| Yazarlar |
Gökhan Sürücü
Kırşehir Ahi Evran Üniversitesi, Türkiye |
Doç. Dr. Abdullah CANDAN
Kırşehir Ahi Evran Üniversitesi, Türkiye |
|
Ayşenur Gencer
Karamanoğlu Mehmetbey Üniversitesi, Türkiye |
|
Mehmet Işık
Atılım Üniversitesi, Türkiye |
| Özet |
| In the present study, NaXH3 (X = Mn, Fe, Co) perovskite type hydrides have been investigated by performing first-principles calculation. The results of the structural optimizations show that all these compounds have negative formation energy implying the thermodynamic stability and synthesisability. The mechanical stability of these compounds has been studied with the elastic constants. Moreover, the polycrystalline properties like bulk modulus, Poisson's ratio, etc. have been obtained using calculated elastic constants of interest compounds. The electronic properties have been studied and band structures have been drawn with the corresponding partial density of states. These plots indicated that NaXH3 hydrides show metallic characteristics. The charge transfer characteristics in these compounds have been studied with the Bader partial charge analysis. The phonon dispersion curves and corresponding density of states indicated that NaXH3 compounds are dynamically stable compounds. The investigation on hydrogen storage characteristics of NaXH3 compounds resulted in hydrogen storage capacities of 3.74, 3.70 and 3.57 wt% for X = Mn, Fe and Co, respectively. The present study is the first investigation of NaXH3 perovskite type hydrides as known up to date and may provide remarkable contribution to the future researches in hydrogen storage applications. (C) 2019 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved. |
| Anahtar Kelimeler |
| Hydrogen storage, Perovskite type hydrides, First principle calculation, Band structure, Dynamic stability |
| Makale Türü | Özgün Makale |
| Makale Alt Türü | SSCI, AHCI, SCI, SCI-Exp dergilerinde yayımlanan tam makale |
| Dergi Adı | INTERNATIONAL JOURNAL OF HYDROGEN ENERGY |
| Dergi ISSN | 0360-3199 |
| Dergi Tarandığı Indeksler | SCI-Expanded |
| Dergi Grubu | Q2 |
| Makale Dili | İngilizce |
| Basım Tarihi | 11-2019 |
| Cilt No | 44 |
| Sayı | 57 |
| Sayfalar | 30218 / 30225 |
| Doi Numarası | 10.1016/j.ijhydene.2019.09.201 |
| Makale Linki | https://linkinghub.elsevier.com/retrieve/pii/S0360319919336493 |
| Atıf Sayıları | |
| SCOPUS | 70 |
| Google Scholar | 76 |
