Zeolite-encapsulated Co(II), Mn(II), Cu(II) and Cr(III) salen complexes as catalysts for efficient selective oxidation of benzyl alcohol

2nd International Conference on New Material and Chemical Industry

材料科学;化学工业

Li, F.H.^1 ; Bi, H.^1 ; Huang, D.X.^1 ; Zhang, M.^2 ; Song, Y.B.^1

College of Science, Shantou University, Shantou, Guangdong

515063, China^1

Entry-exit Inspection and Quarantine Bureau, Shantou, Guangdong

515041, China^2

关键词: Benzyl alcohol;    Flexible ligands;    Framework structures;    Salen complex;    Selective oxidation;    Water phase;    Y zeolites;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/292/1/012021/pdf
DOI  :  10.1088/1757-899X/292/1/012021

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

Co(II), Mn(II), Cu(II) and Cr(III) salen type complexes were synthesized in situ in Y zeolite by the reaction of ion-exchanged metal ions with the flexible ligand molecules that had diffused into the cavities. Data of characterization indicates the formation of metal salen complexes in the pores without affecting the zeolite framework structure, the absence of any extraneous species and the geometry of encapsulated complexes. The catalytic activity results show that Cosalcyen Y exhibited higher catalytic activity in the water phase selective oxidation of benzyl alcohol, which could be attributed to their geometry and the steric environment of the metal actives sites.