Deborah J. Myers

Time-of-Flight Secondary Ion Mass Spectrometry for Characterization of Ir-Based Catalysts for PEM Water Electrolyzers

Abstract Iridium-based catalysts remain essential for enabling durable oxygen evolution in proton-exchange membrane water electrolyzers (PEMWEs), yet their surface and subsurface chemistries remain insufficiently resolved by conventional characterization methods. Here, we establi...

Resolving Active-Site Heterogeneity in Fe–N–C Catalysts by Integrated Multimodal Spectroscopy and Simulation

Abstract Fe–N–C single-atom catalysts are among the most promising electrocatalysts for the oxygen reduction reaction (ORR), yet their atomic-scale structure remains difficult to resolve because high-temperature synthesis generates a diverse population of Fe sites. In this work,...