Effect of local coordination on catalytic activities and selectivities of Fe-based catalysts for N₂ reduction

Abstract

Electrochemical reduction of nitrogen is considered as a promising route for achieving green and sustainable ammonia synthesis at ambient conditions. Transition metal atom loaded on N-doped graphene is commonly used...

Tuning the Coordination Microenvironment of Central Fe Active Site to Boost Water Electrolysis and Oxygen Reduction Activity

“…It could be an effective strategy to further optimize the catalytic activity and selectivity, and deepen the understanding on the underneath chemistry and physics. [ 18–21 ]…”

“…It could be an effective strategy to further optimize the catalytic activity and selectivity, and deepen the understanding on the underneath chemistry and physics. [18][19][20][21] In respect to the conventional MN 4 active center, introducing nonmetal elements to replace N atom(s) breaks the symmetry of the electron density of the active center, thus change the metalligand interaction nature. In previous works, boron, [22] oxygen, [9] phosphorus, [23] and sulfur [24][25][26] have been considered to coordinate with the single metal atom in the first coordination shell or higher, and strong covalent interactions can stabilize the metal atoms in these configurations.…”