The surface properties of zirconia-based supports,ZrO-2/SiO-2 and ZrO-2,were compared.ZrO-2/SiO-2 prepared by layer-by-layer self-assembly(LbL SA) technique showed more favorable characteristics for HPLC applications ...The surface properties of zirconia-based supports,ZrO-2/SiO-2 and ZrO-2,were compared.ZrO-2/SiO-2 prepared by layer-by-layer self-assembly(LbL SA) technique showed more favorable characteristics for HPLC applications compared with ZrO-2 prepared by modified oil-emulsion method.The specific surface area and pore volume of ZrO-2/SiO-2 were about 18 and 20 times of those of ZrO-2 respectively.The pore of ZrO-2/SiO-2 support was ideal cylindrical shape,but ZrO-2 support had some \!ink bottle\" shaped-pores which was unfavorable for HPLC separations.Pore size distribution of ZrO-2/SiO-2 supports was more uniform than that of ZrO-2 supports.展开更多
文摘The surface properties of zirconia-based supports,ZrO-2/SiO-2 and ZrO-2,were compared.ZrO-2/SiO-2 prepared by layer-by-layer self-assembly(LbL SA) technique showed more favorable characteristics for HPLC applications compared with ZrO-2 prepared by modified oil-emulsion method.The specific surface area and pore volume of ZrO-2/SiO-2 were about 18 and 20 times of those of ZrO-2 respectively.The pore of ZrO-2/SiO-2 support was ideal cylindrical shape,but ZrO-2 support had some \!ink bottle\" shaped-pores which was unfavorable for HPLC separations.Pore size distribution of ZrO-2/SiO-2 supports was more uniform than that of ZrO-2 supports.
