FeMnCuNiTi and FeMnCuNiMo: Novel high entropy alloys for green hydrogen production
Novel high entropy alloys (HEAs) have been greatly studied due to their structural and mechanical properties. Considering that some of the alloying elements used for producing these alloys are the same used for hydrogen electrocatalysis, few recent studies have been performed for evaluating the effe...
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Elsevier
2025-10-01
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| Series: | Next Materials |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S294982282500574X |
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| author | Andrea Brotzu Carla Lupi Daniela Pilone |
| author_facet | Andrea Brotzu Carla Lupi Daniela Pilone |
| author_sort | Andrea Brotzu |
| collection | DOAJ |
| description | Novel high entropy alloys (HEAs) have been greatly studied due to their structural and mechanical properties. Considering that some of the alloying elements used for producing these alloys are the same used for hydrogen electrocatalysis, few recent studies have been performed for evaluating the effectiveness of these alloys in the hydrogen catalysis. In this research novel FeMnCuNiTi and FeMnCuNiMo alloys were studied. These chromium and cobalt free HEAs were produced by using a centrifugal induction furnace and characterized to highlight their microstructure in the as-cast condition and after homogenization thermal treatment carried out at 1000 °C. The tested alloys, before and after thermal treatment, were also subjected to electrochemical characterization by performing cyclic voltammetry tests to determine the conditions for attaining the best electrocatalytic performances. The results showed that the tested alloys have considerable electrocatalytic activity, comparable with that of commercial alloys containing platinum. These properties could be improved after thermal treatment. |
| format | Article |
| id | doaj-art-99adebedafe144eda013ef20e6ce49e3 |
| institution | Kabale University |
| issn | 2949-8228 |
| language | English |
| publishDate | 2025-10-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Next Materials |
| spelling | doaj-art-99adebedafe144eda013ef20e6ce49e32025-08-20T03:37:31ZengElsevierNext Materials2949-82282025-10-01910105610.1016/j.nxmate.2025.101056FeMnCuNiTi and FeMnCuNiMo: Novel high entropy alloys for green hydrogen productionAndrea Brotzu0Carla Lupi1Daniela Pilone2Dipartimento ICMA, Sapienza Università di Roma, Via Eudossiana 18, Roma 00184, ItalyDipartimento ICMA, Sapienza Università di Roma, Via Eudossiana 18, Roma 00184, ItalyCorresponding author.; Dipartimento ICMA, Sapienza Università di Roma, Via Eudossiana 18, Roma 00184, ItalyNovel high entropy alloys (HEAs) have been greatly studied due to their structural and mechanical properties. Considering that some of the alloying elements used for producing these alloys are the same used for hydrogen electrocatalysis, few recent studies have been performed for evaluating the effectiveness of these alloys in the hydrogen catalysis. In this research novel FeMnCuNiTi and FeMnCuNiMo alloys were studied. These chromium and cobalt free HEAs were produced by using a centrifugal induction furnace and characterized to highlight their microstructure in the as-cast condition and after homogenization thermal treatment carried out at 1000 °C. The tested alloys, before and after thermal treatment, were also subjected to electrochemical characterization by performing cyclic voltammetry tests to determine the conditions for attaining the best electrocatalytic performances. The results showed that the tested alloys have considerable electrocatalytic activity, comparable with that of commercial alloys containing platinum. These properties could be improved after thermal treatment.http://www.sciencedirect.com/science/article/pii/S294982282500574XCatalytic alloysElectrocatalysisHigh entropy alloysHydrogen evolution reactionWater splitting |
| spellingShingle | Andrea Brotzu Carla Lupi Daniela Pilone FeMnCuNiTi and FeMnCuNiMo: Novel high entropy alloys for green hydrogen production Next Materials Catalytic alloys Electrocatalysis High entropy alloys Hydrogen evolution reaction Water splitting |
| title | FeMnCuNiTi and FeMnCuNiMo: Novel high entropy alloys for green hydrogen production |
| title_full | FeMnCuNiTi and FeMnCuNiMo: Novel high entropy alloys for green hydrogen production |
| title_fullStr | FeMnCuNiTi and FeMnCuNiMo: Novel high entropy alloys for green hydrogen production |
| title_full_unstemmed | FeMnCuNiTi and FeMnCuNiMo: Novel high entropy alloys for green hydrogen production |
| title_short | FeMnCuNiTi and FeMnCuNiMo: Novel high entropy alloys for green hydrogen production |
| title_sort | femncuniti and femncunimo novel high entropy alloys for green hydrogen production |
| topic | Catalytic alloys Electrocatalysis High entropy alloys Hydrogen evolution reaction Water splitting |
| url | http://www.sciencedirect.com/science/article/pii/S294982282500574X |
| work_keys_str_mv | AT andreabrotzu femncunitiandfemncunimonovelhighentropyalloysforgreenhydrogenproduction AT carlalupi femncunitiandfemncunimonovelhighentropyalloysforgreenhydrogenproduction AT danielapilone femncunitiandfemncunimonovelhighentropyalloysforgreenhydrogenproduction |