Single, double and triple cobalt atoms confined in 2D regular framework for oxygen electrocatalysis

Dual-metal atom incorporated N-doped graphenes as oxygen evolution reaction electrocatalysts: high activities achieved by site synergies

“…[37][38][39] With many intrinsic advantages, DACs have exhibited great potential in various electrocatalytic reactions including our target, the OER. [40][41][42][43][44][45][46][47][48][49][50][51][52][53][54] For example, Zhu et al found that the formation of Fe-Ni atomic pairs in their synthesized nitrogendoped carbon hollow spheres can enhance the activities of both Fe and Ni atoms due to the redistributed charges between them, and the two atoms become ideal catalytic sites for the ORR and OER, respectively. 37 Han et al fabricated Co-Ni sites embedded in nitrogen-doped hollow carbon nanocubes, and found that the synergy of neighboring dual metal centers can optimize the adsorption behaviors and reduce the OER/ORR reaction barriers.…”