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Modeling of surface and bulk effects in thin-film Pd cathodes with high proton loading

机译:高质子负载的薄膜钯阴极中表面和体积效应的建模

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Electronic structure modeling is carried out for bulk Pd-H system with implications for certain surface effects and hydrogen transport. The calculation is performed under the framework of density functional theory. The results provide new insight into the charge state of H inside Pd. The H is slightly negatively charged over the composition range studied, and the negative charge around the proton increases with an increasing loading of hydrogen. By studying the behavior of H at the "bridging" site, which is important to surface and transport phenomena, this paper helps to explain why the effective charge observed in H drift experiments is different from the static charge state. (C) 2003 Elsevier Science B.V. All rights reserved. [References: 18]
机译:电子结构建模是针对Pd-H本体系统进行的,涉及某些表面效应和氢的传输。该计算是在密度泛函理论的框架下进行的。结果为Pd中H的电荷状态提供了新的见解。在所研究的组成范围内,H带有轻微的负电荷,并且质子周围的负电荷随着氢负载的增加而增加。通过研究H在“桥接”部位的行为,这对于表面和传输现象很重要,本文有助于解释H漂移实验中观察到的有效电荷为何不同于静电荷状态。 (C)2003 Elsevier Science B.V.保留所有权利。 [参考:18]

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