MEA for alkaline direct ethanol fuel cell with alkali doped PBI membrane and non-platinum electrodes
| Autor: | A. Yu. Leykin, Tarasevich Mikhail R, Alexander D. Modestov, V. Ya. Filimonov |
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| Rok vydání: | 2009 |
| Předmět: |
Alkaline fuel cell
Renewable Energy Sustainability and the Environment Inorganic chemistry Energy Engineering and Power Technology chemistry.chemical_element Electrocatalyst Direct-ethanol fuel cell Catalysis Anode chemistry Electrical and Electronic Engineering Physical and Theoretical Chemistry Cobalt Pyrolysis Power density |
| Zdroj: | Journal of Power Sources. 188:502-506 |
| ISSN: | 0378-7753 |
| Popis: | This paper reports on the fabrication of MEA for alkaline direct ethanol fuel cell (ADEFC). The MEA was fabricated using non-platinum electrocatalysts and a membrane of alkali doped polybenzimidazole (PBI). The employed oxygen reduction catalyst was prepared by pyrolysis of 5,10,15,20-tetrakis(4-methoxyphenyl)-21H,23H-porphine cobalt(II) supported on XC72 carbon. This catalyst is tolerant to ethanol. Electrocatalyst at the anode was RuV alloy supported on XC72 carbon. It was synthesized by reduction of respective salts at elevated temperature. Single cell power density of 100 mW cm −2 at U = 0.4 V was achieved at 80 °C using air at ambient pressure and 3 M KOH + 2 M EtOH anode feed. The developed MEA is considered viable for use in emergency power supply units and in power sources for portable electronic equipment. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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