David A Cullen Senior R&D Staff Contact CULLENDA@ORNL.GOV All Publications Long-Term Stability of Nanostructured Thin Film Electrodes at Operating Potentials Characterization of Al-Mg Alloy Aged at Low Temperatures Characterization of the effects of different tempers and aging temperatures on the precipitation behavior of Al-Mg (5.25 at.%)-Mn alloys Investigation of thin/well-tunable liquid/gas diffusion layers exhibiting superior multifunctional performance in low-temperature electrolytic water splitting Direct atomic-level insight into the active sites of a high-performance PGM-free ORR catalyst Synthesis of half-sphere/half-funnel shaped silica structures by reagent localization and the role of water in shape control Oxygen Interaction with Hexagonal OsB2 at High Temperature... Correlative Energy-Dispersive X-Ray Spectroscopic Tomography and Atom Probe Tomography of the Phase Separation in an Alnico 8 Alloy Discovery of true electrochemical reactions for ultrahigh catalyst mass activity in water splitting... Thin liquid/gas diffusion layers for high-efficiency hydrogen production from water splitting... Turning the Halide Switch in the Synthesis of Au–Pd Alloy and Core–Shell Nanoicosahedra with Terraced Shells: Performance in Electrochemical and Plasmon-Enhanced Catalysis Direct-write liquid phase transformations with a scanning transmission electron microscope... Atomistic-Scale Simulations of Defect Formation in Graphene under Noble Gas Ion Irradiation Fuel cell electrode optimization through multi-scale analytical microscopy... Structural Characterization of Bimetallic Nanocrystal Electrocatalysts... Characterizing Alnico Alloy by Correlative STEM-EDS Tomography and Atom Probe Tomography Anchorage of γ-Al2O3 nanoparticles on nitrogen-doped multiwalled carbon nanotubes Vapor phase hydrogenation of furfural over nickel mixed metal oxidecatalysts derived from layered double hydroxides... Third order nonlinear optical response exhibited by mono- and fewlayers of WS2 Critical Role of Intercalated Water for Electrocatalytically Active Nitrogen-Doped Graphitic Systems... Distinct photoluminescence and Raman spectroscopy signatures for identifying highly crystalline WS2 monolayers produced by different growth methods Colloidosome like structures: self-assembly of silica microrods... Local platinum environments in a solid analog of the molecular Periana catalyst... Discovery of true electrochemical reactions for ultrahigh catalyst mass activity in water splitting Atomistic-Scale Simulations of Defect Formation in Graphene Under Noble Gas Ion Irradiation Pagination First page « First Previous page ‹‹ … Page 9 Current page 10 Page 11 … 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