Amidation of single-walled carbon nanotubes by a hydrothermal process for the electrooxidation of nitric oxide.
Single-walled carbon nanotubes (SWCNTs) have been amidated by hydrothermal treatment with different aliphatic amines. The amido groups modified on the surface of the SWCNTs were characterized by Fourier transform infrared spectroscopy. The electrooxidation of nitric oxide (NO) at the modified electrodes of amidated SWCNTs was investigated. The modified electrodes of amidated SWCNTs exhibited different electrocatalytic activity for NO when different aliphatic amines were being used. The electrode amidated by ammonia has the highest activity, which is 1.8 times value of the SWCNT modified electrode. The electrocatalytic activity of the amidated SWCNT modified electrodes depends on the length of the alkyl groups. The results demonstrate that hydrothermal treatment is an efficient way to modify SWCNTs with amines, and the reaction rate of NO electrooxidation can be changed by the amidation of SWCNTs.
Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, Heilongjiang University, Harbin 150080, People's Republic of China.
Kan
K
Kan
Tingliang
T
Xia
Li
L
Li
Hongmei
H
Bi
Honggang
H
Fu
Keying
K
Shi
D000577:Amides / Q000737:chemistry*; D003460:Crystallization / Q000379:methods; D004563:Electrochemistry / Q000295:instrumentation / Q000379:methods*; D006358:Hot Temperature; D046911:Macromolecular Substances / Q000737:chemistry; D008422:Materials Testing; D008839:Microelectrodes; D008968:Molecular Conformation; D036103:Nanotechnology / Q000379:methods*; D037742:Nanotubes, Carbon / Q000737:chemistry* / Q000648:ultrastructure*; D009569:Nitric Oxide / Q000737:chemistry*; D010084:Oxidation-Reduction; D010316:Particle Size; D013499:Surface Properties; D014867:Water / Q000737:chemistry*
D000577:Amides; D046911:Macromolecular Substances; D037742:Nanotubes, Carbon; D014867:Water; D009569:Nitric Oxide