Through SEM the powder can be identified to porous structure, with specific surface areas of about 11.6m2/g, total pore volume of 0.034cc/g and average pore diameter of 1 1 .9nm by BET method.

• 通过扫描电子显微镜(SEM)观察其形貌为多孔质，BET(N_2吸附)法测定比表面积为11.；6m~2/g，平均孔容量0