Skip to main content

Table 3 XPS surface chemical composition of SiliaCat Au before and after calcination. Elemental concentration is expressed as  % atomic percentage

From: Sol–gel encapsulation of Au nanoparticles in hybrid silica improves gold oxidation catalysis

Sample C 1 s (%) O 1 s (%) Si 2p (%) Au 4f7/2 Si/O Si/C
SiliaCatAu 14.6  61.3 24.1  0.1 0.39 1.65
Calcined SiliaCatAu 12.0 61.8 26.2 0.1 0.42 2.18