The SEM analysis determines the morphological structure of the catalyst before and after use. Fig. revealed the SEM image of the cocoa pod ash before use. The image shown possesses a rough heterogeneous surface. The major ridges are quite few, but there are a number of very small voids on its surface which indicates the porosity of sample. The sponge-like appearance indicates high porosity and high surface area which means there is likely a number of active sites for catalytic effect on reacting species. Fig. is the SEM image of the cocoa pod ash after reaction. The image possesses white particles which are probably particles of the impregnated material. Besides the general uneven outlook, large interstices could be observed on the particle surface as well as numerous minute voids all over the surface of the particle. The particle morphology suggests the cocoa pod ash is highly porous and likely to have a high surface area. Similar results were observed at 80 μm and 100 μm before and after the use of the catalyst (Fig. and) and (Fig. and).