| Publication Type |
Journal Article |
| Title |
Hydrogen evolution on nanostructured Ni-Cu foams |
| Authors |
D. S. P. Cardoso S Eugénio T. M. Silva D. M. F. Santos C. A. C. Sequeira Maria F. Montemor |
| Groups |
CSSE |
| Journal |
RSC ADVANCES |
| Year |
2015 |
| Month |
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|
| Volume |
5 |
| Number |
54 |
| Pages |
43456-43461 |
| Abstract |
Three-dimensional (3D) nickel-copper (Ni-Cu) nanostructured foams were prepared by galvanostatic electrodeposition, on stainless steel substrates, using the dynamic hydrogen bubble template. These foams were tested as electrodes for the hydrogen evolution reaction (HER) in 8 M KOH solutions. Polarisation curves were obtained for the Ni-Cu foams and for a solid Ni electrode, in the 25-85 degrees C temperature range, and the main kinetic parameters were determined. It was observed that the 3D foams have higher catalytic activity than pure Ni. HER activation energies for the Ni-Cu foams were lower (34-36 kJ mol(-1)) than those calculated for the Ni electrode (62 kJ mol(-1)). The foams also presented high stability for HER, which makes them potentially attractive cathode materials for application in industrial alkaline electrolysers. |
| DOI |
http://dx.doi.org/10.1039/c5ra06517h |
| ISBN |
|
| Publisher |
ROYAL SOC CHEMISTRY |
| Book Title |
|
| ISSN |
2046-2069 |
| EISSN |
|
| Conference Name |
|
| Bibtex ID |
ISI:000354964600049 |
| Observations |
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