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 …

Photocatalysts with metal single atoms (SAs) as active sites have attracted widespread
interest owing to their maximum atomic utilization efficiency, well-defined active centers and …

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 …

Inflammatory bowel disease can be caused by the dysfunction of the intestinal mucosal
barrier and dysregulation of gut microbiota. Traditional treatments use drugs to manage …

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 …

Anion-exchange membrane fuel cells and Zn–air batteries based on non-Pt group metal
catalysts typically suffer from sluggish cathodic oxygen reduction. Designing advanced …

Single-metal site catalysts have exhibited highly efficient electrocatalytic properties due to
their unique coordination environments and adjustable local structures for reactant …

Oxygen reduction reaction (ORR) activity can be effectively tuned by modulating the electron
configuration and optimizing the chemical bonds. Herein, a general strategy to optimize the …

In this study, we present microporous carbon (MPC), hollow microporous carbon (HMC) and
hierarchically porous carbon (HPC) to demonstrate the importance of strategical designing …

As low-cost electrocatalysts for oxygen reduction reaction applied to fuel cells and metal-air
batteries, atomic-dispersed transition metal-nitrogen-carbon materials are emerging, but the …