Calcining silica gels at different drying stages
Calcining silica gels at different drying stages
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DOI：
10.1016/s0167-577x(00)00156-7
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发表时间：
2000-11-01
影响因子：
3
通讯作者：
Gu, SR
中科院分区：
文献类型：
--
作者：
Huang, WL;Liang, KM;Gu, SR
采用酸催化的正硅酸乙酯（TEOS）体系制备了硅胶，经不同时间的常温干燥后，对硅胶的中孔结构和表面分形维数进行了研究。最大的中孔孔隙率被发现在长时间的环境干燥的样品，而未经干燥煅烧的样品表现出最低的表面分形维数。(C)2000 Elsevier Science B.V.保留所有权利。
Silica gels derived from an acid-catalyzed tetraethyl orthosilicate (TEOS) system were calcined after different duration of ambient drying, and their mesopore structure and surface fractal dimensions are investigated. The largest mesopore porosity is found in the sample with long period of ambient drying, while the sample calcined without drying exhibits the lowest surface fractal dimensions. (C) 2000 Elsevier Science B.V. All rights reserved.