Fig. 1
From: Anchoring zero valence single atoms of nickel and iron on graphdiyne for hydrogen evolution
Protocols for the synthesis of Ni/GD and Fe/GD. A two-step strategy for anchoring-isolated Ni/Fe atoms on GD, including the in situ growth of GD layers on 3D carbon cloth (CC) surfaces via Glaser-Hay cross-coupling reaction, followed by the electrochemical reduction of metal ions (Ni2+ and Fe3+) into zerovalent metallic species [Ni(0) and Fe(0), respectively]
