ABSTRACT:

Modification of acid functionalized multi-walled carbon nanotubes (MWCNTs)-COOH with CeO₂ nanoparticles using Ce(NO₃)₂.6H₂O, produced an efficient catalyst for the synthesis of some nitrogen-containing heterocycles such as celecoxib. The products were identified by CHN analysis, NMR, and FT-IR spectra. On the other hand, synthesis of CeO₂ nanoparticles and their conjugation on the surface of (MWCNTs)-COOH have been confirmed by FT-IR, scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), and Energy-dispersive X-ray spectroscopy (EDX).

中文翻译：

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(MWCNTs)-COOH/CeO2杂化物作为高效催化剂在一些含氮有机化合物合成中的应用

摘要：

使用 Ce(NO ₃ ) ₂ .6H _{2 O}对酸功能化多壁碳纳米管 (MWCNTs)-COOH 进行改性，得到了用于合成一些含氮杂环如塞来昔布的高效催化剂。产物通过 CHN 分析、NMR 和 FT-IR 光谱进行鉴定。另一方面，通过FT-IR、扫描电子显微镜(SEM)、透射电子显微镜(TEM)、X射线衍射(XRD)证实了CeO ₂纳米粒子的合成及其在(MWCNTs)-COOH表面的共轭作用。 ) 和能量色散 X 射线光谱 (EDX)。