David A Cullen Senior R&D Staff Contact 865.576.0230 | CULLENDA@ORNL.GOV All Publications Catalyst Layer Resistance and Utilization in PEM Electrolysis Failure to Fail: Recreating Real-life Nanoparticle Degradation in Model Environments Reducing Artifacts in BF and HAADF-STEM Images of Pt/C Fuel Cells using MBIR-ARAR Cryogenic FIB and (S)TEM for Energy Storage and Conversion Materials Research Aging gracefully? Investigating iridium oxide ink's impact on microstructure, catalyst/ionomer interface, and PEMWE performance Pt Nanoparticles on Atomic-Metal-Rich Carbon for Heavy-Duty Fuel Cell Catalysts: Durability Enhancement and Degradation Behavior in Membrane Electrode Assemblies Regulating Catalytic Properties and Thermal Stability of Pt and PtCo Intermetallic Fuel-Cell Catalysts via Strong Coupling Effects between Single-Metal Site-Rich Carbon and Pt Microstructural characterization of the CGB graphite grade from the molten salt reactor experiment Ionomer-free and recyclable porous-transport electrode for high-performing proton-exchange-membrane water electrolysis Investigation of Nanoparticle Degradation in Hydrogen Fuel Cell Systems through Automated Electron Microscopy Large-scale synthesis of metal/nitrogen Co-doped carbon catalysts for CO2 electroreduction Understanding Interfacial Electrochemical Reactions through in situ ec-STEM and IL-Cryo-STEM Structural and Reactivity Effects of Secondary Metal Doping into Iron-Nitrogen-Carbon Catalysts for Oxygen Electroreduction Coaxial Nanowire Electrodes Enable Exceptional Fuel Cell Durability Electrochemically Grown Ultrathin Platinum Nanosheet Electrodes with Ultralow Loadings for Energy-Saving and Industrial-Level Hydrogen Evolution Characterization approaches for atomically dispersed platinum group metal-free catalysts Grooved electrodes for high-power-density fuel cells Enhancing the Electrochemical Performance of Aqueous Processed Li-Ion Cathodes with Silicon Oxide Coatings TiOx-supported Na-Mn-W oxides for the oxidative coupling of methane Natural fiber-derived gas diffusion layers for high performance, lower cost PEM fuel cells Effect of isopropanol cosolvent on the rheology and spinnability of aqueous polyacrylic acid solutions Trace level of atomic copper in N-doped graphene quantum dots switching the selectivity from C1 to C2 products in CO electroreduction Amino-tethering synthesis strategy toward highly accessible sub-3-nm L10-PtM catalysts for high-power fuel cells Outstanding Platinum Group Metal-free Bifunctional Catalysts for Rechargeable Zinc-Air Batteries Electrospun Nanofiber Electrodes for High and Low Humidity PEMFC Operation 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 Organizations Physical Sciences Directorate User Facilities Center for Nanophase Materials Sciences Nanomaterials Characterization Section electron Microscopy and Microanalysis Group
