| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 7893575 | Corrosion Science | 2018 | 10 Pages |
Abstract
Novel ultrafine nanoporous Pt (NP-Pt) ribbons were fabricated by dealloying melt-spun Al85Pt15 and Al85Pt8Ce7 alloys. The addtion of Ce to Al-Pt alloy changed the phase constituents and distribution of the alloy. During alkali-dealloying, CeOx nanorods formed and were distributed in NP-Pt. Sacrificial nanorods were then selectively removed during acid-dealloying, resulting in the formation of hierarchical NP-Pt ribbons with a ligament scale of approximately 3â¯nm. The specific surface area of the NP-Pt was 3 times greater than that of the Al85Pt15 alloy without Ce. NP-Pt with a high active surface area had remarkable electro-catalytic performance and stability towards methanol oxidation.
Related Topics
Physical Sciences and Engineering
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Authors
Xiaolong Zhang, Guijing Li, Dong Duan, Haiyang Wang, Zhanbo Sun,