The Synthesis and Characterization of Cobalt and Iron Bimetallic Catalysts supported on Carbon Nanotubes

Abstract

We synthesized Fischer-Tropsch cobalt and iron bimetallic supported catalysts using two different synthesis methods: The incipient wetness impregnation and nonhydrolytic colloidal synthesis. Catalysts synthesized by both methods showed different chemical structure and behaviour. The catalysts made by dual impregnation consisted mainly of a mixture of iron and cobalt oxides, while those made by colloidal synthesis showed a cobalt ferrite-like structure. High Resolution EELS studies showed a homogenous distribution of iron and cobalt in the colloidal nanoparticles, while the distribution was heterogeneous in the reduced colloidal nanoparticle.