The oxygen evolution reaction (OER) and oxygen reduction reaction (ORR) are core steps of
various energy conversion and storage systems. However, their sluggish reaction kinetics …

Metal-based electrocatalysts with different sizes (single atoms, nanoclusters, and
nanoparticles) show different catalytic behaviors for various electrocatalytic reactions …

The electrocatalytic oxygen reduction and evolution of molecular oxygen, known as oxygen
electrocatalysis, is one of the most important reactions that are central to a range of energy …

Single‐atom catalysts (SACs) have attracted extensive interest to catalyze the oxygen
reduction reaction (ORR) in fuel cells and metal–air batteries. However, the development of …

Nitrogen-coordinated single atom iron sites (FeN4) embedded in carbon (Fe–N–C) are the
most active platinum group metal-free oxygen reduction catalysts for proton-exchange …

Non-precious iron-based catalysts (Fe–NCs) require high active site density to meet the
performance targets as cathode catalysts in proton exchange membrane fuel cells. Site …

Fe− N− C catalysts with single‐atom Fe− N4 configurations are highly needed owing to the
high activity for oxygen reduction reaction (ORR). However, the limited intrinsic activity and …

Single-atom Fe-NC catalysts has attracted widespread attentions in the oxygen reduction
reaction (ORR). However, the origin of ORR activity on Fe-NC catalysts is still unclear, which …

Simultaneously increasing the activity and stability of the single-atom active sites of M–N–C
catalysts is critical but remains a great challenge. Here, we report an Fe–N–C catalyst with …

Manipulating the coordination environment of the active center via anion modulation to
reveal tailored activity and selectivity has been widely achieved, especially for carbon …