A series of S_2O~(2-)_8/ZrO_2-SiO_2 catalysts with different composition,which have different acid types,acid amount and acid strength at surfaces,were characterized by IR,Py-IR,and XPS.

• 采用IR、Py-IR、XPS技术考察了不同制备条件下制备的S2O2-8/ZrO2-SiO2类固体超强酸催化剂的表面酸种类、酸量、酸强度.