Squeezing Out Nanoparticles from Perovskites: Controlling Exsolution with Pressure
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| dc.contributor.author | López-García, Andrés
|
es_ES |
| dc.contributor.author | Remiro-Buenamañana, Sonia
|
es_ES |
| dc.contributor.author | Neagu, Dragos
|
es_ES |
| dc.contributor.author | Carrillo-Del Teso, Alfonso Juan
|
es_ES |
| dc.contributor.author | Serra Alfaro, José Manuel
|
es_ES |
| dc.date.accessioned | 2024-11-06T19:19:35Z | |
| dc.date.available | 2024-11-06T19:19:35Z | |
| dc.date.issued | 2024-08 | es_ES |
| dc.identifier.issn | 1613-6810 | es_ES |
| dc.identifier.uri | http://hdl.handle.net/10251/211454 | |
| dc.description.abstract | [EN] Nanoparticle exsolution has emerged as a versatile method to functionalize oxides with robust metallic nanoparticles for catalytic and energy applications. By modifying certain external parameters during thermal reduction (temperature, time, reducing gas), some morphological and/or compositional properties of the exsolved nanoparticles can be tuned. Here, it is shown how the application of high pressure (<100 bar H2) enables the control of the exsolution of ternary FeCoNi alloyed nanoparticles from a double perovskite. H2 pressure affects the lattice expansion and the nanoparticle characteristics (size, population, and composition). The composition of the alloyed nanoparticles could be controlled, showing a reversal of the expected thermodynamic trend at 10 and 50 bar, where Fe becomes the main component instead of Ni. In addition, pressure drastically lowers the exsolution temperature to 300 degrees C, resulting in unprecedented highly-dispersed and small-sized nanoparticles with a similar composition to those obtained at 600 degrees C and 10 bar. The mechanisms behind the effects of pressure on exsolution are discussed, involving kinetic, surface thermodynamics, and lattice-strain factors. A volcano-like trend of the exsolution extent suggests that competing pressure-dependent mechanisms govern the process. Pressure emerges as a new design tool for metallic nanoparticle exsolution enabling novel nanocatalysts and surface-functionalized materials. | es_ES |
| dc.description.sponsorship | The project that gave rise to these results received the support of a fellowship from the "la Caixa" Foundation (ID 100010434). The fellowship code is LCF/BQ/PI20/11760015. Financial support by the Spanish Ministry of Science and Innovation (PID2022-139663OB-I00 and CEX2021-001230-S grant funded by MCIN/AEI/10.13039/501100011033) and by Generalitat Valenciana (CIPROM/2022/10) is gratefully acknowledged. The authors thank the support of the Electronic Microscopy Service of the Universitat Politecnica de Valencia. | es_ES |
| dc.language | Inglés | es_ES |
| dc.publisher | John Wiley & Sons | es_ES |
| dc.relation.ispartof | Small | es_ES |
| dc.rights | Reconocimiento - No comercial (by-nc) | es_ES |
| dc.subject | Double perovskites | es_ES |
| dc.subject | Exsolution | es_ES |
| dc.subject | Metallic nanoparticles | es_ES |
| dc.subject | Pressure | es_ES |
| dc.subject | Ternary alloys | es_ES |
| dc.title | Squeezing Out Nanoparticles from Perovskites: Controlling Exsolution with Pressure | es_ES |
| dc.type | Artículo | es_ES |
| dc.identifier.doi | 10.1002/smll.202403544 | es_ES |
| dc.relation.projectID | info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2021-2023/PID2022-139663OB-I00/ES/DESCARBONIZACION DE LA INDUSTRIA DE PROCESOS MEDIANTE LA CATALISIS INTENSIFICADA POR INTEGRACION DE TECNOLOGIAS FACILITADORAS ESENCIALES/ | es_ES |
| dc.relation.projectID | info:eu-repo/grantAgreement/GVA//CIPROM%2F2022%2F10/ | es_ES |
| dc.relation.projectID | info:eu-repo/grantAgreement/Fundació Bancària Caixa d'Estalvis i Pensions de Barcelona//100010434/ | es_ES |
| dc.relation.projectID | info:eu-repo/grantAgreement/Fundació Bancària Caixa d'Estalvis i Pensions de Barcelona//LCF%2FBQ%2FPI20%2F11760015/ | es_ES |
| dc.relation.projectID | info:eu-repo/grantAgreement/AEI//CEX2021-001230-S/ | es_ES |
| dc.rights.accessRights | Abierto | es_ES |
| dc.contributor.affiliation | Universitat Politècnica de València. Instituto Universitario Mixto de Tecnología Química - Institut Universitari Mixt de Tecnologia Química | es_ES |
| dc.description.bibliographicCitation | López-García, A.; Remiro-Buenamañana, S.; Neagu, D.; Carrillo-Del Teso, AJ.; Serra Alfaro, JM. (2024). Squeezing Out Nanoparticles from Perovskites: Controlling Exsolution with Pressure. Small. https://doi.org/10.1002/smll.202403544 | es_ES |
| dc.description.accrualMethod | S | es_ES |
| dc.relation.publisherversion | https://doi.org/10.1002/smll.202403544 | es_ES |
| dc.type.version | info:eu-repo/semantics/publishedVersion | es_ES |
| dc.identifier.pmid | 39180444 | es_ES |
| dc.relation.pasarela | S\527113 | es_ES |
| dc.contributor.funder | Generalitat Valenciana | es_ES |
| dc.contributor.funder | Agencia Estatal de Investigación | es_ES |
| dc.contributor.funder | Fundació Bancària Caixa d'Estalvis i Pensions de Barcelona | es_ES |
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