Haoran Yu Staff Scientist Contact YUH1@ORNL.GOV All Publications Understanding Interfacial Electrochemical Reactions through in situ ec-STEM and IL-Cryo-STEM Grooved electrodes for high-power-density fuel cells Amino-tethering synthesis strategy toward highly accessible sub-3-nm L10-PtM catalysts for high-power fuel cells Electrochemical characterization of evolving ionomer/electrocatalyst interactions throughout accelerated stress tests Design of graded cathode catalyst layers with various ionomers for fuel cell application Outstanding Platinum Group Metal-free Bifunctional Catalysts for Rechargeable Zinc-Air Batteries Elucidating the impact of the ionomer equivalent weight on a platinum group metal-free PEMFC cathode via oxygen limiting curr... MoS2 nanosheet integrated electrodes with engineered 1T-2H phases and defects for efficient hydrogen production in practical ... A general synthesis of single atom catalysts with controllable atomic and mesoporous structures Unveiling mechanism of surface-guided platinum nanowire growth Tracking Degradation in Individual Catalyst Nanoparticles Under Fuel Cell-Relevant Cycling Conditions by Identical-Location STEM Tracking Nanoparticle Degradation across Fuel Cell Electrodes by Automated Analytical Electron Microscopy... Improved Throughput, Statistics, and Instrument Utilization with Automated Analytical Electron Microscopy... Atomically dispersed iron sites with a nitrogen–carbon coating as highly active and durable oxygen reduction catalysts for fuel cells Electrolyzer Performance Loss from Accelerated Stress Tests and Corresponding Changes to Catalyst Layers and Interfaces Degradation Mechanisms in Advanced MEAs for PEM Water Electrolyzers Fabricated by Reactive Spray Deposition Technology Elucidating the Roles of Amorphous Alumina Overcoat in Palladium-Catalyzed Selective Hydrogenation Recreating Fuel Cell Catalyst Degradation in Aqueous Environments for Identical-Location Scanning Transmission Electron Microscopy Studies Tuning Catalyst Activation and Utilization Via Controlled Electrode Patterning for Low-Loading and High-Efficiency Water Electrolyzers Exploring the Impacts of Conditioning on Proton Exchange Membrane Electrolyzers by In Situ Visualization and Electrochemistry Characterization Insights into the rapid two-phase transport dynamics in different structured porous transport layers of water electrolyzers through high-speed visualization W-induced morphological modification of NiFe layered double hydroxides as efficient electrocatalysts for overall water splitting Automated methods for improved characterization of alloy nanoparticle catalysts... Quantifying the projected unit cell size variation of off-axis PtCo catalyst nanoparticles through 4D-STEM... Impact of Carbon Support Structure on the Durability of PtCo Electrocatalysts Pagination First page « First Previous page ‹â¶Ä¹ Page 1 Current 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
