CAJ | 학술논문

结合X射线近边吸收谱和光电子能谱对经过一系列纯化过程处理后的单壁碳纳米管进行系统的表征.这些纯化过程包括空气氧化、盐酸浸泡以及退火处理.从实验结果发现单壁碳纳米管的表面修饰程度在纯化过程中逐渐增强,经过Ar气保护下的高温退火后,这些表面修饰明显减少.同时还发现单壁碳纳米管能与氯原子成键,这种简单的修饰方法可能对单壁碳纳米管的应用具有重要意义.
결합X사선근변흡수보화광전자능보대경과일계렬순화과정처리후적단벽탄납미관진행계통적표정.저사순화과정포괄공기양화、염산침포이급퇴화처리.종실험결과발현단벽탄납미관적표면수식정도재순화과정중축점증강,경과Ar기보호하적고온퇴화후,저사표면수식명현감소.동시환발현단벽탄납미관능여록원자성건,저충간단적수식방법가능대단벽탄납미관적응용구유중요의의.
A systematic characterization of single-walled carbon nanotubes (SWCNTs) after successive purification steps, including air oxidation at 350℃, hydrochloric acid etching and 600℃ annealing in Ar, have been performed combining X-ray absorption near-edge structure (XANES) and X-ray photoelectron spectroscopy (XPS). The results indicated that the modification degree of SWCNTs increased after the purification procedures, but decreased significantly by annealing in Ar. It also showed that the SWCNTs could bond with chlorine atoms during the hydrochloric acid etching and suggested this modification may be importance for the applications.