David A. Cullen

David A Cullen

Distinguished R&D Staff

Contact

CULLENDA@ORNL.GOV

All Publications

Elucidating Processes at Hard-Soft Interfaces in Next-Generation Electrochemical Devices by Cryogenic Electron Microscopy

Investigating the Degradation Mechanism of Proton Exchange Membrane Water Electrolyzers Using Analytical Electron Microscopy

Degradation of Fuel Cell Membrane Electrode Assemblies from Buses Operated More than 25,000 h

Deep Learning Based Sinogram Inpainting for Fast and High-quality Artifact Correction in Electron Tomography

In situ Gas Cell TEM Investigation of Nanoporous and Zeolite-based Nanocatalysts...

Multi-scale Low-dose Cryogenic TEM for Probing Beam-sensitive Thin-film Ionomer Variability Across Electrodes in Hydrogen Devices

Unsupported and Carbon-Supported Silver Catalysts for Oxygen Reduction Reaction in Alkaline Media

Electron microscopy data on irradiation effects in glassy carbon, nuclear graphite, pyrolytic carbon, and carbon fibers

Performance improvement of proton exchange membrane water electrolysis by surface modification of porous transport layers

Self-replenishing Ni-rich stainless-steel electrode toward oxygen evolution reaction at ampere-level...

Quantifying Sources of Voltage Decay in Long-Term Durability Testing for PEM Water Electrolysis

Studying the Durability of Molybdenum Carbide Aerogel as an Electrocatalyst Support for Proton Exchange Membrane Fuel Cells

Synergy between Ni and Fe in NiFe aerogel oxygen evolution reaction catalyst: in situ57Fe Mössbauer and X-ray absorption spectroscopy studies

Durability of PGM catalyst MEAs of polymer electrolyte membrane fuel cells for heavy-duty vehicles

Anomalous Role of Carbon in Pd-Catalyzed Selective Hydrogenation

Enhancing durability and activity toward oxygen evolution reaction using single-site Re-doped NiFeOx catalysts at ampere-level

Atomically Dispersed Ni-N-C Catalysts for Electrochemical CO2 Reduction

Model-based iterative reconstruction with adaptive regularization for artifact reduction in electron tomography...

Comprehensive characterization of the irradiation effects of glassy carbon ☆

A Three-dimensional Nanoscale View of Electrocatalyst Degradation in Hydrogen Fuel Cells

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

Comprehensive Evaluation of commercially Scalable Atomic-layer-deposited Alumina Coating Impact on Full Cell Battery Performance Across Varied Test Conditions

Pd-Ru pair on Pt surface for promoting hydrogen oxidation and evolution in alkaline media...