Scanning tunneling microscopy of amorphous alloy electrocatalysts for water electrolysis
The surface topography of amorphous metals useful as electrocatalysts in water electrolysis, denoted as G16 (Cos<sub>50</sub>Ni<sub>25</sub>Si<sub>15</sub>Bu<sub>10</sub>) and G14 (Fe<sub>60</sub>Co<sub>20</sub>Si<sub>10&l...
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| Autores principales: | , , , |
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| Formato: | Articulo |
| Lenguaje: | Inglés |
| Publicado: |
1989
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| Materias: | |
| Acceso en línea: | http://sedici.unlp.edu.ar/handle/10915/127148 https://www.sciencedirect.com/science/article/abs/pii/0022072889801809 |
| Aporte de: |
| Sumario: | The surface topography of amorphous metals useful as electrocatalysts in water electrolysis, denoted as G16 (Cos<sub>50</sub>Ni<sub>25</sub>Si<sub>15</sub>Bu<sub>10</sub>) and G14 (Fe<sub>60</sub>Co<sub>20</sub>Si<sub>10</sub>B<sub>10</sub>), are studied at the gm scale with a conventional SEM, and at the nm scale with the STM. Both untreated specimens as well as those employed as electrodes for a relatively prolonged time exhibit the same microstructure with amorphous and crystalline surface regions. The microcrystallite reduced size structure, probably involving a very compact structure, appears to be of the greatest importance concerning the electrocatalytic activity of these materials. |
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