Lithium Hydroxide, LiOH, at Elevated Densities

February 9, 2021 Jeremiah Hendren

Lithium Hydroxide, LiOH, at Elevated Densities

Hermann, Andreas, Neil W. Ashcroft, and Roald Hoffmann
The Journal of Chemical Physics 141, no. 2 (2014): 024505
https://doi.org/10.1063/1.4886335

Another motivation of this work comes from our recent studies of the high-pressure phases of water ice, where we asked what pressure would be needed to metallize H2O. As it turned out, the metallization pressure of ice is very likely to be high, around 5TPa, and thus larger than the pressures found even in the core of Jupiter. One might ask, however, if metallization of ice could be induced at lower pressure by addition or substitution of an electropositive element, such as an alkali or alkaline earth metal—as is predicted, for example, for hydrogen, where metallic polyhydride phases are proposed to be stabilized under pressure. Here we study partial substitution of lithium in H2O, which naturally leads one to both anhydrous LiOH (replacing every second H by Li), and the monohydrate LiOH+H2O (replacing every fourth H by Li).

Andreas Hermann et al.

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