Controlled Oxidative Cutting of Single-Walled
Carbon Nanotubes
Kirk J. Ziegler
Zhenning Gu
Haiqing Peng
Erica L. Flor
Robert H. Hauge
Richard E. Smalley
10.1021/ja044537e.s002
https://acs.figshare.com/articles/dataset/Controlled_Oxidative_Cutting_of_Single_Walled_Carbon_Nanotubes/3301702
The oxidation reaction of piranha solutions with purified HiPco carbon nanotubes was measured
as a function of temperature. At high temperatures, piranha is capable of attacking existing damage sites,
generating vacancies in the graphene sidewall, and consuming the oxidized vacancies to yield short, cut
nanotubes. Increased reaction time results in increasingly shorter nanotubes. However, significant sidewall
damage occurs as well as selective etching of the smaller diameter nanotubes. On the other hand, room-temperature piranha treatments show the capability of cutting existing damage sites with minimal carbon
loss, slow etch rates, and little sidewall damage. Combined with a method of introducing controlled amounts
of damage sites, these room-temperature piranha solutions have the potential to yield an efficient means
of creating short, cut nanotubes.
2005-02-09 00:00:00
vacancy
piranha
damage sites
HiPco carbon nanotubes
reaction time results
sidewall damage
solution