中文摘要：

在110℃-170℃范围内对糠醛一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、微孔中扩散的差别，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。

英文摘要：

Organic aerogels, prepared by sol-gel polymerization of phenolic and furfural, were oxidized at 110 to 170 ℃ for 1 to 7h in air. The effect of oxidation temperature and time on the pore structure of the carbon aerogels was investigated. It is found that oxidation under appropriate conditions can stabilize a nano-network of organic aerogels during pyrolysis by preventing plasticity. However, the oxidative effect on micro-, meso- and macro-pores is quite different. A mild condition is appropriate for macro-pores while a severe condition is needed for meso- and micro-pores due to a faster diffusion of air into macro-pores than into meso- and micro-pores. The appropriate oxidation parameters for an improved mesopore volume and surface area are 130 ℃ for 7 h or 150 ℃ for 3 h in air.