Oxygen reduction reaction (ORR) is vital for clean and renewable energy technologies,
which require no fossil fuel but catalysts. Platinum (Pt) is the best‐known catalyst for ORR …

Hydrogen energy-based electrochemical energy conversion technologies offer the promise
of enabling a transition of the global energy landscape from fossil fuels to renewable energy …

High‐valent metal‐oxo (HVMO) species are powerful non‐radical reactive species that
enhance advanced oxidation processes (AOPs) due to their long half‐lives and high …

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 …

In recent decades, significant progress has been achieved in rational developments of
electrocatalysts through constructing novel atomistic structures and modulating catalytic …

Hydrogen energy and related technologies are essential for combating climate change and
meeting the growing energy demands. Despite being considered a key technology, proton …

Single-atom catalysts based on metal–N4 moieties and anchored on carbon supports
(defined as M–N–C) are promising for oxygen reduction reaction (ORR). Among those, M–N …

Disentangling the limitations of OO bond activation and OH* site-blocking effects on Pt sites
is key to improving the intrinsic activity and stability of low-Pt catalysts for the oxygen …

While FeN4 species are widely suggested as the active sites of noble-metal-free Fe–N–C
oxygen reduction reaction (ORR) electrocatalysts, the ORR mechanism, particularly the rate …

Highly active and durable platinum group metal-free catalysts for the oxygen reduction
reaction, such as Fe–N–C materials, are needed to lower the cost of proton-exchange …