2025-11-252025-11-252025-03-25PUREZA NETO, Domingos dos Santos; SILVA, Erik Silva da. Tutorial de utilização do GSAS II e IMAGEJ: estudo de caso utilizando nanoparticulas de níquel. Orientadora: Cleidilane Sena Costa. 2025. 78 f. Trabalho de Curso (Licenciatura em Física) – Faculdade de Ciências Exatas e Tecnologia, Campus Universitário de Abaetetuba, Universidade Federal do Pará, Abaetetuba, 2025. Disponível em: https://bdm.ufpa.br/handle/prefix/8838. Acesso em:.https://bdm.ufpa.br/handle/prefix/8838Nanomaterials have gained increasing prominence in science not only because of their electrical, magnetic and catalytic properties, but also because of their wide range of applications in areas such as electronics, biomedicine, cosmetics and the aerospace industry. Among these materials, nickel stands out for its low production cost and satisfactory performance compared to noble metals. In this work, Nickel nanoparticles coated with an organic material (palm kernel oil) were synthesized using the thermal decomposition method, which stands out for its ease in controlling the size and composition of the particles. The characterization was carried out using X-ray diffraction (XRD) and transmission electron microscopy (TEM), using well-known programs such as GSAS-II, Origin, ImageJ, VESTA and Excel, with the aim of presenting an accessible and straightforward tutorial on the use of these tools in the analysis and refinement of nanoparticles. The particles were obtained by heating nickel II acetylacetonate [Ni(acac)₂] in the presence of octanediol, diphenyl ether, oleylamine and palm kernel oil under a nitrogen atmosphere for three hours and then cooling the solution naturally. The XRD data was refined using the Rietveld method, revealing that the nanoparticles have two crystallographic phases: face-centered cubic (FCC) and hexagonal compact (HCP), with an average crystallite size of around 117.88 nm. The MET images showed a spherical morphology with an average diameter of 78 nm, surrounded by organic material, indicating potential applications in the technology, cosmetics and biomedical industries.Acesso AbertoNanopartículasDecomposição térmicaGSAS IIIMAGEJNanoparticlesThermal decompositionCNPQ::CIENCIAS EXATAS E DA TERRA::FISICA::FISICA DAS PARTICULAS ELEMENTARES E CAMPOSTrabalho de Curso - Graduação - MonografiaAttribution 3.0 Brazil