SEARCH · Engineering Papers
Results for “Fuel Cells”
Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.
Multi-technique characterization of spray coated and roll-to-roll coated gas diffusion fuel cell electrodes
Here this work reports the characterization of catalyst layer (CL) structure and composition for a set of gas-diffusion electrodes (GDEs) fabricated by different coating methods with the goal of developing a better understanding of CL processing-structure-property-performance relationships. The CL coating techniques used in this study were ultrasonic spray coating, and two roll-to-roll (R2R) methods - gravure and slot die. Scanning transmission electron microscopy (STEM) coupled with X-ray energy dispersive spectroscopy (EDS) analysis of GDE cross-sections provided bulk information, while scanning electron microscopy (SEM) with EDS and X-ray photoelectron spectroscopy (XPS) were used to investigate the near surface and surface composition of the CLs that will be in direct contact with the membrane once the membrane electrode assembly (MEA) is constructed. This study demonstrates that common quantification parameters, namely the F:Pt ratio extracted from cross-sectional STEM-EDS maps and top-down CL measurements with SEM and XPS, along with roughness parameters quantified from SEM micrographs are useful parameters in explaining and potentially predicting performance trends. Additionally, it highlights the importance of understanding key CL surface properties for advancing the manufacturability of high-performance components for polymer electrolyte membrane (PEM) technologies.
Simulation of fuel cell membrane durability under vehicle operation
Not Available
Rapid laser reactive sintering of BaCe0.7Zr0.1Y0.1Yb0.1O3-δ electrolyte for protonic ceramic fuel cells
Not Available
Unmasking the Latent Passivating Roles of Ni(OH)2 on the Performance of Pd-Ni Electrocatalysts for Alkaline Ethanol Fuel Cells
Explore the source record for details and available documents.
Palladium-ceria catalysts with enhanced alkaline hydrogen oxidation activity for anion exchange membrane fuel cells
Explore the source record for details and available documents.
A Redox-Robust Ceramic Anode-Supported Low-Temperature Solid Oxide Fuel Cell
Not provided.
Morphology of Thin-Film Nafion on Carbon as an Analogue of Fuel Cell Catalyst Layers
Not Available
Scaffold Infiltrated Cathodes for Low-Temperature Solid Oxide Fuel Cells
Not provided.