fig3
Figure 3. Mg20Bi alloy anode after cycling in Mg20Bi | MBN | Mg20Bi symmetric cell. SEM of Mg20Bi alloy anode: (A) 0 h and (B) after 600 h; (C) EDS mapping of the enlarged part in Figure 3B; (D) XPS spectra at different etching times: Mg 2p and Bi 4f in Mg20Bi alloy anode after 600 h stripping/plating. MBN: Mg(BH4)2·1.9NH3; SEM: Scanning electron microscopy; EDS: Energy-dispersive X-ray spectrometer; XPS: X-ray photograph spectroscopy.
