ELECTRODE FOR THE ELECTROLYTIC EVOLUTION OF HYDROGEN
The present invention relates to an electrode and in particular to an electrode suitable for use as a cathode for hydrogen evolution in industrial electrolytic processes and a method for its preparation. The electrode comprises a metal substrate provided with a catalytic coating, said catalytic coat...
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Format | Patent |
Language | English French |
Published |
09.02.2023
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Abstract | The present invention relates to an electrode and in particular to an electrode suitable for use as a cathode for hydrogen evolution in industrial electrolytic processes and a method for its preparation. The electrode comprises a metal substrate provided with a catalytic coating, said catalytic coating comprising a first protective layer in direct contact with the substrate, said first protective layer comprising platinum, in the form of metal or its oxides, and a second layer applied on top of said first protective layer, said second layer comprising platinum, palladium and an element selected from the group of rare earths, in the form of metals or their oxides, wherein said second layer comprises 15-40% by weight of platinum and 10-30% by weight of palladium and 40-75% by weight of an element selected from the group of rare earths referred to metals.
La présente invention concerne une électrode et, en particulier, une électrode appropriée pour être utilisée en tant que cathode pour l'évolution de l'hydrogène dans des processus électrolytiques industriels et un procédé pour sa préparation. L'électrode comprend un substrat métallique pourvu d'un revêtement catalytique, ledit revêtement catalytique comprenant une première couche de protection en contact direct avec le substrat, ladite première couche de protection comprenant du platine, sous forme de métal ou de ses oxydes, et une seconde couche appliquée au-dessus de ladite première couche de protection, ladite seconde couche comprenant du platine, du palladium et un élément choisi dans le groupe des terres rares, sous forme de métaux ou de leurs oxydes, ladite seconde couche comprenant de 15 à 40 % en poids de platine et de 10 à 30 % en poids de palladium et de 40 à 75 % en poids d'un élément choisi dans le groupe des terres rares appelées métaux. |
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AbstractList | The present invention relates to an electrode and in particular to an electrode suitable for use as a cathode for hydrogen evolution in industrial electrolytic processes and a method for its preparation. The electrode comprises a metal substrate provided with a catalytic coating, said catalytic coating comprising a first protective layer in direct contact with the substrate, said first protective layer comprising platinum, in the form of metal or its oxides, and a second layer applied on top of said first protective layer, said second layer comprising platinum, palladium and an element selected from the group of rare earths, in the form of metals or their oxides, wherein said second layer comprises 15-40% by weight of platinum and 10-30% by weight of palladium and 40-75% by weight of an element selected from the group of rare earths referred to metals.
La présente invention concerne une électrode et, en particulier, une électrode appropriée pour être utilisée en tant que cathode pour l'évolution de l'hydrogène dans des processus électrolytiques industriels et un procédé pour sa préparation. L'électrode comprend un substrat métallique pourvu d'un revêtement catalytique, ledit revêtement catalytique comprenant une première couche de protection en contact direct avec le substrat, ladite première couche de protection comprenant du platine, sous forme de métal ou de ses oxydes, et une seconde couche appliquée au-dessus de ladite première couche de protection, ladite seconde couche comprenant du platine, du palladium et un élément choisi dans le groupe des terres rares, sous forme de métaux ou de leurs oxydes, ladite seconde couche comprenant de 15 à 40 % en poids de platine et de 10 à 30 % en poids de palladium et de 40 à 75 % en poids d'un élément choisi dans le groupe des terres rares appelées métaux. |
Author | CALDERARA, ALICE MORA, STEFANIA |
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DocumentTitleAlternate | ELECTRODE POUR L'EVOLUTION ELECTROLYTIQUE DE L'HYDROGENE |
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Snippet | The present invention relates to an electrode and in particular to an electrode suitable for use as a cathode for hydrogen evolution in industrial electrolytic... |
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SubjectTerms | APPARATUS THEREFOR CHEMISTRY ELECTROLYTIC OR ELECTROPHORETIC PROCESSES ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTIONOF COMPOUNDS OR NON-METALS METALLURGY |
Title | ELECTRODE FOR THE ELECTROLYTIC EVOLUTION OF HYDROGEN |
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