.... 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...

... fuel cells (PEMFCs). Effects on the current density, temperature difference, and water content have been simulated and analyzed, respectively, with conventional and interdigitated flow field when the humidification in the anode or cathode is from 25% to 100%, respectively. The numerical results show...

...M. Rezaei; M. Mohseni In the presence of the activator-platinum, the molecules of H 2 in anode of PEMFC discharge electrons to lines and become H-ions, meanwhile the molecules of O 2 in the cathode receive the electrons from lines as well as protons from PEM, and so the molecules of water...

... 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...

... 08 2009 12 04 2011 15 12 2011 15 12 2011 phosphoric acid fuel cells platinum alloys phosphoric acid polybenzimidazole PBI Pt alloy electrocatalyst oxygen reduction PEMFC fuel cell Polymer electrolyte membrane fuel cells (PEMFCs) have been intensively...

... severely limits its use in HT-PEMFC are its limitations as an ionic conductor at temperatures above 80 °C and its limited range of operating temperatures. Methanol oxidation comparison between PBI and Nafion as binder at different temperatures using 0.5 M phosphoric acids, catalyst loading was 0.02...

... applications. The various stages attained towards the final fabrication of the foil protected lightweight current collector, has also been highlighted in the present work. hot pressing proton exchange membrane fuel cells Bipolar plates GDL PEM Nafion PEMFC Proton exchange membrane fuel...

... 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...

...% wet proof. aluminium contact resistance proton exchange membrane fuel cells thermal conductivity thermal conductivity PTL GDL fuel cell PEMFC As both modeled ( 1 2 3 ) and experimentally measured ( 4 5 ), the operating proton exchange membrane fuel cell (PEMFC...

... (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...

... in this study. Figure 5 shows a simplified sketch of a PEM fuel cell, with a polymeric membrane in the middle, and, going from the center to the sides, two catalyst layers, two GDLs, and two plates with air and hydrogen flow channels. Simplified PEMFC sketch As Fig. 6a shows, the control...

...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...