Pressure-composition isotherms for nanocrystalline palladium hydride
- 25 July 1994
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 73 (4) , 557-560
- https://doi.org/10.1103/physrevlett.73.557
Abstract
We present results from Monte Carlo simulations of the pressure-composition isotherms of nanometer-size palladium clusters under hydrogen loading. In contrast to simulations of bulk samples, the clusters do not show a phase transformation upon hydriding. A study of the hydrogen loading of the clusters shows that they load the surface first and then the interior, with no evidence of a phase transformation. We relate this behavior of our models to the observed narrowing of the plateau (miscibility gap) in the phase boundary of the pressure-composition phase diagram of nanocrystalline palladium.Keywords
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