Sol–Gel Processing of Tetramethylammonium Silicate |
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| Authors: | Deok-Yang Kim Henry Du David W. JohnsonJr. Suhas Bhandarkar |
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| Affiliation: | Department of Chemical, Biomedical, and Materials Engineering, Stevens Institute of Technology, Hoboken, New Jersey 07030;School of Engineering, Alfred University, Alfred, New York 14802 |
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| Abstract: | A new sol–gel silica material based on tetramethylammonium silicate (TMAS) is reported here. Both xerogels and aerogels were produced by gelling a solution of 18.7 wt% TMAS using a series of esters. The gelation kinetics was controlled by varying the type and concentration of the ester. The supercritically dried TMAS aerogel was seen to have a larger pore size distribution with high porosity (>90%). In contrast, the conventionally dried gel showed a narrow distribution of mesopores, indicating its potential as a host matrix for protein encapsulations and catalysts. |
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| Keywords: | sol-gel processing silicates |
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