Impact of Li addition in Al-rich alloys on hydrogen production in water
He, Tiantian; Xiong, Yi; Du, Sanming; Yuan, Zhenjun; Liang, Xinyu; Huttula, Marko; Cao, Wei (2019-04-10)
He, T., Xiong, Y., Du, S. et al. Impact of Li Addition in Al-Rich Alloys on Hydrogen Production in Water. J. of Materi Eng and Perform 28, 2459–2464 (2019). https://doi.org/10.1007/s11665-019-04019-w
© ASM International. This is a post-peer-review, pre-copyedit version of an article published in J. of Materi Eng and Perform. The final authenticated version is available online at https://doi.org/10.1007/s11665-019-04019-w.
https://rightsstatements.org/vocab/InC/1.0/
https://urn.fi/URN:NBN:fi-fe2020060841044
Tiivistelmä
Abstract
In this study, three types of aluminum alloys (Al-Li, Al-Ga-In-Sn and Al-Li-Ga-In-Sn alloys) were prepared via vacuum arc melting technology. The microstructures of the alloys were examined by x-ray diffraction (XRD), scanning electron microscopy (SEM) and energy-dispersive spectroscopy (EDX). The water discharge method was used to evaluate the water–aluminum reaction. The results show that the Al-Li alloy is inert in aqueous ambience, whereas the Al-Ga-In-Sn alloy and Al-Li-Ga-In-Sn alloy rapidly react with water. Meanwhile, the Li addition hinders the aluminum–water reaction mainly due to the formation of AlLi and Li₅Sn₂ intermetallic compounds, which causes a lower H₂ generation rate and a lower H₂ yield of the Al-Li-Ga-In-Sn alloy than those of the Al-Ga-In-Sn alloy.
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