Modification of Silica Rice Husk Ash to Solid Ammonium Sulphate for Second Generation Biofuels Productions

<div>The TEM images of RHNH<sub>3</sub>SO<sub>4</sub>H, at different magnification.</div>

Journal of Catalysts

Figure 5: Modification of Silica Rice Husk Ash to Solid Ammonium Sulphate for Second Generation Biofuels Productions 