Abstract
In this work, we have investigated the microstructural and hydrogen storage properties of a 60 layer film of Pd(40 nm)/Ti(x nm)/Mg(360 nm)/Ti(x nm) (x = 10, 20, 30, 40, and 50) using an ultra-high vacuum DC magnetron sputtering system. The highest hydrogen absorption capacity of the Pd/Ti/Mg/Ti film was 4.46 wt% for x = 50. The hydrogen absorption rate accelerated remarkably with increased thickness of the Ti layer, from 209 min for x = 10 to 39 min for x = 40 - overall, an increase by a factor of ∼5. These results demonstrate that the Ti layer in the Pd/Ti/Mg/Ti films serves as a blocking layer preventing the formation of Mg Pd intermetallic phases and provides additional diffusion paths for hydrogen atoms, which leads to enhanced hydrogen storage properties.
| Original language | English |
|---|---|
| Pages (from-to) | 203-206 |
| Number of pages | 4 |
| Journal | Journal of Alloys and Compounds |
| Volume | 635 |
| DOIs | |
| Publication status | Published - 2015 Jun 25 |
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All Science Journal Classification (ASJC) codes
- Mechanics of Materials
- Mechanical Engineering
- Metals and Alloys
- Materials Chemistry
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A catalytic effect on hydrogen absorption kinetics in Pd/Ti/Mg/Ti multilayer thin films. / Jung, Hwaebong; Cho, Sungmee; Lee, Wooyoung.
In: Journal of Alloys and Compounds, Vol. 635, 25.06.2015, p. 203-206.Research output: Contribution to journal › Letter
TY - JOUR
T1 - A catalytic effect on hydrogen absorption kinetics in Pd/Ti/Mg/Ti multilayer thin films
AU - Jung, Hwaebong
AU - Cho, Sungmee
AU - Lee, Wooyoung
PY - 2015/6/25
Y1 - 2015/6/25
N2 - In this work, we have investigated the microstructural and hydrogen storage properties of a 60 layer film of Pd(40 nm)/Ti(x nm)/Mg(360 nm)/Ti(x nm) (x = 10, 20, 30, 40, and 50) using an ultra-high vacuum DC magnetron sputtering system. The highest hydrogen absorption capacity of the Pd/Ti/Mg/Ti film was 4.46 wt% for x = 50. The hydrogen absorption rate accelerated remarkably with increased thickness of the Ti layer, from 209 min for x = 10 to 39 min for x = 40 - overall, an increase by a factor of ∼5. These results demonstrate that the Ti layer in the Pd/Ti/Mg/Ti films serves as a blocking layer preventing the formation of Mg Pd intermetallic phases and provides additional diffusion paths for hydrogen atoms, which leads to enhanced hydrogen storage properties.
AB - In this work, we have investigated the microstructural and hydrogen storage properties of a 60 layer film of Pd(40 nm)/Ti(x nm)/Mg(360 nm)/Ti(x nm) (x = 10, 20, 30, 40, and 50) using an ultra-high vacuum DC magnetron sputtering system. The highest hydrogen absorption capacity of the Pd/Ti/Mg/Ti film was 4.46 wt% for x = 50. The hydrogen absorption rate accelerated remarkably with increased thickness of the Ti layer, from 209 min for x = 10 to 39 min for x = 40 - overall, an increase by a factor of ∼5. These results demonstrate that the Ti layer in the Pd/Ti/Mg/Ti films serves as a blocking layer preventing the formation of Mg Pd intermetallic phases and provides additional diffusion paths for hydrogen atoms, which leads to enhanced hydrogen storage properties.
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U2 - 10.1016/j.jallcom.2015.02.080
DO - 10.1016/j.jallcom.2015.02.080
M3 - Letter
VL - 635
SP - 203
EP - 206
JO - Journal of Alloys and Compounds
JF - Journal of Alloys and Compounds
SN - 0925-8388
ER -