Oxygen Evolution/Reduction Reaction Catalysts: From In Situ Monitoring and Reaction Mechanisms to Rational Design

Y Zhao, DP Adiyeri Saseendran, C Huang… - Chemical …, 2023 - ACS Publications
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 …

The progress and outlook of metal single-atom-site catalysis

X Liang, N Fu, S Yao, Z Li, Y Li - Journal of the American Chemical …, 2022 - ACS Publications
Single-atom-site catalysts (SASCs) featuring maximized atom utilization and isolated active
sites have progressed tremendously in recent years as a highly prosperous branch of …

Construction of Co4 Atomic Clusters to Enable Fe−N4 Motifs with Highly Active and Durable Oxygen Reduction Performance

A Han, W Sun, X Wan, D Cai, X Wang… - Angewandte Chemie …, 2023 - Wiley Online Library
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 …

Atomically dispersed iron sites with a nitrogen–carbon coating as highly active and durable oxygen reduction catalysts for fuel cells

S Liu, C Li, MJ Zachman, Y Zeng, H Yu, B Li, M Wang… - Nature Energy, 2022 - nature.com
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 …

Tuning the thermal activation atmosphere breaks the activity–stability trade-off of Fe–N–C oxygen reduction fuel cell catalysts

Y Zeng, C Li, B Li, J Liang, MJ Zachman, DA Cullen… - Nature Catalysis, 2023 - nature.com
Fe–N–C catalysts are the most promising platinum group metal-free oxygen-reduction
catalysts, but they suffer from a low density of active metal sites and the so-called activity …

High loading of single atomic iron sites in Fe–NC oxygen reduction catalysts for proton exchange membrane fuel cells

A Mehmood, M Gong, F Jaouen, A Roy, A Zitolo… - Nature Catalysis, 2022 - nature.com
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 …

Potential-driven restructuring of Cu single atoms to nanoparticles for boosting the electrochemical reduction of nitrate to ammonia

J Yang, H Qi, A Li, X Liu, X Yang, S Zhang… - Journal of the …, 2022 - ACS Publications
Restructuring is ubiquitous in thermocatalysis and of pivotal importance to identify the real
active site, yet it is less explored in electrocatalysis. Herein, by using operando X-ray …

Insights into the activity of single-atom Fe-NC catalysts for oxygen reduction reaction

K Liu, J Fu, Y Lin, T Luo, G Ni, H Li, Z Lin… - Nature …, 2022 - nature.com
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 …

Iron atom–cluster interactions increase activity and improve durability in Fe–N–C fuel cells

X Wan, Q Liu, J Liu, S Liu, X Liu, L Zheng… - Nature …, 2022 - nature.com
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 …

What is the Real Origin of the Activity of Fe–N–C Electrocatalysts in the O2 Reduction Reaction? Critical Roles of Coordinating Pyrrolic N and Axially Adsorbing …

X Hu, S Chen, L Chen, Y Tian, S Yao, Z Lu… - Journal of the …, 2022 - ACS Publications
Fe–N–C electrocatalysts have emerged as promising substitutes for Pt-based catalysts for
the oxygen reduction reaction (ORR). However, their real catalytic active site is still under …