Study of cyclic performance of V-Ti-Cr alloys employed for hydrogen compressor

作者：Selvaraj Suganthamalar; Jain Ankur; Kumar Sanjay; Zhang Tengfei; Isobe Shigehito; Miyaoka Hiroki; Kojima Yoshitsugu; Ichikawa Takayuki^*

来源：International Journal of Hydrogen Energy, 2018, 43(5): 2881-2889.

DOI：10.1016/j.ijhydene.2017.12.159

• Metal hydride
• Hydrogen compressor
• Hydrogen storage
• BCC alloys

The development of a suitable hydrogen compressor plays one of the key roles to realize the fuel cell vehicle as well as for many other stationary and mobile applications of hydrogen. V-Ti-Cr BCC alloys are considered as promising candidates for effective hydrogen storage. The cyclic durability of hydrogen absorption and desorption is very important for these alloys to be realized as practical options. In connection to this, two alloys of V-Ti-Cr, (1) V40Ti21.5Cr38.5 and (2) V20Ti32Cr48, were selected and their cyclic hydrogen absorption-desorption performance was evaluated up to 100 cycles for temperature and pressure ranges of 20-300 degrees C and 5-20 MPa, respectively. It has been found that the cyclic hydrogen storage capacity continuously decreased for one composition while it was stable after 10 cycles for another composition. This performance difference of the alloys was studied in terms of their structural and microscopic properties and the results are presented in this paper.

• 出版日期2018-2-1