Comparative evaluation of tar steam reforming over graphitic carbon supported Ni and Co catalysts at low temperature

[Display omitted] •Metallic Co highly dispersed on char using lignite as carbon precursor.•The Co nanoparticles loaded by ion exchange method are smaller than Ni.•The interaction between Co and lignite is stronger than Ni.•Co/modified lignite char efficiently catalyzes tar cracking at low temperatur...

Ausführliche Beschreibung