A study on the dependence of structure of multi-walled carbon nanotubes on acid treatment
نویسنده:
, , , , ,سال
: 2015
چکیده: In the current research, the role of both concentrated nitric acid and ultrasound waves on oxidation of
multi-walled carbon nanotubes (MWNTs) was studied. The functionalized MWCNTs were characterized by transmission electron microscopy (TEM), thermogravimetric analyzer, and Fourier transform infrared spectroscopy (FTIR) techniques. It was found that desirable modifications to MWNTs occurred after acid treatment. Carboxylic acid groups were appeared on the side surfaces of MWNTs. FTIR presented the formation of oxygen-containing groups such as C=O and COOH after modification by concentrated
nitric acid. The TEM images showed that the aspect ratio of opened MWCNTs was controlled by both ultrasonic waves and acid treatment time. It was also found that the exposure of about 4 h in nitric acid led to the highest removal of the impurities with the least destructive effect.
multi-walled carbon nanotubes (MWNTs) was studied. The functionalized MWCNTs were characterized by transmission electron microscopy (TEM), thermogravimetric analyzer, and Fourier transform infrared spectroscopy (FTIR) techniques. It was found that desirable modifications to MWNTs occurred after acid treatment. Carboxylic acid groups were appeared on the side surfaces of MWNTs. FTIR presented the formation of oxygen-containing groups such as C=O and COOH after modification by concentrated
nitric acid. The TEM images showed that the aspect ratio of opened MWCNTs was controlled by both ultrasonic waves and acid treatment time. It was also found that the exposure of about 4 h in nitric acid led to the highest removal of the impurities with the least destructive effect.
کلیدواژه(گان): Multi-walled carbon nanotube Structure Acid treatment Ultrasonic waves
کالکشن
:
-
آمار بازدید
A study on the dependence of structure of multi-walled carbon nanotubes on acid treatment
Show full item record
| contributor author | سمانه صاحبیان سقی | en |
| contributor author | S. M. Zebarjad | en |
| contributor author | جلیل وحدتی خاکی | en |
| contributor author | A. Lazzeri | en |
| contributor author | Samaneh Sahebian | fa |
| contributor author | Jalil Vahdati Khaki | fa |
| date accessioned | 2020-06-06T13:27:55Z | |
| date available | 2020-06-06T13:27:55Z | |
| date issued | 2015 | |
| identifier uri | http://libsearch.um.ac.ir:80/fum/handle/fum/3355941 | |
| description abstract | In the current research, the role of both concentrated nitric acid and ultrasound waves on oxidation of multi-walled carbon nanotubes (MWNTs) was studied. The functionalized MWCNTs were characterized by transmission electron microscopy (TEM), thermogravimetric analyzer, and Fourier transform infrared spectroscopy (FTIR) techniques. It was found that desirable modifications to MWNTs occurred after acid treatment. Carboxylic acid groups were appeared on the side surfaces of MWNTs. FTIR presented the formation of oxygen-containing groups such as C=O and COOH after modification by concentrated nitric acid. The TEM images showed that the aspect ratio of opened MWCNTs was controlled by both ultrasonic waves and acid treatment time. It was also found that the exposure of about 4 h in nitric acid led to the highest removal of the impurities with the least destructive effect. | en |
| language | English | |
| title | A study on the dependence of structure of multi-walled carbon nanotubes on acid treatment | en |
| type | Journal Paper | |
| contenttype | External Fulltext | |
| subject keywords | Multi-walled carbon nanotube Structure Acid treatment Ultrasonic waves | en |
| journal title | Journal of Nanostructure in Chemistry | fa |
| pages | 287-293 | |
| journal volume | 5 | |
| journal issue | 5 | |
| identifier link | https://profdoc.um.ac.ir/paper-abstract-1054255.html | |
| identifier articleid | 1054255 |