Selected synthesis of carbon nanostructures directed by silver nanocrystals

Abstract

By directly reducing C2Cl4 with Na, both multi-wall carbon nanotubes and graphite nanosheets were acquired at140 °C in the presence of silver nanocrystals. Based on weak interaction between the p orbital of Cl inC2Cl4 and the emptyd orbital of Ag, C2Cl4 can in some cases be located on the surface of silver nanocrystals. The carbonnanostructures can be directed by the morphology of silver nanocrystals. The crooked sitesof silver nanocrystals lead to the formation of multi-wall carbon nanotubes while the planarsites result in the yield of graphite sheets.