Fig. 3.

Dependence of the specific surface areas A_m and A_V on the mean ligament diameter, according to Eq. 7. For the majority of catalytic studies published in literature, npAu catalysts were used which exhibited ligament diameters between ~ 20 and 50 nm. For this size range surface areas between ~ 4 and 10 m²/g are expected. Larger ligament sizes can be obtained by subsequent thermal coarsening; in this case, however, the surface areas are typically too small for catalytic applications. The constant $\mathrm{\zeta }$ determined for npAu resembles that of a single gyroid structure, suggesting a certain comparability of the pore arrangements