Encapsulation of FePt and FePt3 alloys inside carbon-foam materials. (27th March 2019)

• Record Type: Journal Article
• Authors: Boi, Filippo S; Wang, Jiayu; He, Yi; Wen, Jiqiu; Wang, Shanling; Zhang, Xi; Yu, Tian; Shi, Lin; Ma, Qiuyan; Lan, Mu; Lei, Li; Xiang, Gang
• Is Part Of: Materials research express. Volume 6:Number 6(2019)
• Publication Date: 2019-03-27
• Subjects: carbon foam -- FePt -- FePt3; Materials science -- Research -- Periodicals; Materials science -- Periodicals; 620.11
• DOI: 10.1088/2053-1591/ab0edf
• Languages: English
• ISSNs: 2053-1591

Abstract

Abstract: We demonstrate an advanced chemical vapour deposition (CVD) approach in which the addition of Pt-containing hydrocarbons to ferrocene allows the nucleation of a novel carbon-foam material completely filled with elemental Fe and Pt crystal-phases. These phases are then found to alloy into tetragonal FePt and cubic FePt3 in specific annealing conditions. A dependence of the FePt nucleation on the Ar/H2 flow rate is reported. In addition, high pressure (5 GPa) experiments are found to favor the formation of a single FePt3 encapsulated phase together with the nucleation of C–O rich carbon layers in the foam surface.