Fuel Cells and Hydrogen

Doping Stabilizing Isolated Active Sites in Perovskite Lattice for Stable H 2 O 2 Electroproduction

ABSTRACT Developing the efficient catalysts with both high 2e − selectivity and stability remains challenging for on‐site hydrogen peroxide (H 2 O 2 ) synthesis. Perovskite oxides possess dense isolated active sites to convert O 2 into H 2 O 2 , yet their intrinsic structural ins...

Multifunctional Matrix‐Activated Electrodes Enabling Efficient Proton Transport and Durable Low‐Pt Operation for High‐Temperature Proton Exchange Membrane Fuel Cells

ABSTRACT Phosphoric acid (PA)‐related challenges, including PA loss, redistribution, and flooding, critically limit the performance and long‐term durability of high‐temperature proton exchange membrane fuel cells (HT‐PEMFCs) based on PA‐doped membrane electrode assemblies. Althou...

Advanced Multimodal X-ray Visualization Techniques for Unraveling Catalytic Performance and Degradation Mechanisms of Metal Nanoparticles in Fuel Cells

Abstract This Account highlights the transformative advances enabled by the world-first BL36XU beamline dedicated to in situ and operando characterization of metal nanoparticles and adsorbed species in polymer electrolyte fuel cells (PEFCs). While PEFCs hold great promise for sus...

Reconfiguration of Localized Ruthenium Surface via Incorporating Single Platinum Atoms for Favorable Hydrogen Oxidation Catalysis

ABSTRACT Despite the fact that only 2% of active sites can satisfy hydrogen oxidation reaction (HOR) activity thanks to fast kinetics, the fuel cell anode is still dependent on catalysts with large amounts of platinum (Pt). Herein, a minimal‐cost ruthenium catalyst bearing ultral...