The specific surface area of catalyst decrease with preparing temperature increasing.
比表面积随催化剂制备温度和制备时间的增加而减小。
Catalyst activity was determined by not only specific surface area of catalyst but also the distributions of active center and utilization ratio of internal surface.
催化剂活性不仅与比表面有关，还与其活性中心分布情况、内表面利用率有关。
The characterization of pre-curing catalyst show that the pore volume and specific surface area had little change after vulcanization.
预硫化催化剂的表征结果表明，催化剂硫化前后孔容和比表面积变化不大。
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