RT info:eu-repo/semantics/article T1 From urea to melamine cyanurate: Study of a class of thermal condensation routes for the preparation of graphitic carbon nitride A1 Chamorro Posada, Pedro A1 Dante, Roberto C. A1 Vázquez Cabo, José A1 Dante, Denisse G. A1 Martín Ramos, Pablo A1 Rubiños López, Óscar A1 Sánchez Arévalo, Francisco M. K1 Carbon nitride K1 Nitruro de carbono K1 Luminescence properties K1 Propiedades luminiscentes K1 Melamine cyanurate K1 Cianurato de melamina AB This work presents a survey of the intermediates in the well-known thermal synthesis of graphitic carbon nitride from urea. The analysis of the crystalline phases depicts a successive transformation of the precursor into different substances previously used as starting reactants, whereby melamine cyanurate arises as the ultimate precursor of a class of thermal condensation routes to obtain graphitic carbon nitride. The study of the optical properties of the synthesized materials evidences the simultaneous production of an amorphous phase with a significant presence of melon oligomers. These results are also supported by the further characterization of the materials performed using THz-TDS, FT-IR, HRTEM, and XPS techniques, and by theoretical studies conducted using semi-empirical quantum chemistry methods. PB Elsevier SN 0022-4596 YR 2022 FD 2022 LK https://uvadoc.uva.es/handle/10324/52513 UL https://uvadoc.uva.es/handle/10324/52513 LA eng NO Journal of Solid State Chemistry, 2022, vol. 310, 123071 NO Producción Científica DS UVaDOC RD 22-nov-2024