From TPR profiles and XRD patterns of Fe3O4 catalysts, some conclusions can be drawn about the catalyst preparation procedure and expected activity. Concerning the prereduced-passivated catalysts, TPR and XRD experiments demonstrate the presence of residual magnetite in some commercial samples, while ...
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The XRD patterns of the as-prepared products were investigated?via a Bruker powder diffraction system (model D8 Advanced),?using Cu K? (?=1.5406 ?) as the radiation source between 20o and 90o at the operating voltage of?40 kV and a scan rate of 6o min?1 in steps of 0.01o/min. ...
Graph represents the XRD pattern of synthesized MNPs shows the formation of Fe3O4 based on the comparison of their XRD patterns with the standard pattern of Fe3O4 (04-013-9808).Heba, BassionySalwa, Sabet...