Zobrazeno 1 - 10
of 22
pro vyhledávání: '"Alireza Sadeghi Alavijeh"'
Publikováno v:
Journal of Power Sources Advances, Vol 2, Iss , Pp 100010- (2020)
An in situ accelerated mechanical stress test (ΔP-AMST) that applies relative humidity (RH) cycling combined with a pressure differential (ΔP) at a high temperature is proposed to accelerate mechanical degradation in all types of reinforced membran
Externí odkaz:
https://doaj.org/article/1de7188d3b104c6390ac9126c2e8cce0
Autor:
Owen Thomas, Hongxuan Zhang, Carmen Chuy, Sandeep Bhattacharya, Yunsong Yang, Alireza Sadeghi Alavijeh, Erik Kjeang
Publikováno v:
Journal of Power Sources. 427:207-214
Membrane mechanical durability is one of the primary factors limiting the lifetime of ionomer membranes in polymer electrolyte fuel cells. Due to the importance of membrane dimensional stability during relative humidity (RH) cycles on the magnitude o
Autor:
Will H.J. Kim, Alireza Sadeghi Alavijeh, Gongming Wang, Erik Kjeang, Yadvinder Singh, R. K. N. D. Rajapakse, Ramin M.H. Khorasany
Publikováno v:
International Journal of Hydrogen Energy. 44:12057-12072
Interactions between catalyst layers and membrane are known to influence the mechanical properties of catalyst coated membrane (CCM) composites used in fuel cells, and can further affect their fatigue-driven mechanical fracture — an important lifet
Autor:
Fatemeh ShakeriHosseinabad, Alireza Sadeghi Alavijeh, Shantanu Shukla, Mahmood Khalghollah, Simon Fan, Edward P.L. Roberts
Publikováno v:
ECS Meeting Abstracts. :503-503
Degradation of the air cathodes is one of the key issues affecting the lifetime and durability of alkaline fuel cells and metal-air batteries. To prevent the ingress of electrolyte in the air cathode, modifying the hydrophobicity and thickness of the
Autor:
Alireza Sadeghi Alavijeh, Simon Fan, Edward P.L. Roberts, Fatemeh ShakeriHosseinabad, Mahmood Khalghollah, Shantanu Shukla
Publikováno v:
ECS Meeting Abstracts. :1217-1217
Autor:
Thomas Weissbach, Alireza Sadeghi Alavijeh, Timothy J. Peckham, Steven Holdcroft, Vivian Pan, Andrew G. Wright, Erik Kjeang
Publikováno v:
Chemistry of Materials. 28:8060-8070
The application of highly charged anion exchange membranes is often limited by strong water sorption leading to excessive swelling and eventual dissolution, especially at elevated temperatures. The cross-linking of polymers has been shown to be an ex
Publikováno v:
ECS Meeting Abstracts. :2255-2255
For evaluating the durability of membranes in polymer electrolyte fuel cells (PEFCs) within relatively short time, accelerated stress tests (AST) are used for applying chemical and mechanical stressors by means of current density, cell voltage, tempe
Publikováno v:
Journal of Power Sources. 285:16-28
Creep as a time-dependent mechanical damage acting either independently or in conjunction with other degradation mechanisms is known to reduce the membrane durability of polymer electrolyte fuel cells (PEFCs). Due to the important ionomer coupling of
Autor:
Gongming Wang, Aronne Habisch, Alireza Sadeghi Alavijeh, Erin Rogers, Zachary Raymond Nunn, Erik Kjeang, Michael V. Lauritzen, Ramin M.H. Khorasany
Publikováno v:
Journal of The Electrochemical Society. 162:F1461-F1469
Autor:
Erik Kjeang, Alireza Sadeghi Alavijeh, R. K. N. D. Rajapakse, Ramin M.H. Khorasany, Gongming Wang
Publikováno v:
Journal of Power Sources. 274:1208-1216
The effects of cyclic stresses on the fatigue and mechanical stability of perfluorosulfonic acid (PFSA) membranes are experimentally investigated under standard fuel cell conditions. The experiments are conducted ex-situ by subjecting membrane specim