Carbon corrosion mechanism and mitigation strategies in a …
2021年3月15日 · To provide a clear picture for understanding the carbon corrosion mechanisms and their corresponding mitigation strategies with respect to the PEMFC for vehicle applications, this paper divides the operation conditions into three categories: startup and shutdown processes, water flooding process and long-term operation, and reviews the ...
Carbon Corrosion in PEM Fuel Cells and the Development of …
2018年3月15日 · Carbon corrosion is an important degradation mechanism that can impair PEMFC performance through the destruction of catalyst connectivity, collapse of the electrode pore structure, loss of hydrophobic character, and an increase of the catalyst particle size.
Carbon Support Corrosion in PEMFCs Followed by Identical …
2024年5月16日 · In this work, carbon corrosion accelerated stress tests (ASTs) were performed and lifetimes of high surface area carbon (HSAC) and graphitized carbon (GrC) supports were investigated. 1000 AST cycles were conducted on Pt/HSAC while 10000 AST cycles were conducted on Pt/GrC due to different carbon corrosion rates, and both Pt/HSAC and Pt/GrC ...
A focused review of carbon corrosion mechanism in proton …
In this article, we discuss how hydrogen and oxygen can affect carbon corrosion, and how microscopic inspection can be used to determine the corrosion mechanism. Through this systematic review, the risk of oxidation of the carbon support at high cathode voltage can be mitigated by employing good system methods for start-up and shut-down ...
Unraveling the Effects of Carbon Corrosion on Oxygen Transport ...
2023年12月29日 · The present study systematically investigates the impact of carbon corrosion in CCLs on the performance and oxygen transport process of low Pt loading PEMFCs through accelerated stress tests (ASTs) that simulate start-up/shutdown cycling.
Carbon Corrosion in Fuel Cells-Fundamentals and Mitigation
2024年6月13日 · Through a plethora of demonstration operations of fuel cell vehicles (FCVs), it was found that there are three main conditions that cause carbon corrosion of PEMFC catalysts: (1) at high potential caused by frequent startup and shutdown cycles, (2) reactant starvation caused by the water flooding process, and (3) a cumulative time effect of long...
Understanding the process of carbon corrosion and its impact on ...
2023年11月10日 · There remains a need for a thorough understanding of the process of carbon corrosion in proton exchange membrane fuel cell and its impact on performance degradation so that appropriate preventive measures against carbon corrosion can be implemented. In this study, we examined the carbon corrosion in detail during simulated start-stop cycles.
[PDF] Carbon Corrosion in PEM Fuel Cells and the Development …
The carbon corrosion was quantified by monitoring the evolution of CO and CO 2 at the cathode cell outlet coupled with extensive post-mortem microscopy characterization of the cathode catalyst layer (CCL) structure. We distinguished the potential regimes relevant for carbon corro- sion using non-dispersive infrared spectroscopy (NDIR).
Carbon Corrosion in Proton-Exchange Membrane Fuel Cells: …
2014年6月13日 · Understanding the process of carbon corrosion and its impact on performance degradation during simulated start-stop operations for the proton exchange membrane fuel cell. Electrochimica Acta 2023, 468 , 143193. https://doi.org/10.1016/j.electacta.2023.143193
Carbon corrosion mechanism and mitigation strategies in a …
2021年3月15日 · To provide a clear picture for understanding the carbon corrosion mechanisms and their corresponding mitigation strategies with respect to the PEMFC for vehicle applications, this paper divides the operation conditions into three categories: startup and shutdown processes, water flooding process and long-term operation, and reviews the ...