Abstract: Ordered Fe-containing mesoporous carbon composite materials（Fe/OMC）have been synthesized via soft-templating routes by using triblock copolymer F127 as a template agent，resorcinol (R)-formaldehyde（F）as a carbon precursor，inorganic iron salts having complex reaction with phenols as a metal precursor in one-pot. The main strategy of this approach was to utilize the acidity self-generated from the hydrolysis of inorganic salts in the aqueous solutions as the catalyst for RF polymerization，where no addition of mineral acids was necessary. The resultant Fe/OMC materials were characterized by X-ray diffraction，Transmission electron microscopy. The influences of the aging time，the dosage of iron nitrate and the molar ratio of R/F on the structure of the obtained materials were investigated. Results show that the ordered mesoporous structure can be obtained under the synthetic condition of the aging time≥60 h，n(Fe)/n(R)=0.05—0.2，n(R)/n(F)=1/1.5—1/2.0. Moreover，a possible mechanism of the synthesis of Fe/OMC was proposed.

Key words: one-pot, soft-templating, iron, ordered mesoporous carbon, mechanism

摘要： 采用软模板路线以三嵌段共聚物F127为模板剂，间苯二酚-甲醛缩聚所形成酚醛树脂（RF）为碳源，与酚羟基有络合作用的无机铁盐为金属前体，在无外加酸碱催化剂的条件下，利用铁盐的水解反应形成酚醛缩聚所需酸性环境，多组分共组装一步合成了载铁有序介孔碳材料（Fe/OMC）。对Fe/OMC合成各阶段过程进行了分析，利用X射线衍射、透射电子显微镜等手段对材料进行表征，比较了不同老化时间、硝酸铁投加量及酚醛比例等合成条件对材料结构的影响规律。结果表明，在较长的老化时间（≥60 h）、适宜的n(Fe)/n(R)比（0.05～0.2）和n(R)/n(F)比[(1/1.5)～(1/2)]条件下，均可形成有序的介孔结构。在此基础上，提出了载铁有序介孔碳材料的形成机理。

关键词: 一步法, 软模板, 铁, 有序介孔碳, 形成机理