Synthesis, Characterization and Liquid Phase Oxidation of Cyclohexane with Hydrogen Peroxide over Oxovanadium(IV) Schiff-base Tetradendate Complex Covalently Anchored to Multi-Wall Carbon Nanotubes (MWNTs)

Bulletin of the Korean chemical society

Masoud Salavati Niasari¹  Mehdi Bazarganipour¹ 

关键词: Multi-wall carbon nanotubes;    Oxovanadium(IV);    Heterogeneous catalyst;    Oxidation of cyclohexane;   

DOI  :  

学科分类：化学（综合）

来源: Korean Chemical Society

【 摘 要 】

The chemical modification of multi-wall carbon nanotubes (MWNTs) is an emerging area in material science. In the present study, hydroxyl functionalized oxovanadium(IV) Schiff-base; N,N`-bis(4-hydroxysalicylidene)-ethylene-1, 2-diamineoxovanadium(IV), [VO((OH)2-salen)]; has been covalently anchored on modified MWNTs. The new modified MWNTs ([VO((OH)2-salen)]-MWNTs]) have been characterized by transmission electron microscopy (TEM), X-ray diffraction (XRD), X-ray photoelectron (XPS), UV-Vis, Diffuse reflectance (DRS), FT-IR spectroscopy and elemental analysis. The analytical data indicated a composition corresponding to the mononuclear complex of tetradentate Schiff-base ligand. The characterization of the data showed the absence of extraneous complex, retention of MWNTs and covalently anchored on modified MWNTs. Liquid-phase oxidation of cyclohexane with H2O2 to a mixture of cyclohexanone, cyclohexanol and cyclohexane-1,2-diol in CH3CN have been reported using oxovanadium(IV) Schiff-base complex covalently anchored on modified MWNTs as catalysts. This catalyst is more selective toward cyclohexanol formation.

【 授权许可】

Unknown