Fig. 5. A bright field TEM micrograph of the Mg–Ni(Fe)–H powder prepared at 673 K under a 3.7 MPa hydrogen atmosphere for 48 h (a), the corresponding SAED pattern (b), the corresponding high-resolution TEM (HRTEM) image (c) of the selected zone in (a), and corresponding EDS maps showing the distribution of Mg (d), Ni (e) and Fe (f).