Journal of Fuel Cell Science and Technology: Recent submissions
Now showing items 221-240 of 854
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Optimization of an Integrated SOFC-Fuel Processing System for Aircraft Propulsion
(The American Society of Mechanical Engineers (ASME), 2012)As fuel cells continue to improve in performance and power densities levels rise, potential applications ensue. System-level performance modeling tools are needed to further the investigation of ... -
An Improved MRT Lattice Boltzmann Model for Calculating Anisotropic Permeability of Compressed and Uncompressed Carbon Cloth Gas Diffusion Layers Based on X-Ray Computed Micro-Tomography
(The American Society of Mechanical Engineers (ASME), 2012)The gas diffusion layers (GDLs) in polymer proton exchange membrane fuel cells are under compression in operation. Understanding and then being able to quantify the reduced ability of GDLs to ... -
An Integrated Sonication Technique for Electrodeposition of Platinum and Ruthenium on Carbon Nanotubes for Methanol Oxidation
(The American Society of Mechanical Engineers (ASME), 2012)An electrodeposition technique that could significantly improve the deposition of platinum-ruthenium (Pt-Ru) nanoparticles onto carbon nanotubes (CNTs) directly grown on carbon cloths was adopted ... -
Synthesis of Y0.2 ZrX Ce0.8−X O1.9 Electrolytes From the Sol-Gel Method for Intermediate Temperature URSOFC Application
(The American Society of Mechanical Engineers (ASME), 2012)A series of Y0.2 Zrx Ce0.8−x O1.9 compounds (0 ≤ x ≤ 0.6) had been prepared by the modified sol-gel method and characterized by powder X-ray diffraction, thermo-gravimetric analysis, four-probe ... -
Impact of Microchannel Boundary Conditions and Porosity Variation on Diffusion Layer Saturation and Transport in Fuel Cells
(The American Society of Mechanical Engineers (ASME), 2012)Polymer electrolyte membrane (PEM) fuel cell flooding can be detrimental to energy generation performance due to its role in reducing gas diffusion layer (GDL) oxygen transport. Previous transport ... -
Corrosion Resistance of SOFC and SOEC Glass-Ceramic Seal Materials in High Temperature Steam/Hydrogen
(The American Society of Mechanical Engineers (ASME), 2012)There exists concern that glass-ceramic seal materials may not tolerate the high temperature gaseous environment in solid oxide fuel cell (SOFC) and solid oxide electrolysis cell (SOEC) applications, ... -
Critique and Improvement of a One-Dimensional Semianalytical Model of a Direct Methanol Fuel Cell
(The American Society of Mechanical Engineers (ASME), 2012)A constructive critique and a suite of proposed improvements for a recent one-dimensional semianalytical model of a direct methanol fuel cell are presented for the purpose of improving the ... -
Impact of Cofiring Ceria in Ni/YSZ SOFC Anodes for Operation With Syngas and n-Butane
(The American Society of Mechanical Engineers (ASME), 2012)This study explores cofiring ceria (CeO2 ) with NiO and 8 mol% yttria-stabilized zirconia (YSZ) to form Ni-based cermet anodes for high-temperature solid oxide fuel cells (SOFCs) operating on ... -
Electrocatalytic Reduction of Oxygen on Ni/Graphite Nanoparticles
(The American Society of Mechanical Engineers (ASME), 2012)Ni/Graphite nanocomposite with various compositions were synthesized by a chemical and physical method. These nanocomposites exhibit a 40–60 fold enhancement in O2 reduction activity as compared ... -
Evaluation of Methods for Thermal Management in a Coal-Based SOFC Turbine Hybrid Through Numerical Simulation
(The American Society of Mechanical Engineers (ASME), 2012)Managing the temperatures and heat transfer in the fuel cell of a solid oxide fuel cell (SOFC) gas turbine (GT) hybrid fired on coal syngas presents certain challenges over a natural gas ... -
Measurements of Lateral Impedance and Local Characteristics of Solid Oxide Fuel Cells
(The American Society of Mechanical Engineers (ASME), 2012)Lateral impedance and local characteristics of anode-supported solid oxide fuel cells (SOFCs) are studied in this paper. The testing device, which combines the original cell housing with a ... -
Fuel Cell Power Control Based on a Master-Slave Structure: A Proton Exchange Membrane Fuel Cell Case Study
(The American Society of Mechanical Engineers (ASME), 2012)Fuel cells generally become promising candidates for the electrical power supply in automotive and stationary applications. The power control of the fuel cell is one of the essential problems. ... -
Exergy, Economic, and Environmental Analysis of a PEM Fuel Cell Power System to Meet Electrical and Thermal Energy Needs of Residential Buildings
(The American Society of Mechanical Engineers (ASME), 2012)In this paper, a Polymer Electrolyte Membrane (PEM) fuel cell power system including burner, steam reformer, heat exchanger, and water heater has been considered. A PEM fuel cell system is ... -
A Parametric Study of Bipolar Plate Structural Parameters on the Performance of Proton Exchange Membrane Fuel Cell
(The American Society of Mechanical Engineers (ASME), 2012)In this research, the impact of structural parameters of bipolar plates on the proton exchange membrane (PEM) fuel cell performance has been investigated using numerical method, and this model ... -
Ultrasonic Bonding of Membrane Electrode Assemblies for Low Temperature Proton Exchange Membrane Fuel Cells
(The American Society of Mechanical Engineers (ASME), 2012)Low temperature proton exchange membrane (PEM) fuel cells currently dominate the fuel cell market, yet there are materials-, cost-, reliability-, and manufacturing-related challenges that hinder ... -
Inductive Effect on the Fuel Cell Cathode Impedance Spectrum at High Frequencies
(The American Society of Mechanical Engineers (ASME), 2012)The high frequency electrochemical impedance measurements with positive imaginary components in the impedance complex plot of a polymer electrolyte fuel cell (PEFC) are attributable to the inductance ... -
On the Identification of Impedance Spectroscopy Processes of an SOFC Under Different Hydrogen Concentrations
(The American Society of Mechanical Engineers (ASME), 2012)This paper reports a series of new electrochemical impedance measurements that were performed on an anode supported planar solid oxide fuel cell (SOFC) tested at different anode gas conditions ... -
Electrical Properties of Sr0.86 Y0.08 TiO3 Under Redox and Full Cell Fabrication Conditions
(The American Society of Mechanical Engineers (ASME), 2012)The effects of manufacturing and preparation conditions on the structural and electrical properties of Sr0.86 Y0.08 TiO3 (SYT) reduced in 5% NH3 (95% N2 ) are discussed. The realization of an ... -
Component Failure Analysis From a Stationary Proton Exchange Membrane Fuel Cell Demonstration
(The American Society of Mechanical Engineers (ASME), 2012)A fleet of 91 residential-scale proton exchange membrane (PEM) fuel cells, ranging in size from 1 to 5 kW, was demonstrated at various U.S. federal facilities worldwide. This detailed analysis ... -
Optimizing the Anode Structure of a Passive Tubular-Shaped Direct Methanol Fuel Cell to Operate With High Concentration Methanol
(The American Society of Mechanical Engineers (ASME), 2012)In order to take full advantage of the high energy density available in methanol fuel, one must use high concentration methanol in direct methanol fuel cells (DMFCs). However, this causes ...