TY  - JOUR
AU  - Ma, Yao
AU  - Sun, Xiao
AU  - Yang, Nianjun
AU  - Xia, Junhai
AU  - Zhang, Lei
AU  - Jiang, Xin
TI  - Shape-Controlled Growth of Carbon Nanostructures: Yield and Mechanism
JO  - Chemistry - a European journal
VL  - 21
IS  - 35
SN  - 0947-6539
CY  - Weinheim
PB  - Wiley-VCH
M1  - FZJ-2015-05292
SP  - 12370 - 12375
PY  - 2015
AB  - 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.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000360093700020
DO  - DOI:10.1002/chem.201500440
UR  - https://juser.fz-juelich.de/record/203325
ER  -