A comparison of TEM and DLS methods to characterize size distribution of ceramic nanoparticles

8th Brazilian Congress on Metrology

Souza, T.G.F.^1 ; Ciminelli, V.S.T.^2 ; Mohallem, N.D.S.^3

Graduate Program on Metallurgical, Materials and Mining Engineering, UFMG, Brazil^1

Department of Metallurgical and Materials Engineering, UFMG, Brazil^2

Chemistry Department, Universidade Federal de Minas Gerais, Belo Horizonte

CEP 31270-901, Brazil^3

关键词: Ceramic nanoparticles;    Dispersants;    Number distribution;    Particle sizing;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/733/1/012039/pdf
DOI  :  10.1088/1742-6596/733/1/012039

来源: IOP

【 摘 要 】

The accuracy of dynamic light scattering (DLS) measurements are compared with transmission electron microscopy (TEM) studies for characterization of size distributions of ceramic nanoparticles. It was found that measurements by DLS using number distribution presented accurate results when compared to TEM. The presence of dispersants and the enlargement of size distributions induce errors to DLS particle sizing measurements and shifts its results to higher values.