Investigating H2 and CO2 adsorption in bentonite: acid pretreatment conditions effects
Yazarlar (2)
Ayşe Nisa Bingöl
Yalova Üniversitesi, Türkiye
Yalova Üniversitesi, Türkiye
Doç. Dr. Ezgi BAYRAKDAR ATEŞ Yalova Üniversitesi, Türkiye
| Makale Türü | Özgün Makale (SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale) | ||
| Dergi Adı | APPLIED SURFACE SCIENCE (Q1) | ||
| Dergi ISSN | 0169-4332 Dergi Bilgileri (2025) | ||
| Dergi Tarandığı Indeksler | SCI-Expanded | ||
| Makale Dili | İngilizce | Basım Tarihi | 08-2025 |
| Kabul Tarihi | – | Yayınlanma Tarihi | 01-12-2025 |
| Cilt / Sayı / Sayfa | 714 / 0 / 164396–0 | DOI | 10.1016/j.apsusc.2025.164396 |
| Makale Linki | https://doi.org/10.1016/j.apsusc.2025.164396 | ||
| UAK Araştırma Alanları |
Hidrojen Enerjisi Sistemleri
Enerji Depolama
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| Özet |
| Nowadays, it is important to develop technoeconomically advantageous alternatives for storage in order to facilitate the widespread use and utilization of hydrogen. Although new generation sources come to the forefront in hydrogen production, carbon dioxide (CO2) is released as a result of the fact that the largest production is still made by reforming from natural gas and environmentally friendly alternatives should be developed to eliminate also this. This study aims to compare the chemical structure changes of natural bentonite and pretreated bentonites and their effects on Hydrogen (H-2) and CO2 adsorption. After pretreatment with 0.2 M, 0.5 M and 1 M HCl solutions at 65 degrees C and 85 degrees C temperatures, an increase in BET surface area and surface porosity was observed, while the decrease in the amount of carbonate in natural bentonite indicates the effectiveness of the treatments. In addition, changes in H-2 and CO2 adsorption capacities occurred due to the changes in the amounts of Si and Al and the differences in the morphology of the bentonites according to the changing pretreatment conditions. H-2 adsorption capacities varied between 17.41-51.07 cm(3)/g (0.7767-2.278 mmol/g), while CO2 adsorption reached values of 1.06-2.32 cm(3)/g (0.0473-0.104 mmol/g). |
| Anahtar Kelimeler |
| Acid Pretreatment | Bentonite | CO2 adsorption | H-2 adsorption | H-2 storage | Acid modified clay |
| Atıf Sayıları | |
| Web of Science | 1 |