Unique CO-tolerance of Pt-WOx materials
Well-defined tungsten-oxide-supported platinum nanoparticles (Pt/WOx) were elaborated by impregnation-reduction of a platinum salt onto commercial monoclinic WO3. Field-emission gun scanning electron microscopy (FEG-SEM) and transmission electron microscopy (TEM) revealed that the Pt particles are w...
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| Veröffentlicht in: | Electrochemistry communications 2009-03, Vol.11 (3), p.651-654 |
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| container_title | Electrochemistry communications |
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| creator | MICOUD, F MAILLARD, F GOURGAUD, A CHATENET, M |
| description | Well-defined tungsten-oxide-supported platinum nanoparticles (Pt/WOx) were elaborated by impregnation-reduction of a platinum salt onto commercial monoclinic WO3. Field-emission gun scanning electron microscopy (FEG-SEM) and transmission electron microscopy (TEM) revealed that the Pt particles are well-distributed on the oxide support, present a narrow particle size distribution centered on ca. 2–3 nm and a low degree of agglomeration. Carbon black was added to ensure electronic percolation in the electrodes during the electrochemical measurements. COads electrooxidation currents were monitored at potentials as low as 0.1 V vs. RHE on Pt/WOx, demonstrating high CO-tolerance compared to carbon-supported Pt or PtRu catalysts. |
| doi_str_mv | 10.1016/j.elecom.2009.01.007 |
| format | Article |
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Field-emission gun scanning electron microscopy (FEG-SEM) and transmission electron microscopy (TEM) revealed that the Pt particles are well-distributed on the oxide support, present a narrow particle size distribution centered on ca. 2–3 nm and a low degree of agglomeration. Carbon black was added to ensure electronic percolation in the electrodes during the electrochemical measurements. COads electrooxidation currents were monitored at potentials as low as 0.1 V vs. RHE on Pt/WOx, demonstrating high CO-tolerance compared to carbon-supported Pt or PtRu catalysts.</description><identifier>ISSN: 1388-2481</identifier><identifier>EISSN: 1873-1902</identifier><identifier>DOI: 10.1016/j.elecom.2009.01.007</identifier><language>eng</language><publisher>Lausanne: Elsevier</publisher><subject>Applied sciences ; Chemical Sciences ; Energy ; Energy. 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| source | Elsevier ScienceDirect Journals Complete |
| subjects | Applied sciences Chemical Sciences Energy Energy. Thermal use of fuels Equipments for energy generation and conversion: thermal, electrical, mechanical energy, etc Exact sciences and technology Fuel cells Material chemistry |
| title | Unique CO-tolerance of Pt-WOx materials |
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