Synthesis and Characterizations of MCM-41 Silica with Thick Pore Wall

Abstract:

Nano-structured mesoporous silica with highly ordered 2D hexagonal topology has been synthesized using novel surfactant cetyltrimethylammonium tosylate (CTATos) as template via directly hydrothermal treatment at high temperature of 175 °C and varied crystallization time. The maximum pore wall thickness is up to 2.2 nm calculated by BdB method from desorption branch. The enlargement of pore wall thickness and unit-lattice of currently synthesized MCM-41 silica is attributed to the migration and subsequent deposition of the silicate species in the inner pore channel.

• Periodical: Advanced Materials Research (Volumes 233-235)
• Pages: 2034-2037
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.233-235.2034
• Online since: May 2011
• Authors: Qiong Wei Hou, En Hui Yuan, Jin Gang Jiang, Kun Zhang
• Keywords: Formation Mechanism, Hydrothermal Synthesis, MCM-41, Surfactant Template, Tetramethylammonium, Thick Pore Wall, Tosylate Anion

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