在110℃～170℃范围内对糠醛-酚醛基有机气凝胶进行氧化处理1h～7h,考察了氧化对有机气凝胶热裂解产生的炭气凝胶孔结构的影响.结果表明:氧化可避免有机气凝胶纳米骨架在裂解过程中的塑性阶段发生,有机气凝胶的适度氧化有利于纳米结构的稳定化;由于空气在大、中、微孑L中扩散的差别,氧化前处理对炭气凝胶的大、中、微孔有不同的影响,尤其对接近中孔的大孔影响最大.在所考察的氧化温度和时间内,130℃/7h时或150℃/3h时的适度氧化条件下,可显著提高中孔孔容、中孔比表面和BET比表面.
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