Fig. 5From: Effects of metal cation substitution on hexavalent chromium reduction by green rustTEM images of oxGR (a), oxAl-GR (b), oxMg-GR (c) and oxZn-GR (d). STEM images of oxMg-GR (e) and oxZn-GR (f) are also shown. Areas where SAED was performed are indicated, and the SAED patterns are displayed in the insets. FWHM of diffraction spots (mm, at 2.53 Å/1.46 Å): a 0.65/1.26, b 0.71/1.51, c 0.55/0.67, d 0.72/1.07Back to article page