Journal of Fuel Cell Science and Technology: Recent submissions
Now showing items 381-400 of 854
-
Optimization of Passive Air Breathing Fuel Cell Cathodes
(The American Society of Mechanical Engineers (ASME), 2010)Air-breathing polymer electrolyte membrane fuel cells (ABFCs) use free convection airflow to supply oxygen to their cathodes. These cells are typically characterized by low output power densities ... -
Plasma Nitrided Type 349 Stainless Steel for Polymer Electrolyte Membrane Fuel Cell Bipolar Plate—Part I: Nitrided in Nitrogen Plasma
(The American Society of Mechanical Engineers (ASME), 2010)An austenite 349 stainless steel was nitrided via nitrogen plasma. Glancing angle X-ray diffraction patterns suggest that the nitrided layer is amorphous. X-ray photoelectron spectroscopy analysis ... -
Plasma Nitrided Type 349 Stainless Steel for Polymer Electrolyte Membrane Fuel Cell Bipolar Plate—Part II: Nitrided in Ammonia Plasma
(The American Society of Mechanical Engineers (ASME), 2010)Austenitic 349 stainless steel was nitrided in an NH3 plasma. A low interfacial contact resistance was obtained with the nitrided steel. Glancing angle X-ray diffraction suggests that the nitrided ... -
Optimal Design of Hybrid Electric Fuel Cell Vehicles Under Uncertainty and Enterprise Considerations
(The American Society of Mechanical Engineers (ASME), 2010)Hybrid electric fuel cell vehicles are studied using a system perspective that explores the tradeoffs among fuel economy, acceleration, and other vehicle attributes. Design decisions are derived ... -
Effect of Bridging Groups on Sulfonated Poly(imide-Siloxane) for Application in Proton Exchange Membrane
(The American Society of Mechanical Engineers (ASME), 2010)A series of six-membered sulfonated poly(imide-siloxane)s (SPIs) was synthesized using 1,4,5,8-naphthalenetetracarboxylic dianhydride (NTDA), aminopropyl-terminated polydimethylsiloxane (PDMS) 2,2-benzidi ... -
La0.8Sr0.2Co1−xMnxO3 Cathode and Its Application to Metal-Supported Solid Oxide Fuel Cells
(The American Society of Mechanical Engineers (ASME), 2010)Cathode properties of La0.8Sr0.2Co1−xMnxO3 (LSCM) perovskite oxides were investigated for their application to metal-supported solid oxide fuel cells (SOFCs). La0.8Sr0.2Co0.4Mn0.6O3 (LSCM-8246) had ... -
Shrinkage Control of the Sealing Layer for the Cube-Type Solid Oxide Fuel Cell Bundle
(The American Society of Mechanical Engineers (ASME), 2010)Currently, microtubular solid oxide fuel cells (SOFC) bundles are under development, which consist of microtubular SOFCs (diameter=0.8–2 mm) and porous cathode matrix where the SOFCs are integrated. ... -
Correlating Nitrogen Accumulation With Temporal Fuel Cell Performance
(The American Society of Mechanical Engineers (ASME), 2010)The permeability or crossover characteristics of a typical perfluorosulfonic acid base type membrane are used for the temporal and spatial estimations of nitrogen concentration along the anode ... -
Cost-Effective Single Step Cofiring Process for Manufacturing Solid Oxide Fuel Cells Using HSC™ Anode
(The American Society of Mechanical Engineers (ASME), 2010)The anode-supported planar solid oxide fuel cell (SOFC) was fabricated by a cost-effective single step cofiring process using high shear compaction (HSC)™ anode substrate. The HSC™ process is a ... -
Numerical Analysis of Water Transport Through the Membrane Electrolyte Assembly of a Polymer Exchange Membrane Fuel Cell
(The American Society of Mechanical Engineers (ASME), 2010)The effects of water transport through membrane electrolyte assembly of a polymer exchange membrane fuel cell on cell performance has been studied by a one-dimensional, nonisothermal, steady-state ... -
Effect of Compression on the Water Management of a Proton Exchange Membrane Fuel Cell With Different Gas Diffusion Layers
(The American Society of Mechanical Engineers (ASME), 2010)The gas diffusion layer (GDL) plays an important role in maintaining suitable water management in a proton exchange membrane fuel cell. The properties of the gas diffusion layer, such as its ... -
Simulation Study for the Optimization of Microtubular Solid Oxide Fuel Cell Bundles
(The American Society of Mechanical Engineers (ASME), 2010)Microtubular solid oxide fuel cells (SOFCs) are shown to be robust under rapid temperature changes and have large electrode area per volume (high volumetric power density). Such features are ... -
Degradation of Solid Oxide Fuel Cell Cathodes Accelerated at a High Water Vapor Concentration
(The American Society of Mechanical Engineers (ASME), 2010)The influence of water vapor in air on power generation characteristic of solid oxide fuel cells was analyzed by measuring cell voltage at a constant current density, as a function of water ... -
Influence of Sulfonationity of Epoxy-Based Semi-Interpenetrating Polymer Networks of Sulfonated Polyimides as Proton Exchange Membranes on the Performance of Fuel Cell Application
(The American Society of Mechanical Engineers (ASME), 2010)A novel epoxy-based semi-interpenetrating polymer networks membrane (SPIX-EP40) as the proton exchange membrane was prepared by a flexible epoxy network with sulfonated polyimide. A series of ... -
Evaluation of Bi2V0.9Cu0.1O5.35—an Aurivillius-Type Conducting Oxide—as a Cathode Material for Single-Chamber Solid-Oxide Fuel Cells
(The American Society of Mechanical Engineers (ASME), 2010)The compound Bi2V0.9Cu0.1O5.35, a typical Aurivillius-type fast oxygen ion conductor, was evaluated as a possible cathode material for single-chamber solid-oxide fuel cells operated under mixed ... -
Magnetic Field Effect on the Hydronium Diffusivity at an Enzymatic Biofuel Cell Anode via Atomistic Analysis
(The American Society of Mechanical Engineers (ASME), 2010)This paper investigates how a constant magnetic field between the anode catalyst and the electrode surface affects the performance of an enzymatic biofuel cell. Molecular dynamics techniques were ... -
Exploring Transient Behavior at Startup of a Polymer Electrolyte Membrane Fuel Cell
(The American Society of Mechanical Engineers (ASME), 2010)A two phase nonisothermal 3D unsteady model is used to study the transients at start-up of a polymer electrolyte membrane fuel cell. The model is used to simulate start-up under different ... -
Hybrid System Test Rig: Start-up and Shutdown Physical Emulation
(The American Society of Mechanical Engineers (ASME), 2010)The University of Genoa (TPG) has designed and developed an innovative test rig for high temperature fuel cell hybrid system physical emulation. It is based on the coupling of a modified ... -
Solid Oxide Fuel Based Auxiliary Power Unit for Regional Jets: Design and Mission Simulation With Different Cell Geometries
(The American Society of Mechanical Engineers (ASME), 2010)Although it accounts for only 4.2% of the total global warming potential, the concern today is that aviation generated CO2 is projected to grow to approximately 5.7% by 2050. Aviation emissions ... -
Thin Film Solid Oxide Fuel Cells Deposited by Spray Pyrolysis
(The American Society of Mechanical Engineers (ASME), 2010)Two techniques of spray pyrolysis, namely, electrostatic and pneumatic spray deposition, were used to deposit samaria-doped ceria (SDC) electrolyte and lanthanum strontium cobalt ferrite (LSCF) ...