University of Massachusets Amherst From the SelectedWorks of George W. Huber 2001 Gd promotion of Co/SiO2 Fischer–Tropsch synthesis catalysts George W Huber, University of Massachusets - Amherst S. J.M Butala M. L Lee C. H Bartholomew Available at: htps://works.bepress.com/george_huber/39/