David A Cullen Senior R&D Staff Contact CULLENDA@ORNL.GOV All Publications Hollow Silica Particles: A Novel Strategy for Cost Reduction Impact of Carbon Support Structure on the Durability of PtCo Electrocatalysts Electrochemical ammonia synthesis via nitrate reduction on Fe single atom catalyst... Single Atomic Iron Site Catalysts via Benign Aqueous Synthesis for Durability Improvement in Proton Exchange Membrane Fuel Ce... Impact of Catalyst Ink Dispersing Solvent on PEM Fuel Cell Performance and Durability Porphyrin Aerogel Catalysts for Oxygen Reduction Reaction in Anion-Exchange Membrane Fuel Cells Ultrathin platinum nanowire based electrodes for high-efficiency hydrogen generation in practical electrolyzer cells Constructing Ultrathin W-Doped NiFe Nanosheets via Facile Electrosynthesis as Bifunctional Electrocatalysts for Efficient Water Splitting Effect of Catalyst and Catalyst Layer Composition on Catalyst Support Durability Highly Efficient Plasmon Induced Hot-Electron Transfer at Ag/TiO2 Interface Synthesis strategies toward improved ordering of [MnO6] octahedra in tunnel structured 2 × 3 and 2 × 4 MnO2 AuPd Nanoicosahedra: Atomic-Level Surface Modulation for Optimization of Electrocatalytic and Photocatalytic Energy Conversion New roads and challenges for fuel cells in heavy-duty transportation Promoting Atomically Dispersed MnN 4 Sites via Sulfur Doping for Oxygen Reduction: Unveiling Intrinsic Activity and Degradation in Fuel Cells Dynamically Unveiling Metal–Nitrogen Coordination during Thermal Activation to Design High-Efficient Atomically Dispersed CoN4 Active Sites Status and challenges for the application of platinum group metal-free catalysts in proton-exchange membrane fuel cells Tailoring the Radionuclide Encapsulation and Surface Chemistry of La(223Ra)VO4 Nanoparticles for Targeted Alpha Therapy... On the enhanced sulfur and coking tolerance of Ni-Co-rare earth oxide catalysts for the dry reforming of methane Engineering Atomically Dispersed FeN 4 Active Sites for CO 2 Electroreduction Synthesis of novel phases in Si nanowires using diamond anvil cells at high pressures and temperatures... Performance enhancement and degradation mechanism identification of a single-atom Co–N–C catalyst for proton exchange membrane fuel cells Single-Iron Site Catalysts with Self-Assembled Dual-size Architecture and Hierarchical Porosity for Proton-Exchange Membrane Fuel Cells Durability evaluation of a Fe–N–C catalyst in polymer electrolyte fuel cell environment via accelerated stress tests Multi-Scale Characterization and Simulation of Impact Welding Between Immiscible Mg/Steel Alloys Chemical Vapor Deposition for Atomically Dispersed and Nitrogen Coordinated Single Metal Site Catalysts... Pagination First page « First Previous page ‹‹ … Page 4 Current page 5 Page 6 … 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
