David A Cullen Senior R&D Staff Contact CULLENDA@ORNL.GOV All Publications Catalyst Layer Resistance and Utilization in PEM Electrolysis 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 Failure to Fail: Recreating Real-life Nanoparticle Degradation in Model Environments 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 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 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 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 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 Amino-tethering synthesis strategy toward highly accessible sub-3-nm L10-PtM catalysts for high-power fuel cells Electrospun Nanofiber Electrodes for High and Low Humidity PEMFC Operation Improved Fuel Cell Chemical Durability of an Heteropoly Acid Functionalized Perfluorinated Terpolymer-Perfluorosulfonic Acid ... Pagination First page « First Previous page ‹‹ Page 1 Current page 2 Page 3 … Next page ›› Last page Last » Key Links Curriculum Vitae Google Scholar ORCID Organizations Physical Sciences Directorate User Facilities Center for Nanophase Materials Sciences Nanomaterials Characterization Section electron Microscopy and Microanalysis Group
