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Issue 38, 2015
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Change in the crystalline structure during the phase transition of the palladium–hydrogen system

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Abstract

We performed an X-ray diffraction experiment while a palladium bulk absorbed and desorbed hydrogen to investigate the behavior of the crystalline lattice during the phase transition between the α phase and the β phase. Fast growth of the β phase was observed at around x = 0.1 and x = 0.45 of PdHx, and the phase transition rate has an exponential behavior in between. In addition, slight compression of the lattice at a high hydrogen concentration, an increase in the lattice constant, and broadening of the line width of the α phase after a cycle of absorption and desorption of hydrogen were observed. These behaviors correlated with the change in the sample length, which may infer that the change in shape was related to the phase transition.

Graphical abstract: Change in the crystalline structure during the phase transition of the palladium–hydrogen system

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Article information


Submitted
12 May 2015
Accepted
14 Aug 2015
First published
07 Sep 2015

Phys. Chem. Chem. Phys., 2015,17, 24783-24790
Article type
Paper

Change in the crystalline structure during the phase transition of the palladium–hydrogen system

A. Kawasaki, S. Itoh, K. Shima, K. Kato, H. Ohashi, T. Ishikawa and T. Yamazaki, Phys. Chem. Chem. Phys., 2015, 17, 24783
DOI: 10.1039/C5CP02725J

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