10.1021/la070154t.s001
Giung-Ling Lin
Giung-Ling
Lin
Yi-Hua Tsai
Yi-Hua
Tsai
Hong-Ping Lin
Hong-Ping
Lin
Chih-Yuan Tang
Chih-Yuan
Tang
Ching-Yen Lin
Ching-Yen
Lin
Synthesis of Mesoporous Silica Helical Fibers Using a
Catanionic-Neutral Ternary Surfactant in a Highly Dilute Silica
Solution: Biomimetic Silicification
American Chemical Society
2007
Mesoporous Silica Helical Fibers
mesoporous carbon helical fibers
helical fibers
mesoporous silica helical fiber
mesoporous silica helical fibers
2007-04-10 00:00:00
Journal contribution
https://acs.figshare.com/articles/journal_contribution/Synthesis_of_Mesoporous_Silica_Helical_Fibers_Using_a_Catanionic_Neutral_Ternary_Surfactant_in_a_Highly_Dilute_Silica_Solution_Biomimetic_Silicification/3013954
Mesoporous silica helical fibers in many different shapes have been synthesized in a highly dilute silicate solution
at pH ∼2.0 by using C<i><sub>n</sub></i>TMAB-SDS-P123 (<i>n</i> = 14−18) ternary surfactant as a template. The mesoporous silica helical
fibers possess a well-ordered hexagonal mesostructure, high surface area, and large pore volume. Thus, the microtome
sections of the helical fibers demonstrate a concentric mesotructure or two hemiconcentric mesostructures. In addition
to triblock copolymer, adding the proper amount of 1-butanol or pentanol can promote the yield of the helical fibers
as well. The yield of the surfactant-templated helical fibers is also dependent on the water content, reaction temperature,
and pH value of the solution. The mesoporous silica helical fiber can be used as a solid template to prepare mesoporous
carbon helical fibers via impregnation of phenol-formaldehyde, pyrolysis, and silica removal.