2026-04-17T07:42:39Zhttps://recercat.cat/oai/request
oai:recercat.cat:10256/159292024-06-18T11:50:23Zcom_2072_452955com_2072_2054col_2072_453063
RECERCAT author Gómez Núñez, Alberto author Alonso Gil, Santiago author López, Concepción author Roura Grabulosa, Pere author Vilà, Anna 2024-06-18T11:50:23Z 2024-06-18T11:50:23Z 2017-10-10 http://hdl.handle.net/10256/15929 This work presents a detailed structural and chemical characterization of the system formed by zinc acetate dihydrate (ZAD) and ethanolamine (EA) with methoxyethanol (ME), in order to describe its stability. The origin of the mixture degradation during storage at room conditions is analyzed. Complementary computational (or theoretical) DFT calculations on the precursor formed in this reaction in ME and those of EA (free or in the same solvent) and in the presence or absence of CO2, light, or both simultaneously are also reported in order to clarify the relative weight of these factors in the degradation process. In all cases, the models were tested as potential energy minimum, and their photoabsorption spectra were simulated. The calculations show that the monomeric species formed in this process tend to assemble into dimers, which are more photosensitive and reactive than the monomer. Our results explain the experimental observations and provide a better understanding of the role played by EA, ME, and CO2in the formation of ZnO and, consequently, allow for the optimization of the technological processes used to prepare these films Tots els drets reservats info:eu-repo/semantics/openAccess Funcional de densitat, Teoria del Density functionals Etanolamines Ethanolamines DEM Materials nanoestructurats Nanostructured materials Role of Ethanolamine on the Stability of a Sol-Gel ZnO Ink info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion peer-reviewed