The Regulatory Effect of CsCl Addition on the Morphology of Carbon Nanomaterials: From Nanospheres to Nanoneedles

Abstract The morphology of nanomaterials significantly affects their physical and chemical properties. In this study, Tetradecyltrimethylammonium bromide was used as the carbon source, and sodium bromide (NaBr) and a mixture of CsCl with NaBr were used as spacers to prepare carbon nanospheres and carbon nanoneedles, respectively. Characterization techniques included SEM, XPS, XRD, Raman spectroscopy, and FT-IR spectroscopy, the results demonstrate that carbon nanoneedles have a higher degree of graphitization and lower surface oxidation. The introduction of CsCl significantly changed the morphology of the carbon nanomaterials, transforming them from spherical to needle-like structures.providing a new strategy for the design and control of nanomaterial morphology.