Investigation of unsupported binary Pt-Ru anode catalysts in nano scale for direct methanol fuel cells
碩士 === 中國文化大學 === 材料科學與製造研究所 === 92 === Abstract This investigation is based on the preparation of colloidal fine oxide particles of platinum and ruthenium in nano-scale from a mixed salt solution of the metals, followed by reduction with hydrogen bubbling. These catalysts were prepared i...
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| Format: | Others |
| Language: | zh-TW |
| Published: |
2004
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| Online Access: | http://ndltd.ncl.edu.tw/handle/86211699607361854050 |
| Summary: | 碩士 === 中國文化大學 === 材料科學與製造研究所 === 92 === Abstract
This investigation is based on the preparation of colloidal fine oxide particles of platinum and ruthenium in nano-scale from a mixed salt solution of the metals, followed by reduction with hydrogen bubbling. These catalysts were prepared in different Pt-Ru ratios and different processes. After characterization of these unsupported Pt-RuOX catalysts in their compositions and morphology, their catalytic activities toward methanol oxidation are measured and compared with the commercially available Pt-Ru catalyst.
The results show that the in—house prepared unsupported catalyst in Pt-Ru ratio 1：1 has a good performance. The catalyst with the reduction of Ru before Pt is the best one in this study. This catalyst shows a higher performance than the commercially available Pt-Ru catalyst.
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