TY - JOUR
T1 - Effect of oxygen plasma alumina treatment on growth of carbon nanotube forests
AU - Yang, Junwei
AU - Esconjauregui, Santiago
AU - Xie, Rongsie
AU - Sugime, Hisashi
AU - Makaryan, Taron
AU - D'Arsié, Lorenzo
AU - Gonzalez Arellano, David Leonardo
AU - Bhardwaj, Sunil
AU - Cepek, Cinzia
AU - Robertson, John
PY - 2014/8/14
Y1 - 2014/8/14
N2 - We use oxygen plasma to increase the height of forests from ∼0.2 to >2 mm. The effectiveness of treating alumina by oxygen plasma, prior to iron nanoparticle formation, is studied using cycles of nanotube growth, nanotube burning, and regrowth. This demonstrates that plasma-treated alumina is more resistant to iron bulk diffusion than an untreated one. Secondary ion mass spectroscopy shows there is negligible iron diffusion into the bulk of treated alumina. Plasma treatment of catalyst supports is potentially useful for growth of ultra-high-density nanotube forests for applications such as interconnects in integrated circuits and heat sinks.
AB - We use oxygen plasma to increase the height of forests from ∼0.2 to >2 mm. The effectiveness of treating alumina by oxygen plasma, prior to iron nanoparticle formation, is studied using cycles of nanotube growth, nanotube burning, and regrowth. This demonstrates that plasma-treated alumina is more resistant to iron bulk diffusion than an untreated one. Secondary ion mass spectroscopy shows there is negligible iron diffusion into the bulk of treated alumina. Plasma treatment of catalyst supports is potentially useful for growth of ultra-high-density nanotube forests for applications such as interconnects in integrated circuits and heat sinks.
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U2 - 10.1021/jp5022196
DO - 10.1021/jp5022196
M3 - Article
AN - SCOPUS:84906241208
VL - 118
SP - 18683
EP - 18692
JO - Journal of Physical Chemistry C
JF - Journal of Physical Chemistry C
SN - 1932-7447
IS - 32
ER -