title: Hierarchical superparamagnetic magnetite nanowafers from a resin-bound [Fe(bpy)3]2+ matrix.
abstract: The brilliant red [Fe(bpy)(3)](2+) complex upon immobilization on a strongly acidic cation exchanger or in situ formation of the same cationic complex onto a resin matrix and subsequent modified hydrothermolysis (MHT) at approximately 110 degrees C produces unusually stable hierarchical magnetite (Fe(3)O(4)) nanowafers. The slow hydrothermolysis, oxidation, and subsequent dehydration of the complex on the solid-liquid interface produce stable hierarchical nanostructures. The isolation of neat Fe(3)O(4) (uncapped) particles from the resin matrix as hierarchical nanowafers was achieved by magnetically stirring a CH(3)CN suspension of nanocomposites. The solid resin support not only aids nanowafer formation on its surface but also provides unique stability to the magnetite particles, where nanowafer oxidation is largely retarded. The utility of the as-prepared porous nanocomposite and characterization of the nanoparticles are promising for nanotechnological and soft ferromagnetic applications.
authors.affiliation: Department of Chemistry, Indian Institute of Technology, Kharagpur-721302, India.
authors.forename: Mrinmoyee
authors.initials: M
authors.lastname: Basu
authors.forename: Arun Kumar
authors.initials: AK
authors.lastname: Sinha
authors.forename: Sougata
authors.initials: S
authors.lastname: Sarkar
authors.forename: Mukul
authors.initials: M
authors.lastname: Pradhan
authors.forename: S M
authors.initials: SM
authors.lastname: Yusuf
authors.forename: Yuichi
authors.initials: Y
authors.lastname: Negishi
authors.forename: Tarasankar
authors.initials: T
authors.lastname: Pal