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Electrochemically Assisted Generation of Highly Ordered Azide‐Functionalized Mesoporous Silica for Oriented Hybrid Films
Author(s) -
Vilà Neus,
Ghanbaja Jaafar,
Aubert Emmanuel,
Walcarius Alain
Publication year - 2014
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.201309447
Subject(s) - azide , mesoporous material , surface modification , ferrocene , materials science , mesoporous silica , nanotechnology , click chemistry , chemical engineering , combinatorial chemistry , chemistry , organic chemistry , polymer chemistry , electrode , electrochemistry , catalysis , engineering
One key challenge in inorganic mesoporous films is the development of oriented mesostructures with vertical channels, and even more challenging is their functionalization while maintaining accessible the selected surface groups. Combining the electrochemically assisted deposition of ordered and oriented azide‐functionalized mesoporous silica with alkyne–azide click chemistry enables such nanostructured and vertically aligned hybrid films to be obtained with significant amounts of active organic functional groups, as illustrated for ferrocene and pyridine functions. A good level of mesostructural order was obtained, namely up to 40 % of organosilane in the starting sol. The method could be applied to a wide variety of functional groups, thus offering numerous new opportunities for applications in various fields.