Temperature dependence of the chemical potential of hydrogen in the two-phase coexistence region of the palladium–hydrogen system
Temperature dependence of the chemical potential of hydrogen in the two-phase coexistence region of the palladium–hydrogen system
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钯-氢体系两相共存区域氢化学势的温度依赖性
DOI：
10.1039/f19858102921
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发表时间：
1985
期刊：
影响因子：
--
通讯作者：
T. Flanagan
中科院分区：
文献类型：
--
作者：
T. Kuji;T. Flanagan
在气相和固相之间基本上没有氢转移的条件下，已检查了钯-氢共存的稀 α 相和氢化物 α′ 相中氢的化学势随温度的变化。 ΔμH 的行为受温度变化后两个共存相之间氢的重新分布的影响。如果两相的化学势不能通过磁滞间隙内的氢转移而变得相等，则氢化物相必须形成或分解。这决定了系统是否最终位于滞后间隙内或位于一个或另一个平台分支上。该模型是通过数学方法开发的，并通过钯-氢系统的实验结果得到证实。
The chemical potential of hydrogen in the coexisting dilute α and hydride α′ phases of palladium–hydrogen has been examined as a function of temperature under conditions where there is essentially no hydrogen transferred between the gaseous and solid phases. The behaviour of ΔµH is governed by the redistribution of hydrogen between the two coexisting phases following the temperature change. If the chemical potentials of the two phases cannot become equal by transfer of hydrogen within the hysteresis gap, then the hydride phase must either form or decompose. This determines whether the system ends up within the hysteresis gap or on one or other of the plateau branches. This model is developed mathematically and confirmed by experimental results for the palladium–hydrogen system.