Iron oxide is a key multi-functional material in many different fields of modern technology. The b-Fe2O3 cubic phase, one of the least studied Fe O systems, was obtained by Chemical Vapor Deposition (CVD) using for the first time a Fe(II) b-diketonate diamine complex, Fe(hfa)2·TMEDA, as the molecular source (hfa = 1,1,1,5,5,5-hexafluoro-2,4-pentanedionate; TMEDA = N,N,N¢,N¢-tetramethylethylenediamine). The strong visible light absorption of b-Fe2O3 deposits highlights their possible functional application in photocatalytic hydrogen production under solar light. A comprehensive investigation on the Fe(II) complex, performed by a joint experimental theoretical approach, explains the molecular origin of its excellent thermal behaviour and reveals why this species is a successful precursor for the CVD of iron oxide nanostructures
beta-Fe2O3 nanomaterials from an iron(II) diketonate-diamine complex: a study from molecular precursor to growth process
SERAGLIA, ROBERTA;BARRECA, DAVIDE;VENZO, ALFONSO
2012
Abstract
Iron oxide is a key multi-functional material in many different fields of modern technology. The b-Fe2O3 cubic phase, one of the least studied Fe O systems, was obtained by Chemical Vapor Deposition (CVD) using for the first time a Fe(II) b-diketonate diamine complex, Fe(hfa)2·TMEDA, as the molecular source (hfa = 1,1,1,5,5,5-hexafluoro-2,4-pentanedionate; TMEDA = N,N,N¢,N¢-tetramethylethylenediamine). The strong visible light absorption of b-Fe2O3 deposits highlights their possible functional application in photocatalytic hydrogen production under solar light. A comprehensive investigation on the Fe(II) complex, performed by a joint experimental theoretical approach, explains the molecular origin of its excellent thermal behaviour and reveals why this species is a successful precursor for the CVD of iron oxide nanostructuresI documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
