Synthesis, Characterization and Catalytic Performance of H₃SiW₁₂O₄₀/SiO₂ Prepared by Sol-Gel Technique

Table 2

Percentage of mass concentration (%) of C1s, O1s, Si2p and W4f elements from wide scan analyses for STAB and STA-SG catalysts.

Type of catalyst	C1s	O1s	Si 2p	W 4f
STAB	7.11	23.79	0.48	68.62
STA-SG	2.33	61.19	33.89	2.59