Autor segons l'article: Mokni I; Badri A; Slimi S; Omri K; Loiko P; Solé RM; Aguiló M; Díaz F; Mateos X; Amara MB
Departament: Química Física i Inorgànica
Autor/s de la URV: Aguiló Díaz, Magdalena / Díaz González, Francisco Manuel / Mateos Ferré, Xavier
Paraules clau: Optical properties Layered structure Electronic structure Crystal-structure Complex phosphates optical properties na mossbauer-spectroscopy layered structure hydration electronic structure chemistry aluminophosphates
Resum: A novel phosphate compound - potassium magnesium-aluminum double phosphate with chemical formula KMgAl(PO4)2 - has been synthesized. Platelet-shaped single crystals have been grown from the flux using K2Mo2O7 as a solvent. The powder form has been obtained through a sol-gel reaction. It has been characterized by X-ray diffraction, differential thermal analysis, vibrational spectroscopy and electronic structure calculations. KMgAl(PO4)2 crystallizes in the trigonal centrosymmetric space group P3¯m1 (No. 164) with unit cell parameters a = b = 5.347(1) Å, c = 7.903(10) Å, γ = 120° (Z = 1). The main characteristic of the crystal is the two-dimensional (2D) lamellar framework formed by Mg|AlO4 and PO4 tetrahedrons sharing their vertices of oxygen atoms, with the K+ cations located within the interlayer space. The sample morphology and chemical composition were revealed by the scanning electron microscopy – energy-dispersive X-ray spectroscopy analysis. The IR spectroscopy of KMgAl(PO4)2 confirmed the existence of a single PO4 group in agreement with the structural study. A relatively large indirect band gap of 3.86 eV was determined.
Àrees temàtiques: Spectroscopy Química Organic chemistry Medicina ii Medicina i Materiais Interdisciplinar Inorganic chemistry Geociências Farmacia Ensino Engenharias iv Engenharias iii Engenharias ii Engenharias i Enfermagem Ciências biológicas iii Ciências biológicas ii Ciências biológicas i Ciências ambientais Ciências agrárias i Ciência de alimentos Ciência da computação Chemistry, physical Biotecnología Biodiversidade Astronomia / física Analytical chemistry
Accès a la llicència d'ús: https://creativecommons.org/licenses/by/3.0/es/
Adreça de correu electrònic de l'autor: magdalena.aguilo@urv.cat xavier.mateos@urv.cat f.diaz@urv.cat
Identificador de l'autor: 0000-0001-6130-9579 0000-0003-1940-1990 0000-0003-4581-4967
Data d'alta del registre: 2024-10-19
Versió de l'article dipositat: info:eu-repo/semantics/acceptedVersion
Enllaç font original: https://www.sciencedirect.com/science/article/abs/pii/S002228602101663X
URL Document de llicència: https://repositori.urv.cat/ca/proteccio-de-dades/
Referència a l'article segons font original: Journal Of Molecular Structure. 1248
Referència de l'ítem segons les normes APA: Mokni I; Badri A; Slimi S; Omri K; Loiko P; Solé RM; Aguiló M; Díaz F; Mateos X; Amara MB (2022). Synthesis and characterization of a novel alkali mixed magnesium-aluminum phosphate with a layered structure–KMgAl(PO4)2. Journal Of Molecular Structure, 1248(), -. DOI: 10.1016/j.molstruc.2021.131535
DOI de l'article: 10.1016/j.molstruc.2021.131535
Entitat: Universitat Rovira i Virgili
Any de publicació de la revista: 2022
Tipus de publicació: Journal Publications
Repositori URV