Durability of Polymer Electrolyte Membrane Fuel Cells Operated at Subfreezing Temperatures
نویسندگان
چکیده
منابع مشابه
Numerical analysis of reactant transport in the novel tubular polymer electrolyte membrane fuel cells
In present work, numerical analysis of three novel PEM fuel cells with tubular geometry was conducted. Tree different cross section was considered for PEM, namely: circular, square and triangular. Similar boundary and operational conditions is applied for all the geometries. At first, the obtained polarization curve for basic architecture fuel cells was validated with experimental data and then...
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Rod Borup,* Jeremy Meyers,‡ Bryan Pivovar,† Yu Seung Kim,† Rangachary Mukundan,† Nancy Garland,§ Deborah Myers, Mahlon Wilson,† Fernando Garzon,† David Wood,† Piotr Zelenay,† Karren More,⊥ Ken Stroh,† Tom Zawodzinski, James Boncella,† James E. McGrath, Minoru Inaba,# Kenji Miyatake,∇ Michio Hori, Kenichiro Ota, Zempachi Ogumi,£ Seizo Miyata,+ Atsushi Nishikata,¶ Zyun Siroma,∞ Yoshiharu Uchimoto...
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A new approach to elucidate the operation and control of Polymer Electrolyte Membrane (PEM) fuel cells is being developed. A global reactor engineering approach is applied to PEM fuel cells to identify the essential physics that govern the dynamics in PEM fuel cells. Reaction engineering principles are employed to develop a one-dimensional differential PEM fuel cell suitable for elucidating the...
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The chemical analysis of processes inside fuel cells under operating conditions in either direct or inverted (electrolysis) mode and their correlation with potentiostatic measurements is a crucial part of understanding fuel cell electrochemistry. We present a relatively simple yet powerful experimental setup for online monitoring of the fuel cell exhaust (of either cathode or anode side) downst...
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A polymer electrolyte membrane fuel cell with amorphous hydrated ruthenium dioxide (RuO2 " xH2O) supercapacitative sublayers inserted between the electrocatalyst layers and the Nafion membrane was fabricated to enhance the cell’s pulse power output. RuO2 " xH2O material showed a high capacitance ~ca. 230 F/g! and allowed a much higher pulse power output, which was demonstrated by cyclic voltamm...
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ژورنال
عنوان ژورنال: Journal of The Electrochemical Society
سال: 2016
ISSN: 0013-4651,1945-7111
DOI: 10.1149/2.0191613jes