Study on Hydrogen Crossover at Different Current Densities in Polymer Electrolyte Membrane Fuel Cells

Autor:	Min Soo Kim, Aeri Jung, Bo Ki Hong, Kookil Han
Rok vydání:	2015
Předmět:	chemistry.chemical_classification Membrane Materials science chemistry Hydrogen Chemical engineering Crossover chemistry.chemical_element Proton exchange membrane fuel cell Polymer Electrolyte Current (fluid) Polymer electrolyte membrane electrolysis
Zdroj:	ECS Transactions. 65:45-49
ISSN:	1938-6737 1938-5862
Popis:	The crossover is an inevitable phenomenon caused by the porosity of the membrane. Through this, not only protons, but also gases such as hydrogen, oxygen and nitrogen can permeate to opposite side and this causes the severe durability problem. Despite of this importance of crossover, there have been some limits in research. Therefore, much research has been conducted for an open circuit condition. For this reason, in this study, the hydrogen crossover rate under various current densities is experimentally measured for different relative humidity conditions. To detect hydrogen crossover rate, mass spectrometer is used in this experiment. With the mass spectrometer, the hydrogen crossover rate is measured and analyzed for different relative humidity conditions at various current densities.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::5ee77ef5546363a5ccde4f4ad016f450 https://doi.org/10.1149/06501.0045ecst Zobrazit plný text záznamu