Research Article
Effects of Magnesium Content on Structure and Electrochemical Properties of La-Mg-Pr-Al-Mn-Co-Ni Hydrogen Storage Alloys
Table 2
Composition determined using EDX at the centers of the M phase in the as-cast La0.7−xMgxPr0.3Al0.3Mn0.4Co0.5Ni3.8 alloys.
| | x (N) | Analyzed composition (at.%) | Ratio | | La | Pr | Mg | Al | Mn | Co | Ni |
| | 0.0 (5) | 12.0 ± 0.2 | 4.7 ± 0.4 | — | 5.5 ± 0.5 | 5.8 ± 1.4 | 8.6 ± 0.2 | 63.4 ± 1.3 | 5.0 | | 0.1 (2) | 11.0 ± 0.5 | 5.3 ± 0.1 | — | 3.6 ± 1.1 | 3.1 ± 1.1 | 7.7 ± 0.2 | 69.4 ± 2.3 | 5.1 | | 0.3 (11) | 8.5 ± 0.1 | 7.0 ± 0.4 | — | 4.2 ± 0.6 | 3.1 ± 0.9 | 8.2 ± 0.4 | 68.0 ± 1.5 | 5.4 | | 0.5 (11) | 5.9 ± 0.2 | 9.7 ± 0.3 | — | 3.6 ± 0.4 | 3.1 ± 0.5 | 8.0 ± 0.4 | 70.0 ± 0.7 | 5.4 | | 0.7 (5) | — | 14.0 ± 0.2 | — | 3.4 ± 0.4 | 2.8 ± 0.3 | 7.6 ± 0.3 | 72.0 ± 0.8 | 6.1 |
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Number of independent measurements from the M phase. (La,Pr)/(Al,Mn,Co,Ni). |
