Metalloporphyrin oxidation catalyst covalently coupled to an ino

Details Metalloporphyrin oxidation catalyst covalently coupled to an ino Metalloporphyrin oxidation catalyst covalently coupled to an ino

1996-10-21

2000-02-22

Straub, Gary P.

Catalyst, solid sorbent, or support therefor: product or process

Catalyst or precursor therefor

Organic compound containing

502150, 502167, 502300, 502305, 502324, 502325, B01J 3122

Patent

active

060280255

ABSTRACT:
A system is provided including an article having a surface and a catalytic metal atom, capable of oxidation, covalently immobilized at the surface via a plurality of covalent bonds, but being free of direct covalent bonding to the surface. In particular, the invention relates to inorganic surfaces including silica, alumina, niobium oxide, or tantalum oxide, or a combination thereof and catalytic metal atoms including Fe, Mn, Cr, Ni, Co, Ru, and Os. The catalytic metal atom, covalently immobilized at the surface via a plurality of covalent bonds, can be immobilized via bonding through at least one atom that is bonded directly to the surface. The article preferably is an inorganic, mesoporous structure, in the pores of which are covalently bonded a plurality of metalloporphyrins. In particular, the catalytic metal atom, such as iron, manganese, chromium, nickel, cobalt, rhenium, and osmium are covalently bonded to a porphyrin structure which is bonded to an alumina or silica surface via bonds between the amine groups of the porphyrin structure of the alumina or silica surface. The invention also discloses supporting the catalytic metal atom bonded to the porphyrin structure via amine groups in the porphyrin and dopant atoms of the alumina or silica surface. Dopant atoms can include niobium and tantalum atoms.

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