| DOI | Resolve DOI: https://doi.org/10.1016/j.apenergy.2012.10.017 |
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| Author | Search for: Zhang, Lei1ORCID identifier: https://orcid.org/0000-0002-1823-2948; Search for: Kim, Jenny1; Search for: Zhang, Jiujun1; Search for: Nan, Feihong; Search for: Gauquelin, Nicolas; Search for: Botton, Gianluigi A.; Search for: He, Ping; Search for: Bashyam, Rajesh; Search for: Knights, Shanna |
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| Affiliation | - National Research Council of Canada. Energy, Mining and Environment
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| Format | Text, Article |
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| Subject | Alloy catalyst; Carbon monoxide tolerance; Core shell structure; Electrochemical measurements; Energy dispersive X-ray spectrometry; High resolution; High-angle annular dark fields; Hydrogen oxidation reaction; Reducing atmosphere; Ruthenium precursors; Scanning transmission electron microscopy; TiO; Electrocatalysts; Electron energy loss spectroscopy; Platinum alloys; Proton exchange membrane fuel cells (PEMFC); Shells (structures); Titanium dioxide; X ray diffraction; Ruthenium alloys; catalysis; catalyst; electrochemical method; irradiance; microwave radiation; pyrolysis |
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| Abstract | A new method is developed for synthesizing Ti4O7 supported Ru@Pt core-shell catalyst (Ru@Pt/Ti4O7) through pyrolysis followed by microwave irradiation. The purpose is to improve the Ru durability of PtRu from core-shell structure and strong bonding to Ti4O7 oxide. In this method, the first step is to co-reduce the mixture of ruthenium precursor and TiO2 in a H2 reducing atmosphere under heat-treatment to obtain a Ru core on Ti4O7 support, and the second step is to create a shell of platinum via microwave irradiation. Energy dispersive X-ray spectrometry, X-ray Diffraction, High-resolution Scanning Transmission Electron Microscopy with the high-angle annular dark-field method and Electron Energy-Loss Spectroscopy are used to demonstrate that this catalyst with larger particles has a core-shell structure with a Ru core and a Pt shell. Electrochemical measurements show Ru@Pt/Ti4O7 catalyst has a higher CO-tolerance capability than that of PtRu/C alloy catalyst. |
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| Publication date | 2012-11-11 |
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| In | |
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| Language | English |
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| Peer reviewed | Yes |
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| NPARC number | 21270364 |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | 731129f8-091c-43a0-96b3-79cbab219259 |
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| Record created | 2014-02-05 |
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| Record modified | 2021-08-13 |
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