.... Chemical stability, mechanical abrasion resistance, surface conductivity, and corrosion resistance in a simulated proton exchange membrane fuel cells (PEMFCs) environment are significantly higher for copper coated by Co–G-SA film. Because the copper coated with Co–G-SA has a low interfacial contact...

...Piotr Piela; Jens Mitzel; Sébastien Rosini; Wojciech Tokarz; Francesco Valle; Alberto Pilenga; Thomas Malkow; Georgios Tsotridis Voltammetry, potentiometry, amperometry, and electrochemical impedance spectroscopy (EIS) were used to study practical polymer electrolyte membrane fuel cell (PEMFC...

...Cheng Wang; Ze Lin Chen; An Wen Tao; Hua Zhang The development of highly active and low-cost catalysts is a challenge for the application and large-scale commercialization of proton exchange membrane fuel cell (PEMFC). In this study, a series of Pt–Ni alloy catalysts is synthesized...

...Qiuhong Jia; Caizhi Zhang; Bin Deng; Ming Han In a proton exchange membrane fuel cell (PEMFC), the hydrogen feed into the anode in a periodical pressure swing, so-called hydrogen pressure pulsation feed (HPPF), significantly affects the transport phenomena of hydrogen and water in the anode flow...

... a longer reach. Moreover, LPS is not restricted to a certain fuel cell system and thus affords a more flexible and versatile employment than its predecessor. PEMFC diffusion hydrogen recirculation mass transport purging Already facing the implications of global warming and the impending...

... on the Performance of a PEM Fuel Cell Stack ,” J. Power Sources , 162 , pp. 444 – 459 . 10.1016/j.jpowsour.2006.07.030 [2] Ferng , Y. M. , and Su , A. , 2007 , “ A Three-Dimensional Full-Cell CFD Model Used to Investigate the Effects of Different Flow Channel Designs on PEMFC Performance ,” J...

...M. Rezaei; M. Mohseni References [1] Ruan , Y. , Wen, Y. M., Li, P., and Shen , W. , 2008 , “ Design of Control Methods for a Portable PEMFC PowerSystem ,” Proceedings of the 7th World Congress on Intelligent Control and Automation ( WCICA'08 ), Chongqing, China , June 25–27, pp...

... and 0.25 mg/cm 2 , respectively. Besides, the optimal PTFE content is the same on both sides of MPL which is found to be 20 wt%. microporous layer gas diffusion layer carbon loading PTFE PEMFC A coating of double-side microporous layer (MPL) on surface of gas diffusion layer (GDL) facing...

...Chiun-Hsun Chen; Tang-Yuan Chen; Chih-Wei Cheng; Rong-Guie Peng This study fabricates a micro proton exchange membrane fuel cell (PEMFC) using micro electro mechanical systems (MEMS) technology. The active area of the membrane is 2 cm × 2 cm (4 cm 2 ). The study is divided into two categories: [(1...

... )]. The development of cathode catalysts is another essential technical issue for commercialization of HT-PEMFCs, because of the high overpotentials for oxygen reductions and high cost of platinum-based catalysts. There has been intensive research to increase catalytic activities and decrease material costs...

... cell methanol PBI phosphoric acid PEMFC Polybenzimidazole (PBI) has a very low methanol permeability compared to Nafion ® 117, which makes it a potential membrane for direct methanol fuel cells (DMFCs). For example, at 25 °C permeabilities of PBI and Nafion were 0.0083 × 10 −12 and 2.3...

... plates GDL PEM Nafion PEMFC Proton exchange membrane fuel cells have vast potential application in the transport sector. As the proton exchange membranes (Nafion) have thicknesses in microns the energy densities observed in PEMFC is the highest. Furthermore as the electrolyte (Nafion...

... 2011 catalysts design engineering power engineering computing proton exchange membrane fuel cells nanostructure microstructure property multiscale model PEMFC Proton exchange membrane fuel cells (PEMFCs) are promising electrochemical devices for a direct conversion...

... of Carbon Felts Used as PEMFC Gas Diffusion Layers ,” Int. J. Therm. Sci. 1290-0729 , 47 , pp. 1 – 6 . 10.1016/j.ijthermalsci.2007.01.018 Ihonen , J. , Mikkola , M. , and Lindhberg , G. , 2004 , “ Flooding of Gas Diffusion Backing in PEFCs ,” J. Electrochem. Soc. 0013-4651 , 151...

... (PEMFC) stack, which were almost impossibly manufactured by traditional manufacturing, were made in this study. The performance of the traditional air-pumping DMFC and that of an air-breathing DMFC were compared in this study. The feasibility of a complex pseudobipolar design DMFC stack was also verified...

...A. S. Bansode; T. Sundararajan; Sarit K. Das Effective supply of reactants and product-water removal are the key issues in proton exchange membrane fuel cell (PEMFC) from the performance view point. Reactant distribution pattern can be one of the potential solutions for the well known water...

...Johan Andre; Nicolas Guillet; Jean-Pierre Petit; Laurent Antoni Increasing lifetime and performance is critical for proton exchange membrane fuel cell (PEMFC) using stainless steel plates. A good compromise between passivity and electrical contact resistance of the plate material is required...

...Benjamin Blunier; Abdellatif Miraoui This paper deals with the state-of-the-art of air management in proton exchange membrane fuel cell (PEMFC), which is a challenge because commercial compressors and humidification systems are not suitable for automotive applications. Major tasks and requirements...

... 03 2010 capillarity diffusion drops evaporation numerical analysis proton exchange membrane fuel cells PEMFC liquid water transport water droplet formation growth coalescence and detachment PEMFC design control and diagnosis The evolution of liquid water at the gas...

...Yong Wang Proton exchange membrane fuel cell (PEMFC)’s power conditioning system (PCS) for residential application always contains two stage converter configuration of the dc-dc converter and the power grid connection dc-ac inverter. As known well, the inverter tends to draw an ac ripple current...