different weight ratios (1%, 5%, 7.5%, 10%, and 12.5%), and a synthesis procedure was carried out with the solution-casting. Thermal crosslinking was performed with all membranes. Utilizing FBA, with its highly electronegative fluorine groups, is a novel approach expected to enhance proton conductivity. The structural, morphological, and thermal properties of the synthesized membranes were determined by FTIR, XRD, SEM, TGA-DTG, and DSC. Water uptake capacity (WUC), swelling property, area change, dynamic mechanical analysis, ion exchange capacity (IEC), AC impedance analysis, hydrolytic stability, and oxidative stability analyses were performed for fuel cell applications. Although FBA does not have a crystal structure, the synergy it created with the SPEEK-PVA membrane increased the crystallinity of the membrane and, accordingly, glass transition temperature. SEM images of membranes at a ratio above 7.5% show that agglomerations occur in the structure and this is supported by other analyses. It was determined that the membrane composition with the highest WUC (16.44%), IEC (1.55 meq/g), and proton conductivity (0.57 S/cm) values contained 7.5% FBA from the characterization studies, and a single-cell performance test was actualized with this. 418 mA/cm2 current density and 250.8 mW/cm2 power density were obtained at 0.6 V cell potential, with the membrane containing 7.5% FBA. This study shows that the synthesized membrane, especially the FBA, is a promising option for PEMFC application. Graphical Abstract

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Çan Linyitinden Elektroliz Yöntemi ile Hidrojen Üretiminde Çeşitli Parametrelerin Etkisinin İncelenmesi

Cited by 4 publications

References 21 publications

Hidrojen Üretimi İçin Geçiş Metali İhtiva Eden Elektrokatalizörlerin Elektrokimyasal Üretimi

Hidrojen Üretimi İçin Geçiş Metali İhtiva Eden Elektrokatalizörlerin Elektrokimyasal Üretimi

Biological Hydrogen Production from Urban and Industrial Wastewater

Novel Fluoroboric Acid Additive for Blend Membrane to be Used in PEM Fuel Cell, Characterization Studies, and Performance Test

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