Fig. 5

(a) N2 adsorption–desorption isotherms, and (b) Pore size distributions of pristine CeO2 and Ni/CeO2 catalysts in different forms (calcined and reduced forms).

(a) N2 adsorption–desorption isotherms, and (b) Pore size distributions of pristine CeO2 and Ni/CeO2 catalysts in different forms (calcined and reduced forms).