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3D-NanoREV: 3D environmental studies of the microstructure engineering of vanadate-based phosphors at the nanoscale

Grant number: 22/03442-3
Support Opportunities:Regular Research Grants
Duration: December 01, 2022 - November 30, 2026
Field of knowledge:Physical Sciences and Mathematics - Chemistry - Inorganic Chemistry
Convênio/Acordo: ANR
Principal Investigator:Paulo Cesar de Sousa Filho
Grantee:Paulo Cesar de Sousa Filho
Principal researcher abroad: Thierry Gacoin
Institution abroad: École Polytechnique, France
Host Institution: Instituto de Química (IQ). Universidade Estadual de Campinas (UNICAMP). Campinas , SP, Brazil
Associated researchers:René Alfonso Nome Silva

Abstract

Rare earth vanadates are classic luminescent materials that remain as ubiquitous host lattices for ultraviolet- to near infrared excited thermal and chemical sensing, and for enzyme-like catalytic activity. The compositional, redox and microstructural richness of nanosized rare earth vanadates (NanoREV) enable not only the design of novel multifunctional materials but also to set new insights on solid-state and crystallisation mechanisms at the nanoscale. In situ 3D studies under controlled temperature and atmosphere via transmission electron microscopy (TEM) consist in a powerful approach for an in-depth analysis of morphological, structural, and chemical information, which can be further expanded to manipulate the properties of other promising classes of inorganic materials. Therefore, 3D-NanoREV will be focused on fundamental understanding of crystallisation, aggregation, and nanovoiding processes to precisely control the surface and structural engineering of inorganic nanoparticles by combining chemical synthesis, advanced TEM techniques, and theoretical simulations. Using rare earth vanadates as both model and target systems, we aim to upscale mechanisms and in situ observations to laboratory conditions to achieve a rational design of particle properties. The nanoscale behaviour of the vanadate nanoparticles will be analysed in parallel with optical information arising from lanthanide spectroscopy and with the ensemble-like structural properties observed in laboratory conditions to design functional materials for new emerging applications in thermometry, chemical sensing, and catalysis. (AU)

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Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
PERRELLA, RAFAEL VIEIRA; MOHAMMEDI, RABEI; KUHNER, ROBIN; CARDONE, CHRISTOPHE; LARQUET, ERIC; ALEXANDROU, ANTIGONI; DE SOUSA FILHO, PAULO CESAR; GACOIN, THIERRY. Simple Postsynthesis Thermal Treatment toward High Luminescence Performance of Rare Earth Vanadate Nanoparticles. Crystal Growth & Design, v. 23, n. 8, p. 8-pg., . (19/23398-6, 17/19909-0, 22/03442-3)
BRITO, MILENA LIMA; HUBAND, STEVEN; WALKER, MARC; WALTON, RICHARD I.; FILHO, PAULO C. DE SOUSA. Nanoporous YVO4 as a luminescent host for probing molecular encapsulation. CHEMICAL COMMUNICATIONS, v. 59, n. 76, p. 4-pg., . (18/08334-9, 22/03442-3)

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