Hydrogen and oxygen in-depth evolution during electrochemical hydrogenation/dehydrogenation of Y–Pd thin films analyzed by Glow Discharge Optical Emission Spectroscopy
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- 作者：E. Rayó ; n Encinas ; R. Escobar Galindo ; J.M. Albella Martí ; n ; E. Matveeva
- 关键词：Yttrium hydrides ; Switchable mirrors ; Palladium hydrides ; Electrochemical hydrogenation ; Optical switching ; Radio-frequency glow discharge optical emission spectroscopy ; Depth profiling ; Smart optical windows
- 刊名：Thin Solid Films
- 出版年：2008
- 出版时间：31 July 2008
- 年：2008
- 卷：516
- 期：18
- 页码：6524-6530
- 全文大小：633 K
文摘
Elemental in-depth analysis of the Y–Pd thin film under hydrogenation/dehydrogenation has been performed by Glow Discharge Optical Emission Spectroscopy (GDOES). This technique was able to detect qualitatively the changes in the composition of the layer, particularly the in-depth H and O distribution during hydrogen uptake and release. The charge of the film with hydrogen was done under electrochemically controlled conditions, while the discharge was effectuated in different modes: electrochemically, in alkali electrolyte (forced anodic discharge) or spontaneously, in air ambient or in the electrolyte (open potential circuit discharge).