Modified Scherrer equation to calculate crystal size by XRD with high accuracy, examples Fe2O3, TiO2 and V2O5

A key parameter in the analysis of compounds and the study of their physical, chemical, and mechanical properties is the knowledge of the crystal size. There are two common techniques for determining this size: transmission electron microscopy (TEM) and Brunauer-Emmett-Teller theory (BET). These methods are time-consuming and expensive; thus, the calculation of this size by X-ray diffraction (XRD) is proposed. There are several methods for calculating the crystal size by X-ray diffraction, but not all peaks were considered and the errors were very large. In this study, the Modified Scherrer method is practically explained, and three important rules for obtaining crystal size values with high accuracy are…

• LM
  Lietuvos Mokslo Taryba
• ES
  European Social Fund