以水蒸汽活化的聚丙腈基活性炭纤维(PAN-ACF)为原料，研究了KOH二次活化对PAN-ACF纳米孔隙结构发展过程的影响。以氮吸附等温线为基础，根据微孔填充理论，采用αs-plot和DFT等方法研究了二次活化PAN-ACF的纳米微结构。结果表明：在实验考察范围内，经过二次活化后PAN-ACF的比表面积和孔容积增加，尤其中孔容积增加显著，约占总孔容积的50*#%，活化过程中不出现大孔。
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