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Stable colloidal Co–Pd nanocatalysts for carbon nanotube growth
Author(s) -
Berenguer A.,
Cantoro M.,
Golovko V. B.,
Hofmann S.,
Wirth C. T.,
Johnson B. F. G.,
Robertson John
Publication year - 2009
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.200982256
Subject(s) - nanomaterial based catalyst , catalysis , carbon nanotube , colloid , materials science , nanotechnology , coagulation , chemical engineering , nanoparticle , carbon fibers , sputtering , chemistry , composite material , organic chemistry , thin film , psychology , psychiatry , composite number , engineering
The standard preparation method for catalysts for surface‐bound growth of carbon nanotubes (CNT) is to sputter or evaporate the metal catalyst (Fe, Co, and Ni) onto the surface. A lower cost method for large areas is to use liquid delivery. Colloids have the advantage of containing the catalyst in nanocluster form. Our previously developed colloidal catalysts were successful for growth but had limited shelf‐life due to oxidation and coagulation. Here, we develop an air‐stable colloidal catalyst with long shelf‐life of many months to years.