%0 Journal Article
%A Ma, Yao
%A Sun, Xiao
%A Yang, Nianjun
%A Xia, Junhai
%A Zhang, Lei
%A Jiang, Xin
%T Shape-Controlled Growth of Carbon Nanostructures: Yield and Mechanism
%J Chemistry - a European journal
%V 21
%N 35
%@ 0947-6539
%C Weinheim
%I Wiley-VCH
%M FZJ-2015-05292
%P 12370 - 12375
%D 2015
%X Carbon nanostructures with precisely controlled shapes are difficult materials to synthesize. A facet-selective-catalytic process was thus proposed to synthesize polymer-linked carbon nanostructures with different shapes, covering straight carbon nanofiber, carbon nano Y-junction, carbon nano-hexapus, and carbon nano-octopus. A thermal chemical vapor deposition process was applied to grow these multi-branched carbon nanostructures at temperatures lower than 350 °C. Cu nanoparticles were utilized as the catalyst and acetylene as the reaction gas. The growth of those multi-branched nanostructures was realized through the selective growth of polymer-like sheets on certain indexed facets of Cu catalyst. The vapor–facet–solid (VFS) mechanism, a new growth mode, has been proposed to interpret such a growth in the steps of formation, diffusion, and coupling of carbon-containing oligomers, as well as their final precipitation to form nanostructures on the selective Cu facets.
%F PUB:(DE-HGF)16
%9 Journal Article
%U <Go to ISI:>//WOS:000360093700020
%R 10.1002/chem.201500440
%U https://juser.fz-juelich.de/record/203325