Solar synthesis of nanostructured zirconia: microstructural and thermal characterization

Autor: Laura G Ceballos-Mendivil, Yannely Carvajal-Campos, Judith Tánori-Córdova, Jonathan C Luque-Ceballos, Heidi Villafán-Vidales, Claudio A Estrada
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Zdroj: Materials Research Express, Vol 7, Iss 11, p 115014 (2020)
Druh dokumentu: article
ISSN: 2053-1591
DOI: 10.1088/2053-1591/abcbb8
Popis: The use of concentrated solar energy in processing ceramic materials is an attractive route to obtain these materials with low CO _2 emissions. In this work, nanostructures of monoclinic zirconia (m-ZrO _2 ) were obtained using concentrated solar energy provided by the IER-UNAM solar furnace as a heat source. In the first stage of the process, a Zr/O/C complex was obtained by sol-gel method at a temperature of 120 °C using zirconium n-propoxide and sorbitol as precursors reagents. This complex was used in a second stage to obtain m-ZrO _2 by heating it at a temperature of 1200 °C for one hour in air atmosphere. This last stage was performed in a solar furnace. Samples were analyzed by characterization techniques: FT-IR, TGA/DSC, XRD, TEM, and SEM confirming the formation of nanostructures of zirconia in monoclinic phase.
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