Effect of Pyrolysis Temperature on Crystallinity Properties of Acid-Catalyzed Resorcinol Formaldehyde Based Carbon Xerogel
Keywords:
Pyrolysis, Resorcinol- formaldehyde gel, sol-gel method, ambient pressure dryingAbstract
Pyrolysis temperature is a critical factor that influences the structural properties of carbon materials derived from different organic precursors. This study explored the impact of pyrolysis temperature (i.e., 400, 600, and 900 oC) on the crystallinity characteristic of the acid catalyzed resorcinol-formaldehyde based carbon xerogels. The crystallinity properties of the resulting carbons were investigated based on the XRD analysis aiming to understand the transformation of the resulted carbon xerogel microstructure upon thermal treatment. The findings revealed a meaningful correlation between pyrolysis temperature and the crystallinity of the final carbons. Notably, as the pyrolysis temperature increased, the degree of crystallinity of the carbons also increased. Specifically, the carbon xerogel synthesized at 900°C exhibited a turbostratic carbon structure, highlighting the significant influence of high pyrolysis temperature on the graphitization process.
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