The BET surface area, total pore volume and average pore size of the
investigated sample are presented in Table S1. Compared with carries,
the Cu-catalyst and Cu/Ni-catalyst surface area reduced from 156.39 to
138.85 m2/g and 136.64 m2/g, respectively, and the total pore volume
and average pore size of the sample also diminished. The influence of
Ni loaded on the pore structure of Cu-catalyst is not apparent.