“…Third, the high roughness of the catalysts with small pores, resulting from the higher number of pores at the surface, causes electric field enhancement in the plasma, which creates more reactive plasma species that can interact with the catalyst. It can also be observed that the plasma power and the average filament charge show a correlation with the conversion of the reactants (we refer to Table 2 later for more details) [42,[63][64][65]. Fourth, The larger external surface area of the catalysts with small pores (again due to a higher number of pores at the surface), may be another reason for their better performance.…”