Mesoporous Akaganeite of Adjustable Pore Size Synthesized using Mixed Templates

1st International Workshop on Materials Science and Mechanical Engineering

材料科学;机械制造

Zhang, Y.^1 ; Ge, D.L.^1 ; Ren, H.P.^1 ; Fan, Y.J.^1 ; Wu, L.M.^1 ; Sun, Z.X.^1

School of Chemistry and Chemical Engineering, University of Jinan, Jinan

250022, China^1

关键词: Adjustable pore size;    Alkyl amines;    Carbon chains;    Co-templates;    High specific surface area;    Mixed templates;    Possible mechanisms;    Total pore volume;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/281/1/012035/pdf
DOI  :  10.1088/1757-899X/281/1/012035

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

Mesoporous akaganeite with large and adjustable pore size was synthesized through a co-template method, which was achieved by the combined interaction between PEG2000 and alkyl amines with different lengths of the straight carbon chain. The characterized results indicate that the synthesized samples show comparatively narrow BJH pore size distributions and centered at 14.3 nm when PEG and HEPA was used, and it could be enlarged to 16.8 and 19.4 nm respectively through changing the alkyl amines to DDA and HDA. Meanwhile, all the synthesized akaganeite possess relativity high specific surface area ranging from 183 to 281 m2/g and high total pore volume of 0.98 to 1.5 cm3/g. A possible mechanism leading to the pore size changing was also proposed.