Listar por autoría "4cd218a5-684d-42ed-b2cc-586058014f90"
Mostrando ítems 1-13 de 13
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A new series of environment-friendly reddish inorganic pigments based on AFeO3 (A = Ln, Y) with high NIR solar reflectance
Fortuño-Morte, Maria; Serna-Gallén, Pablo; Beltrán Mir, Héctor; Cordoncillo, Eloisa Elsevier (2021-02-11)Environment-friendly pigments based onAFeO3(A¼La, Pr, Nd, Sm, Gd, Tb, Y or Yb) with high near-infrared (NIR) reflectance were synthesised by a coprecipitation method at 1200 C. The Rietveldrefinement analysis showed ... -
A site-selective fluorescence spectroscopy study of the crystal phases of KY3F10: Leveraging the optical response of Eu3+ ions
Serna-Gallén, Pablo; Beltrán Mir, Héctor; Cordoncillo, Eloisa; Balda, Rolindes; Fernández-León, Joaquín Elsevier (2023-04-18)The present work deals with the investigation of the site-selective symmetries in Eu3+-doped KY3F10 with different crystal phases. Employing time-resolved fluorescence line-narrowing (TRFLN), a study of the luminescent ... -
A way to understand the solid-state chemistry for high level education students: the case of a ceramic pigment
Torresi, Stefano; Bou Gil, Alberto; D´Anna, Mauro; Escámez Gutiérrez, Pedro; Peña Recuenco, Natividad; Chouli, Sabrine; Serna-Gallén, Pablo; Beltrán Mir, Héctor; Cordoncillo, Eloisa International Academy of Technology, Education and Development (IATED) (2020-07-06)The design of undergraduate laboratory sessions that provide meaningful research-based experiences enhances undergraduate curricula and prepares future graduate students for research careers. Solid-State Chemistry has ... -
Kinetics or thermodynamics? Extolling their role to modulate the crystal phases and luminescence of KY3F10:Eu3+ powders
Serna-Gallén, Pablo; Beltrán Mir, Héctor; Cordoncillo, Eloisa Royal Society of Chemistry (2023-09-28)KY3F10, a fluoride compound with two polymorphs (alpha and delta), has been a subject of study due to its unique properties. Obtaining the metastable delta-phase has been challenging, but this study presents an enhanced ... -
“MasterChemist”: A Novel Strategy for Reviewing Stoichiometry and Introducing Molecular Gastronomy to Chemistry Students
Serna-Gallén, Pablo; Fortuño-Morte, Maria; Beltrán Mir, Héctor; Cordoncillo, Eloisa American Chemical Society and Division of Chemical Education, Inc. (2022-09-06)This article presents and discusses the results of an educational innovation that seeks to introduce the world of molecular gastronomy in chemistry lessons as a means to review stoichiometry and offer an alternative way ... -
Optical smoke detector: an approach to semiconductors field for high level education students
Porcar García, Samuel; González Cuadra, Jaime; Mateu-Campos, Juanjo; Serna-Gallén, Pablo; Fortuño-Morte, Maria; Beltrán Mir, Héctor; Cordoncillo, Eloisa International Academy of Technology, Education and Development (IATED) (2019-06-01)Nowadays, it is undeniable that the amount of technological devices is having a sharp increase all around us, with important benefits and repercussions for the society. Despite this, students are not used to knowing the ... -
Practical guidance for easily interpreting the emission and physicochemical parameters of Eu3+ in solid-state hosts
Serna-Gallén, Pablo; Beltrán Mir, Héctor; Cordoncillo, Eloisa Elsevier (2023)Materials doped with the luminescent Eu3+ ion are attracting an ever-increasing amount of attention due to their potential applications in solid-state lighting, display devices, solar cells, or bioanalytics. But, why Eu3+? ... -
Site-selective symmetries of Eu3+-doped BaTiO3 ceramics: a structural elucidation by optical spectroscopy
Serna-Gallén, Pablo; Beltrán Mir, Héctor; Cordoncillo, Eloisa; West, Anthony R.; Balda, Rolindes; FERNANDEZ RODRIGUEZ, JOAQUIN MANUEL Royal Society of Chemistry (2019-10-22)Eu3+-Doped BaTiO3 ceramics with dopant contents between 0 and 10 mol% were prepared by sol–gel synthesis based on the nominal compositions (Ba1−3xEu2x)TiO3 and Ba(Ti1−xEux)O3−x/2, where two possible substitution mechanisms ... -
The influence of Ca2+ and Zn2+ doping on the development of sustainable pigments based on GdFeO3 perovskite: From a reddish colour towards a pure black
Fortuño-Morte, Maria; Serna-Gallén, Pablo; Beltrán Mir, Héctor; Cordoncillo, Eloisa Elsevier (2022-04-14)Black pigments are very commonly used and arouse widespread interest in the ceramic industry. Nevertheless, these pigments contain toxic elements that are detrimental to human health. In view of this, the present work is ... -
The pH-dependent reactions in the sonochemical synthesis of luminescent fluorides: The quest for the formation of KY3F10 crystal phases
Serna-Gallén, Pablo; Beltrán Mir, Héctor; Cordoncillo, Eloisa Elsevier (2022-06)In this study Eu3+-doped yttrium fluorides were designed by ultrasound-assisted processes at different pH values (4.0-9.0). This novel strategy has enabled to obtain materials with intriguing morphologies and modulated ... -
The unexplored δ-phase of KY3F10: toward novel Eu3+-doped nanoplates with a ‘super-diamond’ structure for optical applications
Serna-Gallén, Pablo; Beltrán Mir, Héctor; Cordoncillo, Eloisa Elsevier (2021-12-07)This article describes a new, simple, and high-yield method based on a sonochemical process for obtaining the δ-KY3F10·xH2O compound with a ‘super-diamond’ structure, a material that has been completely neglected in the ... -
Tuning the optical and photoluminescence properties of high efficient Eu3+ -doped KY3F10 phosphors by different synthetic approaches
Serna-Gallén, Pablo; Beltrán Mir, Héctor; Cordoncillo, Eloisa Elsevier (2021)Eu3+-doped KY3F10 materials with a dopant content between 0 and 5 mol% were prepared based on the nominal composition K(Y3-xEux)F10 using different synthetic routes. The reaction conditions have been proven to be critical ... -
Unraveling the superior role of dicarboxylic acids as surface chelators in Eu3+-doped yttrium fluorides: A systematic modulation of the crystal phases and morphologies for highly tuned optical performance
Serna-Gallén, Pablo; Beltrán Mir, Héctor; Cordoncillo, Eloisa Elsevier (2021-06-16)Eu3+-doped YF3 and KY3F10 phosphors have been prepared hydrothermally in a wide range of pH values without the use of surface chelators and adding oxalic or tartaric acid. We have proved, for the first time, the usefulness ...