Haoran Yu Staff Scientist Contact YUH1@ORNL.GOV All Publications Quantifying Sources of Voltage Decay in Long-Term Durability Testing for PEM Water Electrolysis Durability of PGM catalyst MEAs of polymer electrolyte membrane fuel cells for heavy-duty vehicles Enhancing durability and activity toward oxygen evolution reaction using single-site Re-doped NiFeOx catalysts at ampere-level Identifying electrochemical processes by distribution of relaxation times in proton exchange membrane electrolyzers... Evaluation of IrO2 catalysts doped with Ti and Nb at industrially relevant electrolyzer conditions: A comprehensive study A Three-dimensional Nanoscale View of Electrocatalyst Degradation in Hydrogen Fuel Cells Iridium Surface Oxide Affects the Nafion Interface in Proton-Exchange-Membrane Water Electrolysis Durability of Highly Active PGM Catalyst MEA Tested Via Nitrogen and Air AST Cycling Under HDV Condition Aerogel-derived nickel-iron oxide catalysts for oxygen evolution reaction in alkaline media Understanding the Effects of Anode Catalyst Conductivity and Loading on Catalyst Layer Utilization and Performance for Anion Exchange Membrane Water Electrolysis Performance Losses and Current-Driven Recovery from Cation Contaminants in PEM Water Electrolysis Amorphous Iridium Oxide-Integrated Anode Electrodes with Ultrahigh Material Utilization for Hydrogen Production at Industrial Current Densities Simulated Start-Stop and the Impact of Catalyst Layer Redox on Degradation and Performance Loss in Low-Temperature Electrolys... Catalyst-Specific Accelerated Stress Tests in Proton Exchange Membrane Low-Temperature Electrolysis for Intermittent Operation Impact of polymer additives on crack mitigation of rod-coated fuel cell cathode catalyst layers... Effect of Engineered Cracks in Catalyst Layers on PEMFC Catalyst Layer Durability... CO2-mediated oxidative dehydrogenation of propane enabled by Pt-based bimetallic catalysts... Probing individual single atom electrocatalyst sites by advanced analytical scanning transmission electron microscopy Catalyst Layer Resistance and Utilization in PEM Electrolysis Pt Nanoparticles on Atomic-Metal-Rich Carbon for Heavy-Duty Fuel Cell Catalysts: Durability Enhancement and Degradation Behavior in Membrane Electrode Assemblies Failure to Fail: Recreating Real-life Nanoparticle Degradation in Model Environments Aging gracefully? Investigating iridium oxide ink's impact on microstructure, catalyst/ionomer interface, and PEMWE performance Reducing Artifacts in BF and HAADF-STEM Images of Pt/C Fuel Cells using MBIR-ARAR Understanding Interfacial Electrochemical Reactions through in situ ec-STEM and IL-Cryo-STEM Investigation of Nanoparticle Degradation in Hydrogen Fuel Cell Systems through Automated Electron Microscopy Pagination Current page 1 Page 2 Page 3 Next page ›â¶Äº Last page Last » Key Links Curriculum Vitae Physical Sciences Directorate Center for Nanophase Materials Sciences Organizations Physical Sciences Directorate User Facilities Center for Nanophase Materials Sciences Nanomaterials Characterization Section electron Microscopy and Microanalysis Group