Surface structure and catalytic activity of amorphous metallic alloys Fe-Nb-B-RE (RE = Y, Gd, Tb, Dy) in alkaline solution
The thermal stability and characteristics of the surface of the Fe 82 Nb 2 B 14 RE 2 (RE = Y, Gd, Tb, Dy) amorphous alloys were studied by differential scanning calorimetry and atomic force microscopy methods. Alloying of the Fe 84 Nb 2 B 14 alloy by 2 at.% of RE results to increase of nanocrystalli...
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| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
SAGE Publishing
2017-09-01
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| Series: | Adsorption Science & Technology |
| Online Access: | https://doi.org/10.1177/0263617417703757 |
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| Summary: | The thermal stability and characteristics of the surface of the Fe 82 Nb 2 B 14 RE 2 (RE = Y, Gd, Tb, Dy) amorphous alloys were studied by differential scanning calorimetry and atomic force microscopy methods. Alloying of the Fe 84 Nb 2 B 14 alloy by 2 at.% of RE results to increase of nanocrystallization temperature on 110 K for amorphous Fe 82 Nb 2 B 14 RE 2 (RE = Y, Gd, Tb, Dy). Values of the roughness increased after thermal treatment for 1 h in air due to nucleation and growth of nanocrystals in bulk and surface oxidation of the amorphous Fe82Nb2B14RE2 alloys. The nanocrystallization of Fe 82 Nb 2 B 14 RE 2 amorphous alloys after thermal treatment increases the catalytic activity for hydrogen evolution reaction. |
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| ISSN: | 0263-6174 2048-4038 |