Preparation and Characterization of Alkaline and Acidic Heterogeneous Carbon-Based Catalysts and Their Application in Vegetable Oil Transesterification to Obtain Biodiesel

<div><i>X</i>-ray diffraction patterns of alkaline and acidic heterogeneous catalysts used in the transesterification of vegetable oil with methanol to obtain biodiesel.</div>

International Journal of Chemical Engineering

fig4

Figure 4

Figure 4: Preparation and Characterization of Alkaline and Acidic Heterogeneous Carbon-Based Catalysts and Their Application in Vegetable Oil Transesterification to Obtain Biodiesel 

Figure 4 | Preparation and Characterization of Alkaline and Acidic Heterogeneous Carbon-Based Catalysts and Their Application in Vegetable Oil Transesterification to Obtain Biodiesel 