کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1273281 | 1497610 | 2010 | 6 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Synchrotron EXAFS and XRD studies of Ti–V–Cr hydrogen absorbing alloy Synchrotron EXAFS and XRD studies of Ti–V–Cr hydrogen absorbing alloy](/preview/png/1273281.png)
We reported extended X-ray absorption fine structure (EXAFS) measurements at the Ti, V and Cr K-absorption edges in a Ti–V–Cr alloy before and after hydrogen charging. The results indicated that all the bond lengths increased significantly after hydrogenation, and Ti atoms interacted strongly with V, while V and Cr atoms interacted weakly. The Ti and V atom's coordination numbers in hydrogenated alloy decreased obviously in comparison with the pre-hydrogenation situation. X-ray diffraction (XRD) patterns demonstrated that the structure of Ti–V–Cr alloy had transformed from BCC to FCC during hydrogenation. In addition, we investigated the nanoparticle size distribution in the as-cast and hydrogenated Ti–V–Cr alloy by small-angle X-ray scattering (SAXS) technique.
Journal: International Journal of Hydrogen Energy - Volume 35, Issue 7, April 2010, Pages 2915–2920