The cerium zirconium mixed oxides with high performance such as high surface area,good thermal stability were prepared by the method of co-precipitation and hydrothermal treatment.

The results show that the Ce-Zr-Ba mixed oxide powder is nano-sized with the particle size of 50nm, and a high surface area of119.

Modified SiO2 composites were synthesized from porous SiO2 with a high surface area above 1 000 m2/g by means of impregnating method.

Silica gels with a high specific surface area and high adsorption activity ,which have high selectivity and high adsorption capacity for zirconium in acidic high level radioactive liquid waste (HLLW), have been prepared from water-glass and hydrochloric acid through adding surfactants.

Silica gels with the high specific surface area and the high adsorption activity have been prepared from water glass and HCL through the process of adding surfactant.

Study on the preparation of high specific surface area coal-based activated carbon and its adsorption properties;

Preparation and characterization of high specific surface area activated carbon frombamboo by chemical activation with KOH;

Preparation of macropore catalysts and supports with high specific surface area by supercritical fluid drying;

Experimental study on metal gauze corrugated packing with high specific area;

This paper provides a brief description of the development of high surface area activated carbon (HSAAC) in foreign countries and the situation on HSAAC study in our country.

Nanostructured CuO-CeO_2 catalysts with high surface area were prepared bymodified citrate sol-gel method (the precursor was firstly pretreated under N_2 to formcarbon powers at high temperature and then the carbon powers was burned up).

So, it has important significant to synthesis high surface area silicon carbide.

Then the above oxides were aged at 980(°C),and two high-aging specific surface area Ce-Zr complex oxides were obtained with the specific surface area of 17.