| Naslov: | Ferroelectric ▫$KNbO_3$▫ nanoplatelets for thermally driven pyrocatalytic hydrogen evolution and dye degradation |
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| Avtorji: | ID Touili, Salma (Avtor)
ID Asbani, Bouchra (Avtor)
ID Hadouch, Youness, Institut "Jožef Stefan" (Avtor)
ID Suban, Nejc, Institut "Jožef Stefan" (Avtor)
ID Uršič Nemevšek, Hana, Institut "Jožef Stefan" (Avtor)
ID Kutnjak, Zdravko, Institut "Jožef Stefan" (Avtor)
ID Rožič, Brigita, Institut "Jožef Stefan" (Avtor)
ID El Marssi, Mimoun (Avtor) |
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| Datoteke: |  URL - Izvorni URL, za dostop obiščite https://www.sciencedirect.com/science/article/pii/S0016236125024305?via%3Dihub
 PDF - Predstavitvena datoteka, prenos (7,88 MB)
MD5: 2E1032C4592333F13F5732597A9B30A0
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| Jezik: | Angleški jezik |
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| Tipologija: | 1.01 - Izvirni znanstveni članek |
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| Organizacija: |  IJS - Institut Jožef Stefan
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| Povzetek: | Day and night shift-induced thermal cycling offers a promising route toward free energy for green hydrogen production and dye degradation. Pyroelectric materials make this possible by converting temperature fluctuations into electrical charges that drive water splitting catalytic reactions and produce hydrogen fuel. Herein, we demonstrate an efficient pyrocatalytic hydrogen evolution reaction and Rhodamine B (RhB) degradation using ferroelectric potassium niobate (KNbO3) perovskite nanoplatelets (KN-np) with an orthorhombic phase. Under thermal cycling between 20 and 50 °C, KN-np produced a high hydrogen yield of 680 μmol·g–1 over 30 thermal cycles, with an average hydrogen generation rate of approximately 22.67 μmol g–1 per thermal cycle. Besides, KN-np pyrocatalytic activity enabled efficient degradation of the RhB dye up to 84 % after only 16 cycles with a high kinetic rate constant of 0.11 per thermal cycle. Our findings show that the excellent pyroelectric properties of KN-np are at the origin of the catalytic activity enhancement. This work lays the foundation for the future design of pyroelectric materials for clean energy production and environmental remediation. |
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| Ključne besede: | pyrocatalysis, nanoplatelets, clean energy production, dye degradation |
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| Status publikacije: | Objavljeno |
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| Verzija publikacije: | Objavljena publikacija |
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| Poslano v recenzijo: | 30.04.2025 |
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| Datum sprejetja članka: | 01.09.2025 |
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| Datum objave: | 05.09.2025 |
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| Založnik: | Elsevier |
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| Leto izida: | 2026 |
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| Št. strani: | str. 1-13 |
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| Številčenje: | Vol. 405, pt. C, [article no.] 136705 |
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| Izvor: | Nizozemska |
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| PID: | 20.500.12556/DiRROS-25343  |
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| UDK: | 544.5/.6 |
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| ISSN pri članku: | 1873-7153 |
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| DOI: | 10.1016/j.fuel.2025.136705 |
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| COBISS.SI-ID: | 248246531 |
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| Avtorske pravice: | © 2025 The Author(s). |
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| Opomba: | Nasl. z nasl. zaslona;
Soavtorji: Nejc Suban, Hana Uršič, Zdravko Kutnjak, Brigita Rožič;
Opis vira z dne 9. 9. 2025;
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| Datum objave v DiRROS: | 16.01.2026 |
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| Število ogledov: | 157 |
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| Število prenosov: | 69 |
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| Metapodatki: |    |
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