Predicting Platinum Dissolution and Performance Degradation under Drive Cycle Operation of Polymer Electrolyte Fuel Cells
نویسندگان
چکیده
منابع مشابه
The Effect of Platinum Electrocatalyst on Membrane Degradation in Polymer Electrolyte Fuel Cells
Membrane degradation is a severe factor limiting the lifetime of polymer electrolyte fuel cells. Therefore, obtaining a deeper knowledge is fundamental in order to establish fuel cells as competitive product. A segmented single cell was operated under open circuit voltage with alternating relative humidity. The influence of the catalyst layer on membrane degradation was evaluated by measuring a...
متن کاملProbing platinum degradation in polymer electrolyte membrane fuel cells by synchrotron X-ray microscopy.
Synchrotron-based scanning transmission X-ray spectromicroscopy (STXM) was used to characterize the local chemical environment at and around the platinum particles in the membrane (PTIM) which form in operationally tested (end-of-life, EOL) catalyst coated membranes (CCMs) of polymer electrolyte membrane fuel cells (PEM-FC). The band of metallic Pt particles in operationally tested CCM membrane...
متن کاملScientific aspects of polymer electrolyte fuel cell durability and degradation.
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...
متن کاملCatalyst supports for polymer electrolyte fuel cells.
A major challenge in obtaining long-term durability in fuel cells is to discover catalyst supports that do not corrode, or corrode much more slowly than the current carbon blacks used in today's polymer electrolyte membrane fuel cells. Such materials must be sufficiently stable at low pH (acidic conditions) and high potential, in contact with the polymer membrane and under exposure to hydrogen ...
متن کاملAdvanced Materials in Polymer Electrolyte Fuel Cells
Polymer electrolyte fuel cells (PEFCs) have attracted much interest due to the need for an efficient, non-polluting power source with high energy density for vehicles in urban environments, as well as portable electronics [...].
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of The Electrochemical Society
سال: 2021
ISSN: 0013-4651,1945-7111
DOI: 10.1149/1945-7111/abf5aa