Abstract Resorcinol–formaldehyde (RF) aerogels were synthesized by polymerization and, then, were carbonized using a novel induction heated fluidized bed reactor (IHFBR). The obtained carbon aerogels were activated using CO2 while the effects of activation time ξ and CO2 concentration γ on the structural properties of carbon aerogels were examined. It is shown that activation by CO2 can be easily achieved using IHFBR while ξ and γ can affect the final structural properties of carbon aerogels. Large ξ or γ results in the loss of narrow and homogeneous distribution of mesopores while low γ solely changes the micropores superficially. Accordingly, possible mechanisms for changes in the structural properties of carbon aerogels were proposed. Using IHFBR can markedly reduce the activation time (from hours to minutes) by furnishing enhanced heat and mass transfer while facilitating the scale up process.

中文翻译：

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使用感应加热流化床反应器通过 CO2 活化碳气凝胶

摘要 间苯二酚-甲醛 (RF) 气凝胶通过聚合合成，然后使用新型感应加热流化床反应器 (IHFBR) 进行碳化。获得的碳气凝胶使用 CO2 活化，同时研究了活化时间 ξ 和 CO2 浓度 γ 对碳气凝胶结构特性的影响。结果表明，使用 IHFBR 可以很容易地实现 CO2 的活化，而 ξ 和 γ 会影响碳气凝胶的最终结构特性。大的 ξ 或 γ 导致中孔的狭窄和均匀分布的丧失，而低的 γ 仅在表面上改变微孔。因此，提出了改变碳气凝胶结构特性的可能机制。