Cited 0 time in webofscience Cited 0 time in scopus

Preparation and synthesis of carbon nanomaterials from 1-hexanol by solution plasma process with Ar/O2 gas bubbles

Title
Preparation and synthesis of carbon nanomaterials from 1-hexanol by solution plasma process with Ar/O2 gas bubbles
Authors
Shin, Jun-GooPark, Choon-SangKim, Hyun-JinKum, Dae SubJung, Eun YoungBae, Gyu TaeJang, Hyo JunKim, Jae YoungCho, Byung-GwonShin, Bhum JaeTae, Heung-Sik
DGIST Authors
Kim, Jae Young
Issue Date
2019-07
Citation
Molecular Crystals and Liquid Crystals, 678(1), 20-32
Type
Article
Article Type
Article; Proceedings Paper
Author Keywords
Solution plasmaGas bubble1-hexanolArc dischargeCarbon nanomaterialsSize variation
Keywords
FLAME SYNTHESISNANO-ONIONS
ISSN
1542-1406
Abstract
This study presents the simple and catalyst-free methods for synthesizing carbon nanomaterials from 1-hexanol alcohol by using stable solution plasma process by varying the argon (Ar), oxygen (O2), and Ar and O2 mixtures plasma working gas bubble. The structural characteristics of carbon nanomaterials are measured by transmission electron microscopy, Raman spectroscopy, and X-ray diffraction. The discharge characteristics are examined based on the discharge voltage, current, and optical emission spectrometer (OES) techniques. By using the external Ar gas bubble discharge during solution plasma process, the size of carbon nanoparticle and discharge voltage are decreased compared to the no gas case and the discharge current is increased, which would be due to the increase of plasma energy and enhancement of the square of plasma-liquid contact to plasma volume. By using the external O2 gas bubble discharge during solution plasma process, whereas, the size of carbon nanoparticle is increased compared to the no gas case and the discharge voltage and current are decreased, which would be due to the production of relatively high amounts of oxygen radicals, resulting in the flame synthesis. Raman spectra results show that the degree of graphitization of the carbon nanomaterials synthesized with external Ar 150 and O2 50 standard cubic centimeter per minutes (sccm) mixtures gas bubble during solution plasma process is observed to be greater than that of the carbon nanomaterials synthesized with the only Ar or O2 gas bubble. This solution plasma process by varying the plasma working gas mixtures can potentially be used for the precise nanomaterial synthesis. © 2019, © 2019 Taylor & Francis Group, LLC.
URI
http://hdl.handle.net/20.500.11750/10376
DOI
10.1080/15421406.2019.1597524
Publisher
Taylor & Francis
Files:
There are no files associated with this item.
Collection:
Department of Robotics EngineeringRobotics Engineering Research Center1. Journal Articles


qrcode mendeley

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE