| Autor: |
Carlo Antonione, Marcello Baricco, Emma Paola Maria Virginia Angelini, Francesco Rosalbino, Paolo Spinelli, Silvia Maria Spriano |
| Rok vydání: |
1994 |
| Předmět: |
|
| Zdroj: |
Scopus-Elsevier |
| ISSN: |
0013-4686 |
| DOI: |
10.1016/0013-4686(94)85165-4 |
| Popis: |
Amorphous Zr64Ni36 and Zr48Ni27Al25 alloys have been characterized by physico-chemical, structural and electrochemical techniques in view of their possible application as electrocatalytic materials for hydrogen evolution reaction. Phase transformations of the amorphous materials have been observed by X-ray diffraction and differential scanning calorimetry. The electrocatalytic efficiency has been evaluated on the basis of electrochemical data obtained from cathodic polarization curves carried out in 1 M KOH at 25°C. The results have been compared to those obtained on polycrystalline nickel. The overall experimental data indicate that interesting electrocatalytic performances are obtained with samples chemically pre-treated in HF solutions. In the case of Zr48Ni27Al25 alloy a leaching pre-treatment was also tried with the purpose of obtaining a highly micro-porous structure as a consequence of Al elimination. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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