Fig. 7
From: Partially amorphous iron-copper-nickel sulfides for robust bifunctional electrocatalysis
(a) XPS survey plot of Fe1.4Cu1.2Ni0.4S, (b), (c), (d), and (e) high resolution XPS spectra of Fe2p, Cu2p, Ni2p, and S2p, respectively.
Fig. 7 | Scientific Reports
