Synthesis of Mesoporous Tungsten Trioxide with Crystalline Pore Wall at Low Hydrothermal Temperature |
| |
| Authors: | Xiaojuan Yu Zhenghe Xu Hongwei Che Xin Yan Xiaohong Zhao |
| |
| Affiliation: | 1. Key Lab of Colloid and Interface Chemistry (Shandong University) Ministry of Education , Shandong University , Jinan, P. R. China;2. Key Lab of Colloid and Interface Chemistry (Shandong University) Ministry of Education , Shandong University , Jinan, P. R. China;3. Department of Chemical and Materials Engineering University of Alberta , Edmonton, Alberta, Canada;4. School of Medicine , Shandong University of Traditional Chinese Medicine , Jinan, P. R. China |
| |
| Abstract: | Well-ordered hexagonal mesoporous tungsten trioxide with crystalline pore walls were synthesized at low hydrothermal temperature by using cationic quaternary ammonium gemini surfactants as structure-directing agents and sodium tungstate dihydrate (Na2WO4·2H2O) as a precursor. The effects of alkyl chain length of gemini surfactants, hydrothermal temperature and molar ratio of tungsten to gemini surfactants have been investigated in detail. The strong self-assembly ability of gemini surfactants, strong electrical interaction between gemini surfactants and tungsten trioxide, and solvent extraction strategy contributed together to the coexistence of WO3 mesostructures and crystalline pore walls. |
| |
| Keywords: | Crystalline pore walls gemini surfactants hexagonal mesostructure tungsten oxides |
|
|
