Shufang Ji

TL;DR: Experiments demonstrated that maintaining the Fe as isolated atoms and incorporating nitrogen was essential to deliver the high performance, and the high reactivity to the high efficiency of the single Fe atoms in transporting electrons to the adsorbed OH species.

TL;DR: In this article, the authors highlight and summarize recent advances in wet-chemistry synthetic methods for single-atom catalysts with special emphasis on how to achieve the stabilization of single metal atoms against migration and agglomeration.

TL;DR: The roles of nanoparticles and isolated single atom sites in catalytic reactions are surveyed and the challenges and opportunities of well-defined materials for catalyst development are highlighted, gaining a fundamental understanding of their active sites.

TL;DR: In this review, various synthetic strategies for the synthesis of SASC are summarized with concrete examples highlighting the key issues of the synthesis methods to stabilize single metal atoms on supports and to suppress their migration and agglomeration.

TL;DR: Benefiting from structure functionalities and electronic control of a single-atom iron active center, the catalyst shows a remarkable performance with enhanced kinetics and activity for oxygen reduction in both alkaline and acid media and shows promise for substitution of expensive platinum to drive the cathodic oxygen reduction reaction in zinc-air batteries and hydrogen-air fuel cells.