期刊
CHEMISTRY OF MATERIALS
卷 21, 期 13, 页码 2763-2769出版社
AMER CHEMICAL SOC
DOI: 10.1021/cm900289c
关键词
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资金
- Ministero degli Affari Esten Progetti di grande Rilevariza, ITA-ARG collaboration [FIRB 2003, RBNE 033 KMA]
- ANPCyT [PICT 34518, PAE 2004 12711, RENAMSI]
- LNLS [45755/07, 6721/07, 6729/07, 6666/07, 6690/07, 6698/07]
- CONICET
Expanding mesopore size beyond a 10 nm diameter is a big challenge for developing applications based on mesostructured-mesoporous thin films, especially in nanobiotechnology. This triggers the need of new multipore materials produced by reproducible soft chemistry routes, We present here a novel and simple. one-pot synthesis method that allows the creation of a new kind of hierarchically porous thin film using a combination of supramolecular templating and phase separation, Accurate tuning of pore size distribution (bimodal, with small mesopores 13-18 nm diameter, and large pores 20-150 nm diameter) is attained by controlling the solubility of a pore enhancement agent, poly (propylene glycol), in the presence of a co-solvent. The reported strategy permits the in situ tuning of the processes that govern the pore generation at different length scales; this opens a path for fabrication of multimodal mesoporous films, which represents an important breakthrough in the field.
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