CAJ | 학술논문

采用化学修饰的方法,用偶联剂3-氨基丙基三乙氧基硅烷(APTEs)对多壁碳纳米管进行酰胺化,并采用红外光谱和拉曼光谱对其结构进行表征,研究结果表明,用偶联剂修饰后的碳纳米结构并未发生改变.同时采用原位TG-MS技术研究了NO在多壁碳纳米管的吸附和脱附行为,TG等温吸附曲线结果表明,在温度一定的条件下,酰胺化多壁碳纳米管对NO的吸附量为未改性多壁碳纳米管的3倍;TG-DTG的等温脱附曲线实验研究表明,NO在酰胺化多壁碳纳米管脱附的温度点较多,同时其原位MS实验结果进一步印证了这一结论.另外考察了温度对碳纳米管吸附NO性能的影响,实验结果表明吸附温度对NO在多壁碳纳米管上的吸附量有较大的影响,酰胺化多壁碳纳米管对NO的最佳吸附温度为100℃.
채용화학수식적방법,용우련제3-안기병기삼을양기규완(APTEs)대다벽탄납미관진행선알화,병채용홍외광보화랍만광보대기결구진행표정,연구결과표명,용우련제수식후적탄납미결구병미발생개변.동시채용원위TG-MS기술연구료NO재다벽탄납미관적흡부화탈부행위,TG등온흡부곡선결과표명,재온도일정적조건하,선알화다벽탄납미관대NO적흡부량위미개성다벽탄납미관적3배;TG-DTG적등온탈부곡선실험연구표명,NO재선알화다벽탄납미관탈부적온도점교다,동시기원위MS실험결과진일보인증료저일결론.령외고찰료온도대탄납미관흡부NO성능적영향,실험결과표명흡부온도대NO재다벽탄납미관상적흡부량유교대적영향,선알화다벽탄납미관대NO적최가흡부온도위100℃.
Multi-walled carbon nanotubes (MCNTs) were modified by 3-aminopropyltriethoxysilane. The modified MCNTs were characterized by FT-IR and Raman spectral. The results show that the structure of modified carbon nanotubes were unchanged. The mechanism of NO adsorption-desorption of multi-walled carbon nanotubes was studied by TG-MS. The adsorption isothermal curve by TG indicated that the adsorption of capacity of amide-multiwalled carbon nanotubes are 3 times higher than that of unmodified multi-walled carbon nanotubes under certain temperature condition. The desorption isothermal curve by TG-DTG showed that NO desorption of modified carbon nanotubes has more temperature points. At the same time,the result of the situ MS confirms this conclusion. Moreover the effect of temperature on adsorption property was studied. The result indicated that temperature has a great influence on adsorption capability. The best temperature of amide-multi-walled carbon nanotubes is 100℃ for NO adsorption.