Spectroscopic study of low-temperature hydrogen absorption in palladium
Spectroscopic study of low-temperature hydrogen absorption in palladium
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钯低温吸氢的光谱研究
DOI：
10.1063/1.4905729
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发表时间：
2015
影响因子：
4
通讯作者：
and T. Kawae
中科院分区：
文献类型：
--
作者：
K. Ienaga;H. Takata;Y. Onishi;Y. Inagaki;H. Tsujii;T. Kimura;and T. Kawae
采用振动丝法研究了钯的吸放氢性能。在室温下，成功地观察到VW谱在H2气体暴露下的共振频率的相当大的移动。该偏移在曝光的初始阶段是可逆的，并且归因于VW传感器的密度和杨氏模量的变化。在足够的暴露时间后，检测到由于脆化引起的偏移的不可逆性。H的吸收大大减慢，在T= 200 K，由于抑制的热激活过程。
A vibrating wire (VW) method was applied to investigate the hydrogen absorption and desorption properties of palladium. At room temperature, a considerable shift in resonance frequency was successfully observed in VW spectra under H 2 gas exposure. The shift is reversible in the initial stage of the exposure and is attributed to changes in the density and Young's modulus of the VW sensor. Irreversibility of the shift because of embrittlement is detected after a sufficient exposure time. H absorption is slowed down enormously at T= 200 K owing to suppression of the thermal activation process.