Direct formation of Pt catalyst on gas diffusion layer using sonochemical deposition method for the application in polymer electrolyte membrane fuel cell
| Autor: | Oh Joong Kwon, Taeho Lim, Mohanraju Karuppannan, Yung-Eun Sung, Youngkwang Kim |
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| Rok vydání: | 2018 |
| Předmět: |
Materials science
endocrine system diseases Gas diffusion electrode Renewable Energy Sustainability and the Environment Energy Engineering and Power Technology Proton exchange membrane fuel cell chemistry.chemical_element 02 engineering and technology Electrolyte 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Platinum on carbon 0104 chemical sciences Catalysis Fuel Technology chemistry Chemical engineering 0210 nano-technology Platinum Dissolution Carbon |
| Zdroj: | International Journal of Hydrogen Energy. 43:10431-10439 |
| ISSN: | 0360-3199 |
| Popis: | In this study, the facile and direct formation of platinum catalyst on a carbon paper (gas diffusion layer) via the sonochemical deposition method is demonstrated. An ultrasound irradiation with a carbon paper substrate in a platinum precursor solution formed interconnected platinum grains on the carbon paper surface. The surface morphology and deposition amount of platinum were strong functions of both ultrasound parameters (power and time) and solution composition. The platinum-deposited carbon paper was then directly used as a gas diffusion electrode in PEMFC without adding the ionomer. This exhibited high stability in the accelerated stress test in a single cell operation. The interconnected grains of platinum on carbon paper had high resistance to dissolution in an oxidizing environment and the absence of carbon support also enhanced resistance to carbon oxidation. Although the overall performance did not exceed that of the commercial Pt/C, this approach may be an option to form a stable platinum catalyst for PEMFCs. |
| Databáze: | OpenAIRE |
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