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

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 wit...

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Bibliographic Details
Published in:IOP conference series. Materials Science and Engineering 2018-01, Vol.292 (1), p.12021
Main Authors: Li, F H, Bi, H, Huang, D X, Zhang, M, Song, Y B
Format: Article
Language:English
Subjects:
Benzyl alcohol
Catalytic activity
Coordination compounds
Copper
Encapsulation
Ion exchange
Manganese
Oxidation
Trivalent chromium
Yttrium
Zeolites
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Summary: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.
ISSN:1757-8981
1757-899X
DOI:10.1088/1757-899X/292/1/012021