A new restriction effect of hard templates for the shrinkage of mesoporous polymer during carbonization

Mingbo Zheng, Guangbin Ji, Yongwen Wang, Jian Cao, Shaoqing Feng, Lei Liao, Qinglai Du, Lifeng Zhang, Zongxin Ling, Jinsong Liu, Ting Yu, Jieming Cao (+1 others)
2009 Chemical Communications  
Experimental Details: Preparation of anodic aluminum oxide (AAO) membrane: The AAO membranes with average pore diameters of 50, 90, and 200 nm were prepared by ourselves. The aluminium foil (purity 99.5%) was anodized in 0.5 mol/L of oxalic acid solution or 0.36 mol/L of phosphoric acid solution. The AAO membranes with an average pore diameter of 300 nm was purchased from Whatman Ltd. Preparation of SiO 2 colloidal crystal: Nearly monodisperse SiO 2 microspheres with an average diameter of 220
more » ... m were synthesized by hydrolyzing tetraethyl orthosilicate (TEOS) and subsequent seed growth polymerization under basic conditions. [1] SiO 2 colloidal crystal was obtained by self-assembling SiO 2 microspheres using a vertical deposition technique. The SiO 2 colloidal crystal was heat-treated at 800 ºC for 3 h. The heat treatment Supplementary Material (ESI)
doi:10.1039/b910128d pmid:19668840 fatcat:3lndbjbkkjfmdkbemeeqyp6kze