聚吡咯衍生的多孔氮掺杂碳材料的制备及其气体吸附应用

Preparation of Porous Nitrogen-doped Carbon Materials Derived from Polypyrrole for Gas Adsorption

通过物理活化的方法,以导电高分子聚吡咯作为前驱体制备了一系列氮掺杂多孔碳材料。通过扫描电镜、X射线衍射、氮气吸脱附测试、拉曼光谱等手段对样品进行了表征。通过氮气吸脱附测试表明,该氮掺杂多孔碳材料的比表面积可达到745m^2·g^(-1),其比表面积可以通过改变活化时间来调控。所制备的多孔碳材料对二氧化碳具有较好的吸附能力,在273K和0.1 MPa条件下,吸附量可达到7.3%(质量分数)。

In this paper,a series of porous nitrogen-doped carbon materials were prepared by aphysical activation method.A conductive polymer(polypyrrole)was used as a precursor.The samples were characterized by scanning electron microscopy,X-ray diffraction,nitrogen sorption test,and Raman spectroscopy.The specific surface area of the as-prepared nitrogen-doped carbon materials can reach 745m^2·g^(-1),and the specific surface area can be controlled by changing the activation time.The CO_2 adsorption capacity of the as-prepared porous carbon materials can reach 7.3% at 273 K and 0.1 MPa.