Deciphering the exceptional chemical activity of a High-entropy metallic glass
High-entropy metallic glasses (HEMGs), characterized by both compositional and structural disorders, serve as exemplary systems for exploring entropy effects. This study shows that a Fe25Co25Mn25Si10B15 HEMG significantly outperforms conventional Fe-based MGs and reduced iron in degrading azo dyes i...
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| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Taylor & Francis Group
2025-06-01
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| Series: | Materials Research Letters |
| Subjects: | |
| Online Access: | https://www.tandfonline.com/doi/10.1080/21663831.2025.2487076 |
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| Summary: | High-entropy metallic glasses (HEMGs), characterized by both compositional and structural disorders, serve as exemplary systems for exploring entropy effects. This study shows that a Fe25Co25Mn25Si10B15 HEMG significantly outperforms conventional Fe-based MGs and reduced iron in degrading azo dyes in a neutral environment. Through experiments and density functional theory calculations, it is identified that three entropy-related factors boost the reactivity: the high-entropy structure leading to an uneven charge distribution, the well-dispersed Fe atoms initiating the reaction, and the disordered structure activating otherwise inactive Co atoms. These factors collectively enhance the reactivity, highlighting how entropy can influence chemical properties of alloys. |
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| ISSN: | 2166-3831 |