Indications of linearity deviations of steady-state concentration profiles in hydrogen permeation membranes
Indications of linearity deviations of steady-state concentration profiles in hydrogen permeation membranes
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DOI：
10.1016/0360-3199(94)e0048-4
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发表时间：
1995-08
影响因子：
7.2
通讯作者：
X. Tong;F. A. Lewis
中科院分区：
文献类型：
--
作者：
X. Tong;F. A. Lewis
在研究电解产生的氢通过钯和钯合金 Pd77Ag23 膜的渗透过程中，进一步观察到电解中断时的稳态渗透速率加速。这些发现进一步支持了膜厚度上存在非线性稳态氢浓度分布的观点。它们也与某些其他渗透率现象的解释一致，例如“上坡效应”，就渗透间隙自诱导的戈尔斯基效应而言，这可以显着地额外促进菲克浓度梯度考虑。
In the course of studies of permeation of electrolytically generated hydrogen through membranes of palladium and the palladium alloy Pd77Ag23, further observations have been made of steady-state permeation rate accelerations on interruption of electrolysis. These findings further support proposals of the existence of non-linear steady-state hydrogen concentration profiles through the thickness of the membrane. They are also consistent with explanations of certain other permeation rate phenomena, such as “uphill effects”, in terms of Gorsky effects self-induced by permeating interstitials, that can significantly contribute additionally to Fickian concentration gradient considerations.