多孔氧化钛储氢的研究

Hydrogen storage in porous titanium oxide

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 oxides with different BET surface area and pore volume were synthesized by ligand--assisted templating methods using titanium isopropoxide as the precursor and alkylamine with various chain lengths as templating agents. These materials were characterized by XRD, nitrogen adsorption and TEIVL The hydrogen uptake capacities of these materials were measured at 77K. The results showed that the material with the highest BET surface area of all the materials had the highest hydrogen gravimetric and volumetric storage values, which were 3.92wt% and 21.48kg/m^2 , respectively.