Experimental study demonstrates crack-free mesoporous silica thin film synthesis on macroporous supports via polymer prefilling, suggesting broad uses in chemical sensing and membrane separation.
A crack-free, mesoporous silica thin film (see Figure) has been formed on a macroporous support by prefilling the support pores with poly(vinyl alcohol). The ordered mesoporous silica thin film with narrow pore size distribution was synthesized via a sol–gel route. These thin films have a number of potential applications, including in membrane-based separation processes, as catalysts, and as chemical sensors.
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Kim et al. (2002) studied this question.
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