Complex Nano-objects Displaying Both Magnetic and Catalytic Properties: A Proof of Concept for Magnetically Induced Heterogeneous Catalysis

Anca Meffre; Boubker Mehdaoui; Vincent Connord; Julian Carrey; Pier Francesco Fazzini; Sébastien Lachaize; Marc Respaud; Bruno Chaudret

doi:10.1021/acs.nanolett.5b00446

Complex Nano-objects Displaying Both Magnetic and Catalytic Properties: A Proof of Concept for Magnetically Induced Heterogeneous Catalysis

Nano Lett. 2015 May 13;15(5):3241-8. doi: 10.1021/acs.nanolett.5b00446. Epub 2015 Apr 21.

Authors

Anca Meffre¹, Boubker Mehdaoui¹, Vincent Connord¹, Julian Carrey¹, Pier Francesco Fazzini¹, Sébastien Lachaize¹, Marc Respaud¹, Bruno Chaudret¹

Affiliation

¹ †Laboratoire de Physique et Chimie des Nano Objets, LPCNO, UMR5215 INSA-UPS-CNRS, Université de Toulouse; Institut National des Sciences Appliquées, 135 avenue de Rangueil, 31077 Toulouse, France.

PMID: 25867032
DOI: 10.1021/acs.nanolett.5b00446

Abstract

Addition of Co2(Co)9 and Ru3(CO)12 on preformed monodisperse iron(0) nanoparticles (Fe(0) NPs) at 150 °C under H2 leads to monodisperse core-shell Fe@FeCo NPs and to a thin discontinuous Ru(0) layer supported on the initial Fe(0) NPs. The new complex NPs were studied by state-of-the-art transmission electron microscopy techniques as well as X-ray diffraction, Mössbauer spectroscopy, and magnetic measurements. These particles display large heating powers (SAR) when placed in an alternating magnetic field. The combination of magnetic and surface catalytic properties of these novel objects were used to demonstrate a new concept: the possibility of performing Fischer-Tropsch syntheses by heating the catalytic nanoparticles with an external alternating magnetic field.

Keywords: Fischer−Tropsch; Magnetic nanoparticle; bimetallic; catalysis; iron.

Publication types

Research Support, Non-U.S. Gov't