Mesoporous Silver Films from Dilute Mixed-Surfactant Solutions by Using Dip-Coating
作者：Kun Luo, Claire T. Walker and Karen J. Edler
關(guān)鍵字：mesoporous films，mixed-surfactant ，dip coating
論文來源：期刊
具體來源：Advanced Materials
發(fā)表時間：2007年
We have used a dilute mixed-surfactant solution to synthesize mesoporous silver films by using a dip-coating method. This allows the creation of films over a large area of substrate and uses a smaller amount of surfactant than previous porous silver syntheses. Mesoporous materials are currently attracting attention for their unique physical properties and potential applications as catalysts, sensors, fuel cells, and separation systems. One popular method to prepare ordered mesoporous materials is through surfactant templating. In this method, amphiphilic surfactant molecules form micellar structures through self-assembly in aqueous solutions, and these micellar structures are employed as sacrificial templates around which inorganic materials are formed. Removal of the micelle phase results in porous materials with pores that have the size and shape of the initial templating micelle. This method has largely been focused on the production of porous oxides. However, porous metals are currently developing considerable importance in catalysis and other nanotechnological fields.