Singh, Jitendra Pal Chae, Keun Hwa 2024-01-19T20:31:06Z 2024-01-19T20:31:06Z 2021-09-02 2019-04 2470-1343 https://pubs.kist.re.kr/handle/201004/120162 Herein, we reported nanoparticle growth from the point of view of the local electronic structure by taking MgO as a prototype material. These nanoparticles were obtained from the sol-gel autocombustion process. The precursor formed in this process was annealed for various temperatures ranging from 300 to 1200 degrees C for 0.5 and 1 h. It was observed that the amorphous phase occurred in the material synthesized at an annealing temperature of 300 degrees C for 1 h. This phase transformed to crystalline when the annealing temperature was increased to 350 degrees C. Crystallite size increased with annealing temperature; however, annealing time did not influence the crystallite size. To get deeper insights of modifications occurring at the atomic scale during crystallization growth, the local electronic structure of synthesized materials was investigated by measuring near-edge X-ray absorption fine structure at Mg, O, N, and C Kedges. These results envisaged that Mg2+ ion coordination improved with the increase of annealing temperature. It was also observed that both annealing time and annealing temperature are sensitive to the local electronic structural changes. English AMER CHEMICAL SOC GRAIN-GROWTH ZINC FERRITE IN-SITU COMBUSTION SYNTHESIS OXIDE NANOPARTICLES KINETICS EVOLUTION RAMAN SIZE XRD Local Electronic Structure Perspectives of Nanoparticle Growth: The Case of MgO Article 10.1021/acsomega.9b00262 1 ACS OMEGA, v.4, no.4, pp.7140 - 7150 ACS OMEGA 4 4 7140 7150 scie scopus 000466552500117 2-s2.0-85064663236 Chemistry, Multidisciplinary Chemistry Article GRAIN-GROWTH ZINC FERRITE IN-SITU COMBUSTION SYNTHESIS OXIDE NANOPARTICLES KINETICS EVOLUTION RAMAN SIZE XRD nanoparticle growth local electronic structure MgO near-edge X-ray absorption fine structure