Nanoporous CuAuPtPd Quasi-High-Entropy Alloy Prism Arrays for Sustainable Electrochemical Nitrogen Reduction
Electrochemical nitrogen reduction reaction (NRR) has emerged as a promising approach for sustainable ammonia synthesis under ambient conditions, offering a low-energy alternative to the traditional Haber–Bosch process. However, the development of efficient and sustainable electrocatalysts for NRR r...
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MDPI AG
2025-05-01
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| author | Shuping Hou Ziying Meng Weimin Zhao Zhifeng Wang |
| author_facet | Shuping Hou Ziying Meng Weimin Zhao Zhifeng Wang |
| author_sort | Shuping Hou |
| collection | DOAJ |
| description | Electrochemical nitrogen reduction reaction (NRR) has emerged as a promising approach for sustainable ammonia synthesis under ambient conditions, offering a low-energy alternative to the traditional Haber–Bosch process. However, the development of efficient and sustainable electrocatalysts for NRR remains a significant challenge. Noble metals, known for their exceptional chemical stability under electrocatalytic conditions, have garnered considerable attention in this field. In this study, we report the successful synthesis of nanoporous CuAuPtPd quasi-high-entropy alloy (quasi-HEA) prism arrays through “melt quenching” and “dealloying” techniques. The as-obtained alloy demonstrates remarkable performance as an NRR electrocatalyst, achieving an impressive ammonia synthesis rate of 17.5 μg h<sup>−1</sup> mg<sup>−1</sup> at a potential of −0.2 V vs. RHE, surpassing many previously reported NRR catalysts. This work not only highlights the potential of quasi-HEAs as advanced NRR electrocatalysts but also provides valuable insights into the design of nanoporous multicomponent materials for sustainable energy and catalytic applications. |
| format | Article |
| id | doaj-art-d96c6095713c445bac5563bf5ae51b2b |
| institution | DOAJ |
| issn | 2075-4701 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | MDPI AG |
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| series | Metals |
| spelling | doaj-art-d96c6095713c445bac5563bf5ae51b2b2025-08-20T03:14:32ZengMDPI AGMetals2075-47012025-05-0115556810.3390/met15050568Nanoporous CuAuPtPd Quasi-High-Entropy Alloy Prism Arrays for Sustainable Electrochemical Nitrogen ReductionShuping Hou0Ziying Meng1Weimin Zhao2Zhifeng Wang3School of Information Engineering, Tianjin University of Commerce, Tianjin 300134, China“The Belt and Road Initiative” Advanced Materials International Joint Research Center of Hebei Province, School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300401, China“The Belt and Road Initiative” Advanced Materials International Joint Research Center of Hebei Province, School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300401, China“The Belt and Road Initiative” Advanced Materials International Joint Research Center of Hebei Province, School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300401, ChinaElectrochemical nitrogen reduction reaction (NRR) has emerged as a promising approach for sustainable ammonia synthesis under ambient conditions, offering a low-energy alternative to the traditional Haber–Bosch process. However, the development of efficient and sustainable electrocatalysts for NRR remains a significant challenge. Noble metals, known for their exceptional chemical stability under electrocatalytic conditions, have garnered considerable attention in this field. In this study, we report the successful synthesis of nanoporous CuAuPtPd quasi-high-entropy alloy (quasi-HEA) prism arrays through “melt quenching” and “dealloying” techniques. The as-obtained alloy demonstrates remarkable performance as an NRR electrocatalyst, achieving an impressive ammonia synthesis rate of 17.5 μg h<sup>−1</sup> mg<sup>−1</sup> at a potential of −0.2 V vs. RHE, surpassing many previously reported NRR catalysts. This work not only highlights the potential of quasi-HEAs as advanced NRR electrocatalysts but also provides valuable insights into the design of nanoporous multicomponent materials for sustainable energy and catalytic applications.https://www.mdpi.com/2075-4701/15/5/568nanoporousquasi-high-entropy alloysprecious metalselectrocatalystsdealloying |
| spellingShingle | Shuping Hou Ziying Meng Weimin Zhao Zhifeng Wang Nanoporous CuAuPtPd Quasi-High-Entropy Alloy Prism Arrays for Sustainable Electrochemical Nitrogen Reduction Metals nanoporous quasi-high-entropy alloys precious metals electrocatalysts dealloying |
| title | Nanoporous CuAuPtPd Quasi-High-Entropy Alloy Prism Arrays for Sustainable Electrochemical Nitrogen Reduction |
| title_full | Nanoporous CuAuPtPd Quasi-High-Entropy Alloy Prism Arrays for Sustainable Electrochemical Nitrogen Reduction |
| title_fullStr | Nanoporous CuAuPtPd Quasi-High-Entropy Alloy Prism Arrays for Sustainable Electrochemical Nitrogen Reduction |
| title_full_unstemmed | Nanoporous CuAuPtPd Quasi-High-Entropy Alloy Prism Arrays for Sustainable Electrochemical Nitrogen Reduction |
| title_short | Nanoporous CuAuPtPd Quasi-High-Entropy Alloy Prism Arrays for Sustainable Electrochemical Nitrogen Reduction |
| title_sort | nanoporous cuauptpd quasi high entropy alloy prism arrays for sustainable electrochemical nitrogen reduction |
| topic | nanoporous quasi-high-entropy alloys precious metals electrocatalysts dealloying |
| url | https://www.mdpi.com/2075-4701/15/5/568 |
| work_keys_str_mv | AT shupinghou nanoporouscuauptpdquasihighentropyalloyprismarraysforsustainableelectrochemicalnitrogenreduction AT ziyingmeng nanoporouscuauptpdquasihighentropyalloyprismarraysforsustainableelectrochemicalnitrogenreduction AT weiminzhao nanoporouscuauptpdquasihighentropyalloyprismarraysforsustainableelectrochemicalnitrogenreduction AT zhifengwang nanoporouscuauptpdquasihighentropyalloyprismarraysforsustainableelectrochemicalnitrogenreduction |