Comparisons of MWCNTs and acidified process by HNO3 on thermal stability by DSC and TG-FTIR

ASIA unversity > 醫學暨健康學院 > 食品營養與保健生技學系 > 期刊論文 > Item 310904400/17268

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题名:	Comparisons of MWCNTs and acidified process by HNO3 on thermal stability by DSC and TG-FTIR
作者:	Yu-Chuan Chou;Tung-Feng Hsieh;Yu-Chen Hsieh;Chun-Ping Lin;Chi-Min Shu
贡献者:	保健營養生技學系
关键词:	Differential scanning calorimetry;Inherently safer design;Multi-walled carbon nanotubes;Thermal stability characteristics;Thermogravimetric analyzer;Thermokinetic parameters
日期:	2010-10
上传时间:	2012-11-26 02:30:48 (UTC+0)
摘要:	Multi-walled carbon nanotubes (MWCNTs) have remarkable properties. However, their thermal stability characteristics, which may represent potential hazards during the production or utilization stage, concern unsafe or unknown properties researches. Our aim was to analyze the thermokinetic parameters of different heating rates by differential scanning calorimetry (DSC) and thermogravimetric analyzer (TG), and then to compare thermal decomposition energy parameters under various conditions by well-known kinetic equations. MWCNTs were acidified via nitric acid (HNO3) in various concentrations from 3 to 15 N and were characterized by means of Fourier transform infrared (FTIR) spectrometry. For original and modified MWCNTs, we further identified the thermal degradation characteristics of the functional group by TG-FTIR. Finally, we established an effective and prompt procedure for receiving information on thermal decomposition characteristics and reaction hazard of MWCNTs that could be applied as an inherently safer design during normal or upset operation.
關聯:	JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
显示于类别:	[食品營養與保健生技學系] 期刊論文

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