Preparation of Carbon Nanofibers by Hydrogenation of Carbon Dioxide on a Nickel Sponge Catalyst

Abstract A novel method for preparing carbon nanofibers via catalytic hydrogenation of CO2 on a nickel sponge catalyst at 773 K and under atmospheric pressure is reported. The drop of pressure on the nickel sponge catalyst was small, which revealed that it could save on energy for the preparation of the carbon nanofibers. The diameter of the products was less than 200 nm.