Narrow Results

In this study, we demonstrated a novel method to grow carbon nanotubes (CNTs) by chloride-mediated chemical vapor deposition with hydride vapor-phase nucleated catalyst (HVPN). In the HVPN method, FeCl₂ as a catalyst precursor was produced by an in situ chemical reaction between Fe powder and HCl gas. After the synthesis of FeCl₂, CNTs were grown by supplying acetylene. We studied growth conditions for the catalyst formation process in HVPN method. High-quality CNT forests were grown by optimizing the FeCl₂ synthesis conditions. This study has established the HVPN method as a novel, highly controllable way to grow CNT forests.