Polymer electrolyte membrane (PEM) fuel cells or PEMFCs and PEM electrolysis cells or
PEMECs are two closely related electrochemical devices having a similar structure: a PEM …

High-entropy alloys (HEAs) comprising five or more elements in near-equiatomic
proportions have attracted ever increasing attention for their distinctive properties, such as …

Alloying has long been used as a promising methodology to improve the catalytic
performance of metallic materials. In recent years, the field of alloy catalysis has made …

The sluggish nature of the cathodic oxygen reduction reaction (ORR), and the expensive
price of the precious metal-based nanocatalysts are the biggest obstacles to the practical …

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 …

Multi-atom cluster catalysts have turned out to be novel heterogeneous catalysts with atomic
dispersion for electrochemical energy applications. Beyond a simple combination of single …

The design of Pt-based nanoarchitectures with controllable compositions and morphologies
is necessary to enhance their electrocatalytic activity. Herein, we report a rational design …

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

Specific generation of reactive oxygen species (ROS) within tumors in situ catalyzed by
nanozymes is a promising strategy for cancer therapeutics. However, it remains a significant …

The development of Fe single-atom catalysts is greatly impeded by their lower oxygen
reduction reaction (ORR) performance in acid electrolytes when compared with Pt/C …