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采用配体辅助模板法,以异丙醇钛为前体,使用不同碳链长度的烷基胺为模板剂来制备一系列不同比表面积和孔容的多孔氧化钛材料。采用X射线衍射,氮气吸附实验,透射电镜对所制取材料进行表征,并在77K的条件下测量所制取材料的储氢性能。结果表明,在材料中拥有最大比表面积的材料具有最高的储氢量,在77K和65大气压的条件下其重量和体积储氢量分别为3.92wt%和21.48kg/m3。
A series of porous titanium oxide materials with different specific surface area and pore volume were prepared by ligand-assisted template method using titanium isopropoxide as precursor and alkylamine with different carbon chain length as templating agent. The prepared materials were characterized by X-ray diffraction, nitrogen adsorption and transmission electron microscopy, and the hydrogen storage properties of the prepared materials were measured at 77K. The results show that the material with the largest specific surface area in the material has the highest hydrogen storage capacity, and its weight and volume hydrogen storage capacities are 3.92 wt% and 21.48 kg / m3, respectively, at 77 K and 65 atm.