Show simple item record Liu, Y Lor, C Fu, Q Pan, D Lei, D Liu, J Lu, J 2011-06-21T17:26:40Z 2010-04-08
dc.identifier.citation Journal of Physical Chemistry C, 2010, 114 (13), pp. 5767 - 5772
dc.identifier.issn 1932-7447
dc.description.abstract Self-assembled solution micelles prepared from polystyrene-b-poly(4- vinylpyridine) (PS-b-P4VP) and polystyrene-b-poly(2-vinylpyridine) (PS-b-P2VP), have been employed as templates to synthesize copper nanocatalysts which are regarded as an excellent catalyst system for 1D nanomaterial synthesis. We have demonstrated that uniform-sized nanoparticles with diameters ranging from 1 to 15 nm have been generated. We have revealed that nanocatalyst size can be rationally tailored by adjusting the interaction between copper precursors and ligands and metal sequestration time. Ordered arrays of copper nanocatalysts derived from depositing a monolayer of solution micelles exhibit excellent thermal stability and do not agglomerate during the thermal treatment at 850 °C, typical growth temperature for 1D nanomaterial using the chemical vapor deposition technique. High-density and aligned single-walled carbon nanotubes with uniform diameter have been synthesized using the chemical vapor deposition technique. The average diameter is 1.4 nm, which is on the same order of catalyst size, around 2.0 nm. The combination of tunable size and spacing with superb thermal stability and outstanding catalytic activity offered by this new copper nanocatalyst system will enable growth of high-yield 1D nanomaterials with controllable diameter and spacing consistently and reproducible properties. It also paves a new path to study the effect of nanocatalyst size on 1D nanomaterial synthesis and their properties. © 2010 American Chemical Society.
dc.format.extent 5767 - 5772
dc.language.iso en_US en_US
dc.relation.ispartof Journal of Physical Chemistry C
dc.relation.isversionof 10.1021/jp9099545
dc.title Synthesis of copper nanocatalysts with tunable size using diblock copolymer solution micelles
dc.title.alternative en_US
dc.type Journal Article
dc.description.version Version of Record en_US 2010-4-8 en_US
duke.description.endpage 5772 en_US
duke.description.issue 13 en_US
duke.description.startpage 5767 en_US
duke.description.volume 114 en_US
dc.relation.journal Journal of Physical Chemistry C en_US
pubs.issue 13
pubs.organisational-group /Duke
pubs.organisational-group /Duke/Trinity College of Arts & Sciences
pubs.organisational-group /Duke/Trinity College of Arts & Sciences/Chemistry
pubs.publication-status Published
pubs.volume 114
dc.identifier.eissn 1932-7455

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