Journal
JOURNAL OF RARE EARTHS
Volume 27, Issue 1, Pages 154-158Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/S1002-0721(08)60211-2
Keywords
hydrogen storage materials; Ti-Cr-V alloys; BCC alloys; rare earths
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Funding
- Hi-Tech Research and Development Program of China [2006AA05Z144]
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Effect of Ce addition on microstructure and hydrogen storage performance of Ti24Cr17.5V50Fe8.5Cex (x=0, 0.5at.%, 0.8at.% and 1.0at.%) alloys was studied by X-ray diffraction, scanning electron microscopy and P-C-isotherm measurements. The results indicated that Ce addition was a useful way to improve the flatness of the plateau and increase hydrogen storage capacity of Ti24Cr17.5V50Fe8.5 alloy. It was indicated that both homogenization of composition and increase of hydrogen diffusion coefficient were the main reasons for improving the hydrogen storage performance of Ti24Cr17.5V50Fe8.5Cex alloys.
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