Patent ID: 6696387
Filing Date: 2004-02-24
Classification: B01J,B82Y,D01F

Abstract:
A method for the manufacture of a catalyst for the production of carbon fibrils comprising forming a fibril-forming catalyst or a precursor of a fibril-forming catalyst in the presence of an effective amount of a surfactant and/or polyol to increase the yield of the carbon fibrils and to improve the dispersion and electrochemical properties of the carbon fibrils, wherein said fibril-forming catalyst comprises metal particles dispersed on a catalyst support particle, the catalyst support particle selected from the group consisting of alumina or magnesia particles, and the metal particles comprise iron and optionally at least one element chosen from V, Nb, Ta, Cr, Mo, W, Mn, Tc, Re, Ru, Os, Co, Rh, Ir, Ni, Pd, Pt or the lanthanides.