Proton-exchange membrane (PEM) fuel cells are being developed for both automotive (motive and/or auxiliary) and stationary (residential) power applications. Solid oxide fuel cells (SOFCs) also are being pursued for a number of power generation applications, including stationary (residential and utility), and automotive (auxiliary) power sources. For both of these types of fuel cells, the use of...

Key performance characteristics of Proton Exchange Membrane (PEMFC) and Solid Oxide Fuel Cell (SOFC) are compared with emphasis on the sustainability energy pathways showing that hydrogen for use in PEMFC is best supplied from renewable hydrogen.

Low durability is the major challenge hindering the large-scale implementation of proton exchange membrane fuel cell (PEMFC) technology, and corrosion of carbon support materials of current catalysts is the main cause. Here, we describe the finding of remarkably high durability with the use of a novel support material. This material is based on hollow carbon nanocages developed with a high degr...

Results obtained by computer modeling and simulation using ab-initio and molecular dynamics techniques for elucidation of structural and catalytic properties of the PdCoMo trimetallic compound are reported; a comparison of these results with those obtained by sputtering deposition onto a nafion membrane to be used as catalyst for a 1KW PEM fuel cell is made. Structure was calculated by ab-initi...

This paper shows the results of adding static converters (Boost, Buck and Buck-Boost converters) as an adaptation solution between a PEM Fuel Cell generator and a resistive load in order to study different effects of the converter on the generator performances in terms of voltage and current behavior. The presented results are obtained by simulating the Bond Graph developed model under 20-Sim s...

In this paper, the problem of robust fault diagnosis in a PEM Fuel Cell (PEM FC) system is addressed. Fault detection is based on a LPV interval observer able to face the variations of parameters with the operating while preserving the linear structure of the model. At the same time, this approach addresses the robustness problem against modeling uncertainty included as unknown parameters whose...

the produced liquid water in cathode catalyst layer (ccl) has significant effect on the operation of proton exchange membrane fuel cell (pemfc). to investigate this effect, the transport of oxygen in ccl in the presence of immiscible liquid water is studied applying a two-dimensional pore scale model. the ccl was reconstructed as an agglomerated system. to explore the wettability effects, diffe...

proton exchange membrane fuel cells (pemfcs) are electrochemical devices that show the highest power densities compared to the other type of fuel cell. in this work, nanocomposite membranes used for proton exchange membrane fuel cells as poly(vinyl alcohol)/la2ce2o7 (pva-lc) with the aim of increasing the water uptake and proton conductivity. glutaraldehyde (ga) was used as cross linking agent ...

Fuel cells offer the possibility of zero-emissions electricity generation and increased energy security. We review here the current status of solid oxide (SOFC) and polymer electrolyte membrane (PEMFC) fuel cells. Such solid electrolyte systems obviate the need to contain corrosive liquids and are thus preferred by many developers over alkali, phosphoric acid or molten carbonate fuel cells. Dra...

The performance of Proton Exchange Membrane Fuel Cell (PEMFC) can reflect the state health for PEMFC, which is basis PEMFC prognostics, and energy management. This article explores evolution under real traffic environmental conditions based on data from a fuel cell-based vehicle used mail delivery. correlation between output voltage operating during start stop analyzed by three analysis methods...