Topological Defects in Carbon Matrix are Efficiently Constructed by Joule Thermal Shock for Catalyzing the Growth of Carbon Nanotubes.

ABSTRACT: This study aims to establish a simple and efficient method for preparing topological defect carbon (TDC) and reveal its catalytic mechanism for the growth of carbon nanotubes (CNTs). TDC is prepared using N-doped carbon as a precursor through multiple Joule thermal shock treatments, and the efficiency of this method in constructing topological defects in the carbon matrix is confirmed by multi-dimensional characterization. Subsequently, the TDC catalyzed the growth of CNTs, and a possible catalytic growth mechanism based on the synergistic interaction of multiple defects is proposed. The mechanism proposes that the carbon source molecules are activated through electron transfer from pentagonal topological defects and the slight assistance of other defects, and then the activated molecules

SUBMITTER: Wang B 

PROVIDER: S-EPMC12948207 | biostudies-literature | 2026 Feb

REPOSITORIES: biostudies-literature