钯
氢气储存
氢
重量分析
合金
材料科学
电阻率和电导率
吸收(声学)
薄膜
分析化学(期刊)
化学工程
冶金
催化作用
复合材料
纳米技术
化学
有机化学
工程类
电气工程
作者
Sudhansu Sekhar Das,G. Kopnov,A. Gerber
出处
期刊:Materials
[MDPI AG]
日期:2021-12-24
卷期号:15 (1): 111-111
摘要
Palladium satisfies most of the requirements for an effective hydrogen storage material with two major drawbacks: it has a relatively low gravimetric hydrogen density and is prohibitively expensive for large scale applications. Pd-based alloys should be considered as possible alternatives to a pure Pd. The question is how much one can dilute the Pd concentration in a variety of candidate materials while preserving the hydrogen absorption capability. We demonstrate that the resistivity measurements of thin film alloy samples can be used for a qualitative high-throughput screening and study of the hydrogen absorbing properties over the entire range of palladium concentrations. Contrary to palladium-rich alloys where additional hydrogen scattering indicates a degree of hydrogen content, the diluted alloy films respond by a decrease in resistance due to their thickness expansion. Evidence of significant hydrogen absorption was found in thin CoPd films diluted to just 20% of Pd.
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