Laser-induced high-entropy alloys as long-duration bifunctional electrocatalysts for seawater splitting

Simple item page
dc.citation.firstpage8670en_US
dc.citation.issueNumber22en_US
dc.citation.journalTitleEnergy & Environmental Scienceen_US
dc.citation.lastpage8682en_US
dc.citation.volumeNumber17en_US
dc.contributor.authorXie, Yunchaoen_US
dc.contributor.authorXu, Shichenen_US
dc.contributor.authorMeng, Andrew C.en_US
dc.contributor.authorZheng, Bujingdaen_US
dc.contributor.authorChen, Zhenruen_US
dc.contributor.authorTour, James M.en_US
dc.contributor.authorLin, Jianen_US
dc.contributor.orgNanoCarbon Center;Rice Advanced Materials Instituteen_US
dc.date.accessioned2025-01-09T20:17:00Zen_US
dc.date.available2025-01-09T20:17:00Zen_US
dc.date.issued2024en_US
dc.description.abstractElectrocatalytic seawater splitting has garnered significant attention as a promising approach for eco-friendly, large-scale green hydrogen production. Development of high-efficiency and cost-effective electrocatalysts remains a frontier in this field. Herein, we report a rapid in situ synthesis of FeNiCoCrRu high-entropy alloy nanoparticles (HEA NPs) by direct CO2 laser induction of metal precursors on carbon paper under ambient conditions. Due to the induced ultrahigh temperature and ultrafast heating/quenching rates, FeNiCoCrRu HEA NPs with sizes ranging from 5 to 40 nm possess uniform phase homogeneity. FeNiCoCrRu HEA NPs exhibit exceptional bifunctional electrocatalytic activities, delivering overpotentials of 0.148 V at 600 mA cm−2 for the hydrogen evolution reaction and 0.353 V at 300 mA cm−2 for the oxygen evolution reaction in alkaline seawater. When assembled FeNiCoCrRu HEA NPs to an electrolyzer, it shows a negligible voltage increase at 250 mA cm−2 even after over 3000-hour operation. This superior performance can be attributed to the high-entropy design, large electrochemical specific area, and excellent chemical and structural stability. An operando Raman spectroscopy study discloses that the Ni and Ru sites serve as active sites for hydrogen evolution, while the Ni site acts as an active site for oxygen evolution. This work demonstrates a laser-induced eco-friendly nanomaterial synthesis. The systematic studies offer an in-depth understanding of HEA design and its correlation with high-efficiency seawater splitting.en_US
dc.identifier.citationXie, Y., Xu, S., C. Meng, A., Zheng, B., Chen, Z., M. Tour, J., & Lin, J. (2024). Laser-induced high-entropy alloys as long-duration bifunctional electrocatalysts for seawater splitting. Energy & Environmental Science, 17(22), 8670–8682. https://doi.org/10.1039/D4EE01093Ken_US
dc.identifier.digitald4ee01093ken_US
dc.identifier.doihttps://doi.org/10.1039/D4EE01093Ken_US
dc.identifier.urihttps://hdl.handle.net/1911/118125en_US
dc.language.isoengen_US
dc.publisherRoyal Society of Chemistryen_US
dc.rightsExcept where otherwise noted, this work is licensed under a Creative Commons Attribution-NonCommercial (CC BY-NC) license. Permission to reuse, publish, or reproduce the work beyond the terms of the license or beyond the bounds of fair use or other exemptions to copyright law must be obtained from the copyright holder.en_US
dc.rights.urihttps://creativecommons.org/licenses/by-nc/3.0/en_US
dc.titleLaser-induced high-entropy alloys as long-duration bifunctional electrocatalysts for seawater splittingen_US
dc.typeJournal articleen_US
dc.type.dcmiTexten_US
dc.type.publicationpublisher versionen_US
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
d4ee01093k.pdf
Size:
3.6 MB
Format:
Adobe Portable Document Format
Download
Collections
Faculty Publications
Chemistry Publications
Computer Science Publications
Materials Science and NanoEngineering Publications