On-line mass spectrometry study of carbon corrosion in polymer electrolyte membrane fuel cells
| Autor: | Inchul Hwang, Hyung Suk Oh, Seungjoo Haam, Hansung Kim, Kundu Arunabha, Jong Gil Oh, Bumwook Roh |
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| Rok vydání: | 2008 |
| Předmět: |
chemistry.chemical_classification
Materials science Membrane electrode assembly Proton exchange membrane fuel cell chemistry.chemical_element Polymer Electrolyte Direct-ethanol fuel cell Mass spectrometry Corrosion lcsh:Chemistry lcsh:Industrial electrochemistry lcsh:QD1-999 chemistry Chemical engineering Electrochemistry Carbon lcsh:TP250-261 Nuclear chemistry |
| Zdroj: | Electrochemistry Communications, Vol 10, Iss 7, Pp 1048-1051 (2008) |
| ISSN: | 1388-2481 |
| DOI: | 10.1016/j.elecom.2008.05.006 |
| Popis: | The electrochemical corrosion of carbon catalyst supports in polymer electrolyte membrane (PEM) fuel cells is investigated by monitoring the generation of CO2 using an on-line mass spectrometer at a constant potential of 1.4 V. Our results suggest that carbon supports with a high degree of graphitization are more corrosion-resistant, which results in a dramatic improvement of the catalyst durability. We also show that CO2 measurements performed using on-line mass spectrometry represent a time-effective and reliable method for studying the electrochemical corrosion of carbon supports in PEM fuel cells. Keywords: Durability, Fuel cells, Mass spectrometry, Carbon corrosion, Carbon supports |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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