High-entropy alloys: Electrochemical Nanoarchitectonics toward high-performance Water splitting
High-entropy alloys (HEAs) offer unprecedented catalytic properties over single-composition nanoparticles or single atom engineered materials. Traditionally, the Hume–Rothery rule suggests that only size-and-structure similar elements can be mixed in conventional alloying, which limits the possible...
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Elsevier
2025-04-01
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| Series: | Electrochemistry Communications |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S1388248125000189 |
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| author | Christian Iffelsberger Katarina A. Novčić Eva Kolíbalová Frank-Michael Matysik Martin Pumera |
| author_facet | Christian Iffelsberger Katarina A. Novčić Eva Kolíbalová Frank-Michael Matysik Martin Pumera |
| author_sort | Christian Iffelsberger |
| collection | DOAJ |
| description | High-entropy alloys (HEAs) offer unprecedented catalytic properties over single-composition nanoparticles or single atom engineered materials. Traditionally, the Hume–Rothery rule suggests that only size-and-structure similar elements can be mixed in conventional alloying, which limits the possible combinations of alloying elements. Here we propose an electrochemical approach as an innovative and alternative synthetic method for preparation of HEAs. Upon an electric arch by applying voltage drop of about 2 MV/m with high current densities and using ultra-thin Pt wire in glass, whose movement, in the aqueous solution containing the salt of the elements to be incorporated to the HEAs, is controlled by the scanning electrochemical microscope (SECM), the HEAs, consisting of doped silica nanobeads are produced. The composition of such HEAs depends on the materials and solution used in their preparation and thus it contains Pt, Si, Al, Ca, K, Cl, Mn, Zn, Na, N, Mo, and S. This new approach is compatible with ambient air and aqueous solution processes and is not limited by material selection, presenting a significant advancement in the synthesis of functional nanomaterials. The findings underline the potential of these high-entropy nanostructured materials in advancing the efficiency of industrial processes, particularly in the realm of green hydrogen production through water splitting. This simple, low-voltage, room temperature process is suitable for fabrication of HEAs of various composition and has the applicability to wide spectra of catalytic reactions. |
| format | Article |
| id | doaj-art-5515fbb3954c42bbb1932e76f052a19a |
| institution | Kabale University |
| issn | 1388-2481 |
| language | English |
| publishDate | 2025-04-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Electrochemistry Communications |
| spelling | doaj-art-5515fbb3954c42bbb1932e76f052a19a2025-02-06T05:11:13ZengElsevierElectrochemistry Communications1388-24812025-04-01173107879High-entropy alloys: Electrochemical Nanoarchitectonics toward high-performance Water splittingChristian Iffelsberger0Katarina A. Novčić1Eva Kolíbalová2Frank-Michael Matysik3Martin Pumera4Future Energy and Innovation Laboratory, Central European Institute of Technology, Brno University of Technology, Purkyňova 123, Brno 61200, Czech RepublicFuture Energy and Innovation Laboratory, Central European Institute of Technology, Brno University of Technology, Purkyňova 123, Brno 61200, Czech RepublicCentral European Institute of Technology, Brno University of Technology, Purkyňova 123, Brno 61200, Czech RepublicInstitute of Analytical Chemistry, Chemo- and Biosensors, University of Regensburg, Universitätsstr. 31, 93053 Regensburg, GermanyFuture Energy and Innovation Laboratory, Central European Institute of Technology, Brno University of Technology, Purkyňova 123, Brno 61200, Czech Republic; Advanced Nanorobots & Multiscale Robotics Laboratory, Faculty of Electrical Engineering and Computer Science, VSB - Technical University of Ostrava, 17. listopadu 2172/15, 708 00 Ostrava, Czech Republic; Energy Research Institute@NTU (ERI@N), Research Techno Plaza, X-Frontier Block, Level 5, 50 Nanyang Drive, 637553 Singapore, Singapore; Department of Medical Research, China Medical University Hospital, Medical University, No. 91 Hsueh-Shih Road, Taichung 4040, China; Corresponding author at: Future Energy and Innovation Laboratory, Central European Institute of Technology, Brno University of Technology, Purkyňova 123, Brno 61200, Czech Republic.High-entropy alloys (HEAs) offer unprecedented catalytic properties over single-composition nanoparticles or single atom engineered materials. Traditionally, the Hume–Rothery rule suggests that only size-and-structure similar elements can be mixed in conventional alloying, which limits the possible combinations of alloying elements. Here we propose an electrochemical approach as an innovative and alternative synthetic method for preparation of HEAs. Upon an electric arch by applying voltage drop of about 2 MV/m with high current densities and using ultra-thin Pt wire in glass, whose movement, in the aqueous solution containing the salt of the elements to be incorporated to the HEAs, is controlled by the scanning electrochemical microscope (SECM), the HEAs, consisting of doped silica nanobeads are produced. The composition of such HEAs depends on the materials and solution used in their preparation and thus it contains Pt, Si, Al, Ca, K, Cl, Mn, Zn, Na, N, Mo, and S. This new approach is compatible with ambient air and aqueous solution processes and is not limited by material selection, presenting a significant advancement in the synthesis of functional nanomaterials. The findings underline the potential of these high-entropy nanostructured materials in advancing the efficiency of industrial processes, particularly in the realm of green hydrogen production through water splitting. This simple, low-voltage, room temperature process is suitable for fabrication of HEAs of various composition and has the applicability to wide spectra of catalytic reactions.http://www.sciencedirect.com/science/article/pii/S1388248125000189Scanning electrochemical microscopyHydrogen evolution reactionNanocompositeHigh entropy alloys |
| spellingShingle | Christian Iffelsberger Katarina A. Novčić Eva Kolíbalová Frank-Michael Matysik Martin Pumera High-entropy alloys: Electrochemical Nanoarchitectonics toward high-performance Water splitting Electrochemistry Communications Scanning electrochemical microscopy Hydrogen evolution reaction Nanocomposite High entropy alloys |
| title | High-entropy alloys: Electrochemical Nanoarchitectonics toward high-performance Water splitting |
| title_full | High-entropy alloys: Electrochemical Nanoarchitectonics toward high-performance Water splitting |
| title_fullStr | High-entropy alloys: Electrochemical Nanoarchitectonics toward high-performance Water splitting |
| title_full_unstemmed | High-entropy alloys: Electrochemical Nanoarchitectonics toward high-performance Water splitting |
| title_short | High-entropy alloys: Electrochemical Nanoarchitectonics toward high-performance Water splitting |
| title_sort | high entropy alloys electrochemical nanoarchitectonics toward high performance water splitting |
| topic | Scanning electrochemical microscopy Hydrogen evolution reaction Nanocomposite High entropy alloys |
| url | http://www.sciencedirect.com/science/article/pii/S1388248125000189 |
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