화학공학소재연구정보센터
Chemical Physics Letters, Vol.709, 1-6, 2018
Impacts of different sulfur sources as a promoter on the growth of carbon nanotubes in chemical vapor deposition
Different kinds of sulfur sources which acted as a growth enhancer of carbon nanotube (CNT) were employed in chemical vapor deposition (CVD) process. Influences of sulfur sources, sulfur powder and thiourea, were investigated. The production of CNTs was facilitated when sulfur source was added, but its degree depended on sulfur source. Results showed that the smallest activation energy for CNT growth was obtained in sulfur powder, and an intermediate value between Co/Mo without sulfur source and with sulfur powder was obtained in thiourea. We attempted to interpret the difference in activation energy, especially between thiourea and sulfur powder.