Effects of volatilization of lithium on hydrogen storage characteristics of Mg–Ni–Li alloy
| Autor: | Te-Hui Tsai, Chih-Ting Wu, Jen-Hao Liu |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
010302 applied physics
Materials science Volatilisation Mechanical Engineering Alloy chemistry.chemical_element 02 engineering and technology engineering.material 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Catalytic effect Hydrogen storage Chemical engineering chemistry Mechanics of Materials 0103 physical sciences engineering General Materials Science Lithium Hydrogen absorption 0210 nano-technology Eutectic system |
| Zdroj: | Journal of Materials Research. 34:3583-3588 |
| ISSN: | 2044-5326 0884-2914 |
| DOI: | 10.1557/jmr.2019.287 |
| Popis: | Lithium was added to the hypereutectic Mg–Ni alloy to investigate the effect of volatilization of Li on the hydrogen storage characteristics of the eutectic Mg–Ni alloy at 300 °C. After fully activated at 300 °C, Li was almost completely volatilized and the structure of Li-containing Mg82Ni18 alloy was converted to the structure of Li-free Mg82Ni18 alloy, but hydrogen absorption capacity significantly decreased. This is because volatilization of Li weakened the bonding between eutectic Mg and Mg2Ni, lowering the catalytic effect of Mg2Ni on Mg. The decrease in hydrogen absorption capacity was more obvious with increasing Li content. In addition, experimental alloy in powder form could increase surface area, causing Li to volatilize at 300 °C. |
| Databáze: | OpenAIRE |
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