Figure 1. XRD patterns of SiO2/C composite
material prepared from rice husks.
As shown in Figure 1 , the structure of silica carbon material
prepared from rice husk as raw material was characterized by X-ray
diffraction. The synthesis process of SiO2/C anode
material was reported elsewhere. [23] XRD patterns of silica carbon
material exhibited broad peak spreading from 20 – 27oconfirming the presence of amorphous silica and carbon. In addition, the
diffraction peak of 43 – 44o is represented for the
amorphous carbon. [9] As a result, SiO2/C
synthesized has no impurities which are compatible for anode
application.