title: Nanofibrous and nanotubular supports for the immobilization of metalloporphyrins as oxidation catalysts.
abstract: Nanofibrous and nanotubular materials, natural and synthetic, are important alternative matrices for the immobilization of metallocomplexes, especially metalloporphyrins, as oxidation catalysts. The process permits a regular and controllable distribution of the active phase at the outer and/or inner surfaces of the tubes, promoting a special environment for the approximation of a substrate to the catalytic active species. The immobilization also prevents the molecular aggregation and bimolecular self-destruction reactions, facilitates the recovery and reuse of the catalyst, reduce de cost of material preparation and environmental concerns. A variety of nanofibrous and nanotubular structures are presented and specific examples of immobilization of iron porphyrins in different supports and their oxidation catalytic activities are presented and discussed.
authors.affiliation: Universidade Federal do Paraná, Departamento de Química, CP 19081, CEP 81531990, Curitiba, Paraná, Brazil.
authors.forename: Shirley
authors.initials: S
authors.lastname: Nakagaki
authors.forename: Fernando
authors.initials: F
authors.lastname: Wypych
mesh_terms: D040761:Biomimetic Materials / Q000737:chemistry*; D002384:Catalysis; D007501:Iron / Q000737:chemistry*; D008665:Metalloporphyrins / Q000737:chemistry*; D046529:Microscopy, Electron, Transmission; D008958:Models, Molecular; D049329:Nanostructures / Q000737:chemistry* / Q000648:ultrastructure; D036103:Nanotechnology / Q000379:methods*; D043942:Nanotubes / Q000737:chemistry* / Q000648:ultrastructure; D009942:Organometallic Compounds / Q000737:chemistry*; D010084:Oxidation-Reduction
chemical_list: D008665:Metalloporphyrins; D009942:Organometallic Compounds; D007501:Iron