Applications of Trimetallic Nanoparticles for Anode of Direct Methanol Fuel Cell.
碩士 === 國立臺灣科技大學 === 醫學工程研究所 === 98 === The trimetallic catalysts were synthesized by the modified Watanabe method developed from our lab. The structural parameters of the catalyst are investigated by X-ray Aborption Spectroscopy (XAS) technique. Their correlations between structures and electrochemi...
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| Format: | Others |
| Language: | zh-TW |
| Published: |
2010
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| Online Access: | http://ndltd.ncl.edu.tw/handle/93002087885064904866 |
| Summary: | 碩士 === 國立臺灣科技大學 === 醫學工程研究所 === 98 === The trimetallic catalysts were synthesized by the modified Watanabe method developed from our lab. The structural parameters of the catalyst are investigated by X-ray Aborption Spectroscopy (XAS) technique. Their correlations between structures and electrochemical activity of methanol oxidation reaction (MOR) and CO stripping are explored.
The XAS data indicate the PtRuIr catalysts were in alloy state. XRD and TEM showed that the average size were about 3~5 nm. The MOR activity of the catalyst is improved due to smaller size and higher alloy extent, and CO stripping capability is. It is found that in the PtRuIr series catalysts have better electrochemical performance than the commercial Pt50Ru50 catalyst. In PtRuSn series catalysts, the onset potential of CO stripping decreases when Sn is introduced. It is also found that in the PtRuSn series catalysts have better electrochemical performance than the commercial Pt50Ru50 catalyst.
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